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GMC 2010 T-Series Owner's Manual

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2010 GMC T-Series Owner Manual
Seats and Restraint System . . . . . . . . . . . . . . . . . . . . . . 1-1
Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Safety Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Child Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
Restraint System Check . . . . . . . . . . . . . . . . . . . . . . . . . 1-36
Features and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Doors and Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Starting and Operating Your Vehicle . . . . . . . . . . . . . . 2-7
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Storage Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Instrument Panel Overview . . . . . . . . . . . . . . . . . . . . . . . 3-4
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Warning Lights, Gages, and Indicators . . . . . . . . . . 3-20
Audio System(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
Driving Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Your Driving, the Road, and the Vehicle . . . . . . . . . . 4-2
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
Service and Appearance Care . . . . . . . . . . . . . . . . . . . 5-1
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Checking Things Under the Hood . . . . . . . . . . . . . . . 5-16
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-46
Cab Tilting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-47
Noise Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-54
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-55
Windshield Wiper Blade Replacement . . . . . . . . . . . 5-55
Other Service Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-56
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-59
Appearance Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-69
Vehicle Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-76
Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-76
Capacities and Specifications . . . . . . . . . . . . . . . . . . . 5-85
Normal Maintenance Replacement Parts . . . . . . . . 5-88
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Customer Assistance Information . . . . . . . . . . . . . . . 7-1
Customer Assistance and Information . . . . . . . . . . . . 7-2
Reporting Safety Defects . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Vehicle Data Recording and Privacy . . . . . . . . . . . . . 7-11
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i-1

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Summary of Contents for GMC 2010 T-Series

  • Page 1: Table Of Contents

    2010 GMC T-Series Owner Manual Seats and Restraint System ..... . 1-1 Service and Appearance Care ....5-1 Front Seats .
  • Page 2 General Motors of Canada index in the back of the manual. It is an alphabetical list Limited for GMC wherever it appears in this manual. of what is in the manual and the page number where it Keep this manual in the vehicle for quick reference.
  • Page 3 Safety Warnings and Symbols A circle with a slash through it is a safety Warning Messages found on vehicle labels and in this symbol which means manual describe hazards and what to do to avoid or Do Not, Do not do this, reduce them.
  • Page 4 Vehicle Symbol Chart : Fuel Gage Here are some additional symbols that may be found on : Fuses the vehicle and what they mean. For more information : Headlamp High/Low-Beam Changer on the symbol, refer to the index. : LATCH System Child Restraints : Airbag Readiness Light : Malfunction Indicator Lamp : Air Conditioning...

  • Page 5: Seats And Restraint System

    Section 1 Seats and Restraint System Front Seats ......... 1-2 Child Restraints .

  • Page 6: Front Seats

    Front Seats WARNING: Manual Seats You can lose control of the vehicle if you try to adjust a manual driver's seat while the vehicle is moving. The sudden movement could startle and confuse you, or make you push a pedal when you do not want to.
  • Page 7 Manual Lumbar To get more support in the lumbar area of your back, turn the lumbar adjustment knob. The knob is located on the inboard side of the driver's seatback and the outboard side of the passenger's seatback.
  • Page 8 Reclining Seatbacks To tilt the seatback, turn the reclining knob. The knob is located on the outboard side of both seats. WARNING: You can lose control of the vehicle if you try to adjust a manual driver's seat while the vehicle is moving.
  • Page 9 Air Suspension Seats WARNING: Your vehicle may have an air suspension seat. There are two ways you can adjust the seat. Sitting in a reclined position when your vehicle is Height Adjustment in motion can be dangerous. Even if you buckle up, your safety belts cannot do their job when you The height adjustment are reclined like this.
  • Page 10 Isolator Lock Lever Center Seat The lever is located on Your vehicle may have a center seat. the inboard side of the To fold the seatback down, pull the lever, located on the driver's seat. right side of the seat. Then lower the seatback forward and push down firmly to lock in position.

  • Page 11: Safety Belts

    Safety Belts WARNING: Safety Belts: They Are for Everyone It is extremely dangerous to ride in a cargo area, This part of the manual tells you how to use safety belts inside or outside of a vehicle. In a collision, properly.
  • Page 12 In most states and in all Canadian provinces, the law Why Safety Belts Work requires wearing safety belts. Here is why: When you ride in or on anything, you go as fast as You never know if you will be in a crash. If you do have it goes.
  • Page 13 Put someone on it. Get it up to speed. Then stop the vehicle. The rider does not stop.
  • Page 14 The person keeps going until stopped by something. or the instrument panel... In a real vehicle, it could be the windshield... 1-10...

  • Page 15: Questions And Answers About Safety Belts

    Questions and Answers About Safety Belts Q: Will I be trapped in the vehicle after a crash if I am wearing a safety belt? A: You could be whether you are wearing a safety belt or not. But you can unbuckle a safety belt, even if you are upside down.

  • Page 16: How To Wear Safety Belts Properly

    Q: If I am a good driver, and I never drive far from How to Wear Safety Belts Properly home, why should I wear safety belts? This section is only for people of adult size. A: You may be an excellent driver, but if you are in a Be aware that there are special things to know about crash even one that is not your fault...
  • Page 17 crash, this applies force to the strong pelvic bones and you would be less likely to slide under the lap belt. If you slid under it, the belt would apply force on your abdomen. This could cause serious or even fatal injuries.
  • Page 18 Q: What is wrong with this? WARNING: You can be seriously hurt if your shoulder belt is too loose. In a crash, you would move forward too much, which could increase injury. The shoulder belt should fit snugly against your body. A: The shoulder belt is too loose.
  • Page 19 Q: What is wrong with this? WARNING: You can be seriously hurt if your lap belt is too loose. In a crash, you could slide under the lap belt and apply force on your abdomen. This could cause serious or even fatal injuries. The lap belt should be worn low and snug on the hips, just touching the thighs.
  • Page 20 Q: What is wrong with this? WARNING: You can be seriously injured if your belt is buckled in the wrong place like this. In a crash, the belt would go up over your abdomen. The belt forces would be there, not on the pelvic bones. This could cause serious internal injuries.
  • Page 21 Q: What is wrong with this? WARNING: You can be seriously injured if your belt goes over an armrest like this. The belt would be much too high. In a crash, you can slide under the belt. The belt force would then be applied on the abdomen, not on the pelvic bones, and that could cause serious or fatal injuries.
  • Page 22 Q: What is wrong with this? WARNING: You can be seriously injured if you wear the shoulder belt under your arm. In a crash, your body would move too far forward, which would increase the chance of head and neck injury. Also, the belt would apply too much force to the ribs, which are not as strong as shoulder bones.
  • Page 23 Q: What is wrong with this? WARNING: You can be seriously injured by not wearing the lap-shoulder belt properly. In a crash, you would not be restrained by the shoulder belt. Your body could move too far forward increasing the chance of head and neck injury.
  • Page 24 Q: What is wrong with this? WARNING: You can be seriously injured by a twisted belt. In a crash, you would not have the full width of the belt to spread impact forces. If a belt is twisted, make it straight so it can work properly, or ask your dealer/retailer to fix it.
  • Page 25 Lap-Shoulder Belt All seating positions in the vehicle have a lap-shoulder belt except for the center passenger positions (if equipped), which have a lap belt. See Lap Belt on page 1 24 for more information. The following instructions explain how to wear a lap-shoulder belt properly.
  • Page 26 To unlatch the belt, push the button on the buckle. 5. To make the lap part tight, pull up on the The belt should return to its stowed position. shoulder belt. Before a door is closed, be sure the belt is out of the It may be necessary to pull stitching on the safety way.
  • Page 27 Shoulder Belt Height Adjustment Safety Belt Use During Pregnancy The vehicle has a shoulder belt height adjuster for the Safety belts work for everyone, including pregnant driver and front passenger seating positions. women. Like all occupants, they are more likely to be seriously injured if they do not wear safety belts.
  • Page 28 Lap Belt This section is only for the lap belt. To learn how to wear a lap-shoulder belt, see Lap-Shoulder Belt on page 1 21. The vehicle may have a center seating position. When you sit in the center front seating position, you have a lap safety belt, which has no retractor.

  • Page 29: Child Restraints

    Safety Belt Extender Child Restraints If the vehicle's safety belt will fasten around you, you Older Children should use it. But if a safety belt is not long enough, your dealer/ retailer will order you an extender. When you go in to order it, take the heaviest coat you will wear, so the extender will be long enough for you.
  • Page 30 The manufacturer's instructions that come with the Q: What is the proper way to wear safety belts? booster seat, state the weight and height limitations for A: An older child should wear a lap-shoulder belt and that booster. Use a booster seat with a lap-shoulder belt get the additional restraint a shoulder belt can until the child passes the below fit test: provide.
  • Page 31 WARNING: (Continued) head and neck injury. The child might also slide under the lap belt. The belt force would then be applied right on the abdomen. That could cause serious or fatal injuries. The shoulder belt should go over the shoulder and across the chest. WARNING: Never do this.

  • Page 32: Infants And Young Children

    Infants and Young Children airbag system is designed for them. Every time infants and young children ride in vehicles, they should have Everyone in a vehicle needs protection! This includes the protection provided by appropriate child restraints. infants and all other children. Neither the distance Children who are not restrained properly can strike traveled nor the age and size of the traveler changes other people, or can be thrown out of the vehicle.
  • Page 33 WARNING: (Continued) in a rear seat. It is also better to secure a forward-facing child restraint in a rear seat. If you must secure a forward-facing child restraint in the right front seat, always move the front passenger seat as far back as it will go. WARNING: Never do this.
  • Page 34 Q: What are the different types of add-on child restraints? WARNING: (Continued) A: Add-on child restraints, which are purchased by the vehicle's owner, are available in four basic types. and its head weighs so much compared with Selection of a particular restraint should take into the rest of its body.

  • Page 35: Child Restraint Systems

    Child Restraint Systems A rear-facing infant seat (A) provides restraint with the seating surface against the back of the infant. The harness system holds the infant in place and, in a crash, acts to keep the infant positioned in the restraint. A booster seat (C-D) is a child restraint designed to improve the fit of the vehicle's safety belt system.
  • Page 36 Securing an Add-on Child Restraint in When securing an add-on child restraint, refer to the instructions that come with the restraint which may be the Vehicle on the restraint itself or in a booklet, or both, and to this manual. The child restraint instructions are important, so if they are not available, obtain a replacement copy WARNING: from the manufacturer.
  • Page 37 Lower Anchors and Tethers for In Canada, the law requires that forward-facing child restraints have a top tether, and that the tether be Children (LATCH) attached. Some child restraints have a LATCH system. As part of Your vehicle does not have lower anchors or top tether the LATCH system, your child restraint may have lower anchors to secure a child restraint with the LATCH attachments and/or a top tether.
  • Page 38 Securing a Child Restraint in Your In Canada, the law requires that forward-facing child restraints have a top tether, and that the tether be Medium Duty Vehicle attached. We know securing a child can present real problems in a medium-duty vehicle like yours. The only place where you can properly secure a child restraint is the center seating position, the place that has the lap belt only.
  • Page 39 5. Tighten the belt by pulling its free end while you push down on the child restraint. If you are using a forward-facing child restraint, you may find it helpful to use your knee to push down on the child restraint as you tighten the belt. 6.

  • Page 40: Restraint System Check

    Restraint System Check Replacing Restraint System Parts After a Crash Checking the Restraint Systems WARNING: Now and then, make sure the safety belt reminder light and all your belts, buckles, latch plates, retractors and anchorages are working properly. A crash can damage the restraint systems in your Look for any other loose or damaged safety belt system vehicle.

  • Page 41: Features And Controls

    Section 2 Features and Controls Keys ..........2-2 Manual Transmission Operation .

  • Page 42: Keys

    Keys WARNING: Leaving children in a vehicle with the ignition key is dangerous for many reasons, children or others could be badly injured or even killed. They could operate the power windows or other controls or even make the vehicle move. The windows will function with the keys in the ignition and children could be seriously injured or killed if caught in the path of a closing window.

  • Page 43: Doors And Locks

    Doors and Locks WARNING: (Continued) Door Locks Outsiders can easily enter through an unlocked door when you slow down or stop WARNING: your vehicle. Locking your doors can help prevent this from happening. Unlocked doors can be dangerous. A manual door lock is located above each door handle. Passengers, especially children, can easily open the doors and fall out of a moving vehicle.

  • Page 44: Windows

    When the doors are locked, they can't be opened using the inside handles until the manual lock is pulled out. Windows WARNING: Leaving children, helpless adults, or pets in a vehicle with the windows closed is dangerous. They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke.
  • Page 45 Power Windows Power Window Lock Switch Pressing the power window lock switch once locks the If your vehicle has power passenger side window and prevents it from opening or windows, the switches for closing. Pressing the switch a second time unlocks the both windows are located passenger side window.

  • Page 46: Passenger Side Door Glass

    Passenger Side Door Glass WARNING: Never open the passenger side door glass with the ignition on. You can be injured if the window linkage moves. Open this glass only with the ignition off. To open the window cover, pull on the latch at the rear of the window and swing the window cover open.

  • Page 47: Starting And Operating Your Vehicle

    Use the lowest gear you can when you start Starting and Operating Your a loaded vehicle in motion and when going Vehicle up hills to avoid overloading the engine. Check and adjust engine and transmission New Vehicle Break-In fluid levels often and be sure tires are properly inflated for the load you are Notice: The vehicle does not need an elaborate carrying.
  • Page 48 Ignition Positions If you leave the key in the ACC/ACCESSORY or ON/ RUN position with the engine off, the battery could be The ignition switch has drained. You may not be able to start the vehicle if the four different positions. battery is allowed to drain for an extended period of time.
  • Page 49 Manual Transmission 3. If the engine does not start after 15 seconds of cranking, turn the ignition key to LOCK/OFF. Wait Move the shift lever to N (Neutral) and hold the clutch one minute for the starter to cool, then try the pedal to the floor while starting the engine.
  • Page 50 If the Engine Will Not Start WARNING: If you are not out of fuel, and the engine will not start, do this: Do not use gasoline or starting aids, such as Turn the ignition key to ON/RUN. Immediately after ether, in the air intake. They could damage the the wait to start light goes off, turn the ignition key engine.
  • Page 51 The alarm means that your engine will shut down. See If the parking brake is not engaged, then the engine Engine Shutdown Warning Light on page 3 35 for more shuts down after 15 minutes of continuous idling information. operation. Pull off the road and shut off the engine.
  • Page 52 The ENGINE SHUTDOWN WARNING LIGHT will come High Idle System on and a continuous chime will alert the driver Manual High Idle System 30 seconds before the engine goes into idle shutdown mode. The engine shutdown warning light and chime If the vehicle has this will stay on for the entire duration of the idle shutdown feature, the manual high...

  • Page 53: Engine Checks Before Operating

    Exhaust Restrictor When the engine coolant temperature is below 149°F (65°C) and the outside temperature is below If the vehicle is equipped with this feature, there is an 50°F (10°C), the exhaust restrictor will come on within exhaust restrictor valve located in the exhaust stream. 60 seconds of starting the engine.
  • Page 54 The charging system light should come on when During this warm-up period, check the warning lights the ignition key is turned to ON/RUN or START and and gages: should go out when the engine is running above If oil pressure does not begin to rise within idle.

  • Page 55: Engine Coolant Heater

    Engine Coolant Heater WARNING: The engine coolant heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below 0°F ( 18°C). Vehicles Plugging the cord into an ungrounded outlet could with an engine coolant heater should be plugged in at cause an electrical shock.

  • Page 56: Automatic Transmission Operation

    Diesel Engine Exhaust Brake When using the exhaust brake, the proper gear range selection is important. The exhaust brake will be most The exhaust brake is used to help slow the vehicle and effective if the gear range selected is the lowest may assist the vehicle's foundation brakes.
  • Page 57 WARNING: Shifting into a drive gear while the engine is running at high speed is dangerous. Unless your foot is firmly on the brake pedal, the vehicle could move very rapidly. You could lose control and hit ® people or objects. Do not shift into a drive gear Vehicles equipped with an Allison 3000 Series while the engine is running at high speed.
  • Page 58 Manual Transmission Operation Press the button to turn on the overdrive defeat. Press the button again to turn off the overdrive defeat. The Using the Clutch indicator light in the button will come on whenever overdrive defeat is active. When you are starting to move the vehicle, it is important to begin with the engine speed at idle.
  • Page 59 ® ® Eaton Fuller Nine and Ten-Speed the engine rpm and road speed match. Then quickly disengage the clutch and move the shift lever to the Non-Synchronized Manual next gear position and engage the clutch. Transmissions Clutch Brake (Vehicles with If the vehicle has one of these non-synchronized Non-Synchronized Transmission) transmissions, it is naturally somewhat complicated.
  • Page 60 Power Take-Off (PTO) Parking The vehicle may be WARNING: equipped with power take-off (PTO). The PTO switch is located on the If you do not park the vehicle properly, it can roll. instrument panel. If you have left the engine running, it can move very quickly.
  • Page 61 Two-Speed Rear Axle Two-Speed Rear Axle Shift Control Operation The Two-Speed rear axle lets the driver select Low Range and High Range. Low Range provides good The rear axle shift control starting torque and pulling power. When selecting High switch for automatic and Range the axle allows for higher road speed and fuel manual transmissions is economy.
  • Page 62 Shifting Split Upshift (Manual Transmissions Only) To downshift the axle with a transmission upshift: Upshifting the Axle 1. Push the clutch. To shift from Low to High Range: 2. Shift the Transmission to a higher gear. 1. Press the bottom of the switch to shift the axle 3.
  • Page 63 Parking Brake (With Hydraulic Brakes) If the vehicle has hydraulic brakes, it has a parking brake lever. The lever is located in the center console. The vehicle may also be equipped with an automatic transmission which has a center console shift lever. This lever will have a P (Park) position on the shift indicator.
  • Page 64 To release the parking brake, first push down the Vehicles built for use as tractors or towing vehicles have regular brake pedal. Then, while pressing in the release two air brake controls. They look like this: button, push the parking brake lever all the way down and shift the transmission to N (Neutral).
  • Page 65 To charge a trailer's air brake system do the following: WARNING: 1. Move the vehicle into the proper position. 2. Apply the parking brake by pulling the yellow parking brake knob out. If you apply any one of the air brake parking controls while the vehicle is moving, the rig will 3.

  • Page 66: Air Suspension

    Parking Brake Burnish Procedure Air Suspension All vehicles which have hydraulic brakes will have a The vehicle may have the Hendrickson HAS Series parking brake. It is recommended that the parking brake single-axle air suspension which is designed for a be burnished as part of the new vehicle break-in.

  • Page 67: Parking Over Things That Burn

    Parking Over Things That Burn WARNING: (Continued) WARNING: The exhaust smells or sounds strange or different. Things that can burn could touch hot exhaust The exhaust system leaks due to corrosion or parts under the vehicle and ignite. Do not park damage.
  • Page 68 Diesel Particulate Filter Extended idling can cause exhaust parts and gases to become very hot. Keep the exhaust area clear of The vehicle has a Diesel Particulate Filter (DPF) as part material that could ignite or burn. See Parking Over of the exhaust system to reduce vehicle emissions.
  • Page 69 Notice: Extended idle should be avoided because Notice: Permanent damage can occur to the DPF the DPF system is not capable of self cleaning or related components if the required Ultra Low at idle. During extended idle operation, monitor Sulfur Diesel (15 ppm sulfur maximum) or low ash the instrument panel telltale lights and Driver CJ-4 engine oil is not used.
  • Page 70 Manual Cleaning Procedure When it is safe to do so, stop the vehicle. Perform DPF manual cleaning in a well ventilated area. DPF Manual cleaning must be performed outdoors, as follows. Once WARNING: manual cleaning is started, complete the cleaning in a single operation if possible.
  • Page 71 4. Fully set the parking brake. 9. When both the green and the yellow or red DPF indicator lights go off, manual cleaning is 5. Shift the transmission to P (Park) or N (Neutral). completed. Manual cleaning is normally completed 6.
  • Page 72 Running the Vehicle While Parked WARNING: It is better not to park with the engine running. But if you ever have to, here are some things to know. It can be dangerous to get out of the vehicle if the automatic transmission shift lever is not fully in WARNING: P (Park) with the parking brake firmly set.

  • Page 73: Mirrors

    Mirrors Outside Convex Mirrors Manual Rearview Mirror WARNING: Hold the inside rearview mirror in the center to move it for a clearer view of behind your vehicle. Adjust the A convex mirror can make things (like other mirror to avoid glare from the headlamps behind you. vehicles) look farther away than they really are.

  • Page 74: Storage Areas

    Outside Heated Mirrors Storage Areas Vehicles with outside Overhead Storage heated mirrors have the control switch located on the instrument panel. Press the switch to turn the outside heated rearview mirrors on. The switch indicator light will come on and stay on whenever the outside heated rearview mirrors are activated.
  • Page 75 Center Seat Storage A storage compartment is located behind the seatback in the center seat. To access the compartment, you must first pull down on the handle located on the passenger side to fold the seat all the way forward. To open, squeeze both sides of the latch.
  • Page 76 NOTES 2-36...

  • Page 77: Instrument Panel

    Section 3 Instrument Panel Instrument Panel Overview ......3-4 Warning Lights, Gages, and Indicators ..3-20 Hazard Warning Flashers .
  • Page 78 Section 3 Instrument Panel Exhaust Brake Indicator Light ....3-35 Diesel Particulate Filter Warning Light ..3-38 Differential Lock Indicator Light .
  • Page 79 NOTES...

  • Page 80: Instrument Panel Overview

    Instrument Panel Overview...

  • Page 81: Audio System(S)

    The main components of the instrument panel are the following: A. Rear Reading Lamps on page 3 15. N. Air Brake Controls (If Equipped). See Parking Brake (With Hydraulic Brakes) on page 2 23 or B. Cruise Control on page 3 10. Parking Brake (With Air Brakes) on page 2 24.

  • Page 82: Horn

    Hazard Warning Flashers Tilt Wheel The hazard warning flashers are controlled by the lever A tilt steering column lets the steering wheel be located to the right of the steering column. adjusted. (Hazard Warning Flasher): Move the lever up to To tilt the column, hold the make the front and rear turn signal lamps flash on and steering wheel and pull...
  • Page 83 Turn Signal/Multifunction Lever Move the steering wheel to a comfortable location, then lock the column in place by turning the lock lever all the way down. The multifunction lever, located on the left side of the Do not adjust the tilt steering column while driving. steering column, includes the following: : Turn and Lane-Change Signals : Headlamps...
  • Page 84 Turn and Lane-Change Signals Headlamp High/Low-Beam Changer Push the multifunction lever toward the instrument An arrow on the panel to change the headlamps from low to high beam. instrument panel cluster To return to low-beam headlamps, pull the multifunction flashes in the direction of lever toward you.

  • Page 85: Windshield Wipers

    Windshield Wipers : Turn this band on the windshield wiper lever to set the delay time between wipes. The closer to the top of the lever, the shorter the delay. : Slow wipes. : Fast wipes. Clear ice and snow from the wiper blades before using them.

  • Page 86: Windshield Washer

    Windshield Washer Cruise Control With cruise control, a speed of about 40 km/h (25 mph) The windshield washer or more can be maintained without keeping your foot on button is located at the the accelerator. Cruise control does not work at speeds end of the multifunction below about 40 km/h (25 mph).
  • Page 87 Setting Cruise Control 1. Press the button to turn the cruise control on. The light inside the switch will turn on. This button located at 2. Get up to the desired speed. the lower left side of the instrument panel, turns 3.
  • Page 88 Increasing Speed While Using Cruise Passing Another Vehicle While Using Control Cruise Control There are two ways to go to a higher speed: Use the accelerator pedal to increase your vehicle's speed. When you take your foot off the pedal, the Use the accelerator pedal to get to the higher vehicle slows down to the cruise control speed that speed.

  • Page 89: Headlamps

    Erasing Speed Memory 2(Headlamps) : Turns on all the headlamps, together with the previously listed lamps and lights. The cruise control set speed memory is erased when A circuit breaker protects the headlamps. If there is an the ignition is turned off. electrical overload, the headlamps will flicker on and off.

  • Page 90: Marker Lamps

    Marker Lamps When it begins to get dark, the DRL indicator For vehicles designed for trailer towing, this button light is a reminder to turn operates the marker and clearance lamps. the headlamp switch on. The marker and clearance lamp button is located in the instrument panel.
  • Page 91 Instrument Panel Brightness Rear Reading Lamps For vehicles with this For vehicles with a rear feature, the knob is lamp button, it is located located on the lower right on the lower left side of of the instrument panel. the instrument panel. See Instrument Panel Overview on page 3 4.
  • Page 92 Auxiliary Power Jacks Ashtray(s) and Cigarette Lighter For vehicles with an ashtray and a cigarette lighter, they For vehicles with these are located in the center floor console. To open the power jacks, they are on removable ashtray, flip open the top. the console to the right of the driver's seat.
  • Page 93 Climate Controls Temperature Control : Slide the lever towards COLD for cooler air or towards HOT for warmer air. 9(Fan Control) : Slide the lever right or left to Climate Control System increase or decrease the fan speed. Slide the fan lever The heating, cooling, and ventilation for the vehicle can to OFF to turn the system off.

  • Page 94: Outlet Adjustment

    0(Defrost) : This mode removes fog or frost from vehicle has cooled, turn the recirculation mode off. the windshield more quickly. Air is directed to the The air-conditioning system removes moisture from windshield and the side window outlets, with some air the air, so a small amount of water might drip under directed to the floor outlets.

  • Page 95: Passenger Compartment Air Filter

    Passenger Compartment Air Filter To inspect and clean the passenger compartment air filter, use the following steps: The passenger compartment outside air is routed 1. Pull the tab located at through a passenger compartment filter. The filter the bottom of the removes certain debris, including dirt and leaves.
  • Page 96 Warning Lights, Gages, and 2. Pull the tab and remove the filter. Indicators Warning lights and gages can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to the warning lights and gages could prevent injury. Warning lights come on when there might be or there is a problem with one of the vehicle's functions.

  • Page 97: Instrument Panel Cluster

    Instrument Panel Cluster Your instrument panel cluster is designed to let you know at a glance how your vehicle is running. You will know how fast you are going, about how much fuel is left and many other things you will need to drive safely and economically. United States version shown, Canada similar 3-21...

  • Page 98: Speedometer And Odometer

    Speedometer and Odometer Tachometer The speedometer shows the vehicle's speed in both This gage shows the kilometers per hour (km/h) and miles per hour (mph). safe operating range for the engine speed The odometer shows how far the vehicle has been in revolutions per driven, in either kilometers (used in Canada) or miles minute (rpm).

  • Page 99: Safety Belt Reminders

    Engine Road Speed Governor Safety Belt Reminders This system controls maximum vehicle speed Safety Belt Reminder Light automatically and reduces engine power until vehicle speed gets down to maximum governed speed. When the engine is started, a light will come on for several seconds to remind people to fasten their A 120 km/h (75 mph) road speed governor is standard safety belts.

  • Page 100: Charging System Light

    Charging System Light Voltmeter Gage The charging system light When your engine is may be located in the running, the voltmeter instrument panel cluster, gage shows the charging or with the auxiliary system voltage. warning lights in the center of the instrument panel.

  • Page 101: Service Transmission Warning Light

    Service Transmission Warning Light Range Inhibit Warning Indicator ® If your vehicle has an Allison automatic transmission, Your vehicle may have certain transmission malfunctions will turn this light on. this light. This light is located with the auxiliary warning lights in the center of the instrument panel.
  • Page 102 Hydraulic Brake System Warning Lights If this light comes on, it means there may be a Vehicles with hydraulic brake systems have two brake problem with the brake system warning lights on the instrument panel. system. If this light comes on, the fluid level in the master cylinder reservoir is low or there is a problem with...
  • Page 103 Parking Brake Warning Light When the warning light comes on while you are driving, you should drive only as far as the nearest point of This light will also come on when you set the parking safety and then stop the vehicle. brake.

  • Page 104: Antilock Brake System (Abs) Warning Light

    Antilock Brake System (ABS) Trailer Antilock Brake System Warning Light Warning Light This light will come on If your vehicle is briefly when you start the connected to a trailer with engine, then it will turn off. antilock brakes, this light This is normal.

  • Page 105: Traction Control System (Tcs) Active Light

    Traction Control System (TCS) Engine Coolant Temperature Gage Active Light If your vehicle has the Traction Control System (TCS), this light will come on when the system is limiting wheel spin. Slippery road conditions may exist if the TCS active light comes on, so adjust your driving accordingly.

  • Page 106: Low Coolant Warning Light

    Low Coolant Warning Light Wait to Start Light Your vehicle has a low This indicator, in the left of coolant warning light. the instrument panel, will If this light comes on, the come on when the glow system is low on coolant plugs are on and the and the engine may ignition key is in ON/RUN...

  • Page 107: Malfunction Indicator Lamp

    Malfunction Indicator Lamp This light should come on when the ignition is on, but the engine is not running, as a check to show it is Check Engine Light working. If it does not come on at all, have it repaired. Notice: If the vehicle is continually driven with this A computer system called OBD II (On-Board light on, after a while, the emission controls might...
  • Page 108 An emission system malfunction might be corrected by Emissions Inspection and Maintenance doing the following: Programs If the vehicle has been driven through a deep Some state/provincial and local governments have puddle of water, the vehicle's electrical system or might begin programs to inspect the emission might be wet.

  • Page 109: Oil Pressure Gage

    Oil Pressure Gage A reading in the low pressure zone may be caused by a dangerously low oil level or other problem. See Engine Oil on page 5 16 and Scheduled Maintenance on page 6 5 for more information. WARNING: Do not keep driving if the oil pressure is low.

  • Page 110: Low Oil Level Light

    Low Oil Level Light Change Engine Oil Light This light comes on briefly Your vehicle may have a when the engine is change engine oil light. started. This normal. If the light fails to come on, have it repaired as soon as It should come on briefly as a bulb check when you possible so you will be aware when the oil level is low.

  • Page 111: Engine Overspeed Warning Light

    Engine Overspeed Warning Light Exhaust Brake Indicator Light If your vehicle has this For vehicles with an light, it will come on if exhaust brake, this light is your engine is operating located above the climate at too many revolutions controls.

  • Page 112: Reduced Engine Power Light

    Highbeam On Light The light will come on momentarily during starting. If the light fails to come on, have it repaired as soon This light comes on when as possible so you will be aware when the lock system the high-beam headlamps is in use.

  • Page 113: Check Gages Warning Light

    Check Gages Warning Light Fuel Gage This light will come on Your fuel gage is located briefly when the engine is on the right side of your started. instrument panel cluster. If this light comes on and stays on while you are driving. It means that either the engine coolant temperature gage or the engine oil pressure gage may be showing a reading in the warning zone.

  • Page 114: Water In Fuel Warning Light

    Here are four concerns of some operators. None of Diesel Particulate Filter Warning these shows a problem with your fuel gage: Light The gage moves a little when you turn a corner or speed up. Your vehicle may have two Diesel Particulate The gage doesn't go back to empty when you turn Filter (DPF) Warning off the ignition.

  • Page 115: Air Pressure Gage

    Air Pressure Gage Hourmeter Gage To access the engine hourmeter gage press the trip If your vehicle has air odometer button three times. brakes, this gage shows the air pressure for both The instrument panel cluster displays the accumulated your front and rear brake engine run time hours using the reconfigurable systems.

  • Page 116: Audio System(S)

    Audio System(s) For more information, see Defensive Driving on page 4 2. If the vehicle came without a radio, the wiring provisions Notice: Contact your dealer/retailer before adding for a radio and an antenna were installed at the any equipment. assembly plant, so that if you want, a radio can be Adding audio or communication equipment could installed at the dealer/retailer.

  • Page 117: Radio(S)

    CLOCK : Press this button to enter the clock Radio(s) setting mode. Press and release this button to toggle between the clock and the function mode. While the clock is displayed, the radio and CD player can be used. If a change is made to the radio or CD player settings, the display shows the change for 10 seconds before returning to the clock display.
  • Page 118 Finding a Station Setting Preset Stations FM/AM : Press to switch between FM1, FM2, or AM. Up to 18 stations (six FM1, six FM2, and six AM), The selection displays. can be programed on the six numbered pushbuttons, by performing the following steps: (Tune): Press either arrow to go to a higher or to 1.
  • Page 119 Adjusting the Speakers (Fade/Balance) 4. Press the down tuning arrow to change the minutes. After setting the alarm, the display AUDIO : To adjust the fade between the front and the changes back to the current time. rear speakers, press and release until FADER (FA:0) 5.
  • Page 120 Care of Your CDs Care of Your CD Player If playing a CD-R, the sound quality can be reduced Do not add any label to a CD, it could get caught in the due to CD-R quality, the method of recording, the CD player.
  • Page 121 DISP : While a CD is playing, press to toggle between (Track Up/Down) : Press and release the up clock, track number, and play time (P-TIME) display. arrow to move to the beginning of the next track. If the CD player is in random mode, it goes to the next If the DISP button is not pressed, after five seconds the randomly selected track.

  • Page 122: Radio Reception

    If any error occurs repeatedly or if an error cannot be levels during the day, and then reduce these levels corrected, contact your dealer/retailer. If the radio during the night. Static can also occur when things like displays an error message, write it down and provide it storms and power lines interfere with radio reception.

  • Page 123: Driving Your Vehicle

    Section 4 Driving Your Vehicle Your Driving, the Road, and the Vehicle ..4-2 Loss of Control ....... . 4-11 Driving for Better Fuel Economy .

  • Page 124: Your Driving, The Road, And The Vehicle

    Your Driving, the Road, and Defensive Driving the Vehicle Defensive driving means always expect the unexpected. The first step in driving defensively is to wear your safety belt See Safety Belts: They Are for Driving for Better Fuel Economy Everyone on page 1 7. Driving habits can affect fuel mileage.

  • Page 125: Drunk Driving

    Drunk Driving For persons under 21, it is against the law in every U.S. state to drink alcohol. There are good medical, psychological, and developmental reasons for WARNING: these laws. The obvious way to eliminate the leading highway safety problem is for people never to drink alcohol and Drinking and then driving is very dangerous.

  • Page 126: Braking

    Braking heavy braking. Keeping pace with the traffic and allowing realistic following distances eliminates a lot of See Brake System Warning Light on page 3 25. unnecessary braking. That means better braking and longer brake life. Braking action involves perception time and reaction time.

  • Page 127: Antilock Brake System (Abs)

    If this ever happens, let up on the brake pedal a little. ABS can change the brake pressure to each wheel, as When you let up on the brake pedal in that situation, it required, faster than any driver could. This can help the lets the steering get a little more help from the pump.

  • Page 128: Trailer Brake Hand Control Valve

    Trailer Brake Hand Control Valve WARNING: If your vehicle has this feature, the control is mounted on the floor console. Using the trailer brake hand control for parking or This feature lets you apply for holding the vehicle on a hill may not keep the the trailer brakes without vehicle from rolling.

  • Page 129: Traction Control System (Tcs)

    If approaching a slippery surface where one or both TCS may operate on dry roads under some conditions. wheels may start to slip, press the switch to off. The When this happens, a reduction in acceleration may rear differential locks so power is transmitted equally to be noticed.

  • Page 130: Steering

    Steering To turn the system on or off, press the traction Power Steering control button located on the instrument panel. If power steering assist is lost because the engine stops or the system is not functioning, the vehicle can be steered but it will take more effort.
  • Page 131 Steering in Emergencies There are times when steering can be more effective than braking. For example, you come over a hill and find a truck stopped in your lane, or a car suddenly pulls out from nowhere, or a child darts out from between parked cars and stops right in front of you.

  • Page 132: Off-Road Recovery

    Off-Road Recovery Passing The vehicle's right wheels can drop off the edge of a Passing another vehicle on a two-lane road can be road onto the shoulder while driving. dangerous. To reduce the risk of danger while passing: A vehicle like yours takes a longer time to reach passing speed, so you will need a longer stretch of clear road ahead than you would with a passenger car.

  • Page 133: Loss Of Control

    Loss of Control Of course, traction is reduced when water, snow, ice, gravel, or other material is on the road. For safety, slow Let us review what driving experts say about what down and adjust your driving to these conditions. It is happens when the three control systems brakes, important to slow down on slippery surfaces because...

  • Page 134: Driving At Night

    Driving at Night No one can see as well at night as in the daytime. But, as we get older, these differences increase. Night driving is more dangerous than day driving A 50-year-old driver might need at least twice as much because some drivers are likely to be impaired light to see the same thing at night as a 20-year-old.

  • Page 135: Highway Hypnosis

    Other Rainy Weather Tips WARNING: (Continued) Besides slowing down, other wet weather driving tips include: Flowing or rushing water creates strong forces. Allow extra following distance. Driving through flowing water could cause your Pass with caution. vehicle to be carried away. If this happens, you Keep windshield wiping equipment in good shape.

  • Page 136: Hill And Mountain Roads

    Hill and Mountain Roads WARNING: Driving on steep hills or through mountains is different than driving on flat or rolling terrain. Tips for driving in these conditions include: Coasting downhill in N (Neutral) or with the ignition off is dangerous. The brakes will have to Keep the vehicle serviced and in good shape.

  • Page 137: Winter Driving

    Winter Driving If the vehicle has the Traction Control System (TCS) on page 4 7, it improves the ability to accelerate on Driving on Snow or Ice slippery roads, but slow down and adjust your driving to the road conditions. When driving through deep snow, Drive carefully when there is snow or ice between the turn off the traction control system to help maintain tires and the road, creating less traction or grip.
  • Page 138 Blizzard Conditions WARNING: (Continued) Being stuck in snow can be in a serious situation. Stay with the vehicle unless there is help nearby. If possible, use the Roadside Assistance Program on page 7 5. Open a window about 5 cm (two inches) on To get help and keep everyone in the vehicle safe: the side of the vehicle that is away from the wind to bring in fresh air.

  • Page 139: If Your Vehicle Is Stuck In Sand, Mud, Ice

    To save fuel, run the engine for only short periods as needed to warm the vehicle and then shut the engine WARNING: off and close the window most of the way to save heat. Repeat this until help arrives but only when you feel If you let your vehicle's tires spin at high speed, really uncomfortable from the cold.

  • Page 140: Tow Hooks

    Tow Hooks Loading the Vehicle It is the responsibility of the Final Stage manufacturer to install a Certification label on your vehicle. This label WARNING: shows how much weight your vehicle can properly carry. It may also show the size of the vehicle's original These hooks, when used, are under a lot of force.
  • Page 141 Never exceed the GVWR for your vehicle, or the GAWR If you put things inside your vehicle like suitcases, for either the front or rear axle. tools, packages, or anything else they go as fast as the vehicle goes. If you have to stop or turn quickly, or if And, if you do have a heavy load, spread it out.

  • Page 142: Towing

    Towing WARNING: (Continued) Towing Your Vehicle When the brake springs are manually compressed, you will have no brakes. WARNING: Release your air-operated parking brakes manually only to tow the vehicle. Never drive the vehicle with the brakes released. To help avoid serious personal injury to you or others: Consult your dealer/retailer or a professional towing Never let passengers ride in a vehicle that is...
  • Page 143 Here are specific towing instructions: After Towing 1. Block the rear wheels and install axle shafts and/or Towing Your Vehicle From the Front propshafts. (All Wheels On the Ground) 2. Check for proper phasing of universal joints. The vehicle may be towed on all wheels provided the 3.
  • Page 144 Towing the Vehicle with the Front Bumper Rear Axle Removed 1. Disconnect the propshaft at the rear axle. 1. Remove the front bumper. 2. Secure the propshaft to the frame or the crossmember. 2. Connect and lock the lift chains to the front axle, outside of the spring anchor plates as shown.
  • Page 145 After Towing 1. Block the rear wheels and release the steering wheel. 2. Apply the parking brake system before disconnecting from the towing vehicle. 3. Check and fill the rear axle with oil as required. Releasing Air-Operated Parking Brakes If the vehicle has air brakes, there could be a special towing problem.
  • Page 146 3. Remove the rubber cap 6. Turn the stud nut from the rear of the clockwise several turns chamber. to release the brakes. Follow the same procedure to release the other brake or brakes. 4. Put the release stud, nut and flat washer into the 7.

  • Page 147: Trailer Connections (T7/T8 Models Only)

    Trailer Connections Heavy-Duty Trailer Wiring Package (T7/T8 Models Only) The vehicle may have an eight-wire trailer towing harness. This harness, with a seven-pin universal If the vehicle has these trailer connections, they are heavy-duty trailer connector, is attached to a bracket on located at the rear of the cab for a tractor and at the the platform hitch.
  • Page 148 NOTES 4-26...
  • Page 149 Section 5 Service and Appearance Care Service ..........5-3 Engine Coolant .
  • Page 150 Section 5 Service and Appearance Care Tires ..........5-59 Tires .

  • Page 151: Service

    Service Accessories and Modifications Adding non-dealer accessories to the vehicle can affect For service and parts needs, visit your dealer/retailer. its performance and safety. Such things as airbags, You will receive genuine GM parts and GM-trained and braking, stability, ride and handling, emissions systems, supported service people.

  • Page 152: California Proposition 65 Warning

    Aftermarket Engine Performance California Proposition 65 Warning Enhancement Products and Most motor vehicles, including this one, contain and/or Modifications emit chemicals known to the State of California to cause cancer and birth defects or other reproductive Some aftermarket engine performance products and harm.

  • Page 153: Doing Your Own Service Work

    Doing Your Own Service Work If doing some of your own service work, use the proper service manual. It tells you much more about how to service the vehicle than this manual can. To order the WARNING: proper service manual, see Service Publications Ordering Information on page 7 10.

  • Page 154: Engine Fan Breakage

    Engine Fan Breakage WARNING: (Continued) WARNING: Winter Fronts, Grille Covers, or Obstructions: Winter Fronts, grille covers, or other add-on Changing the Fan Drive Ratio or Engine equipment causing obstructions in front of or Governed Speed: behind the fan should not be used on this vehicle. If you change the fan drive ratio or increase the If this causes the fan to eventually break apart governed speed of the engine, you might increase...
  • Page 155 Fuel What Fuel to Use in The U.S. Notice: Use of diesel fuel other than Ultra Low Diesel Engine Fuel Sulfur Diesel (15 ppm sulfur maximum) will cause permanent damage to the DPF and related Notice: Diesel fuel or fuel additives not components.
  • Page 156 In the United States, for best results use No. 2-D diesel Because of the cleansing properties of biodiesel, fuel year-round (above and below freezing conditions) switching from straight diesel to a biodiesel blend can as oil companies blend No. 2-D fuel to address climate prematurely restrict the fuel filter with normal deposits in differences.

  • Page 157: What Fuel To Use In Canada And Mexico

    What Fuel to Use in Canada Canadian fuels are blended for seasonal changes. Diesel Type A fuel is blended for better cold weather and Mexico starting (below 18°C or 0°F); however, you might notice some power and fuel economy loss. If Type A Notice: Use of diesel fuel other than Ultra Low fuel is used in warmer temperatures, stalling and hard Sulfur Diesel (15 ppm sulfur maximum) will cause...

  • Page 158: Very Cold Weather Operation

    Very Cold Weather Operation Notice: If there is water in the diesel fuel and the weather is warm or humid, fungus and bacteria can Follow the instructions listed previously under the grow in the fuel. They can damage the fuel system. heading What Fuel to Use.
  • Page 159 If the light comes on, use this chart to determine what Notice: Driving when this warning indicator is on, action to take. can damage the fuel injection system and the engine. If the indicator comes on right after a refuel, Problem Recommended Action it means water was pumped into the fuel tank.
  • Page 160 To replace the element, do the following: If the water-in-fuel light comes on again after driving a short distance or if the engine runs rough or stalls, a 1. Disconnect the element electrical connector from large amount of water has probably been pumped into the bowl.
  • Page 161 For vehicles with cruise control, you can prime the 6. Use the palm of your hand to repeatedly press and vehicle and remove the air from the fuel system. The release the plunger at the top of the fuel filter following procedure shows how: priming pump.

  • Page 162: Running Out Of Fuel

    Running Out of Fuel The service engine soon light may come on if the vehicle has run out of fuel. This light may stay on for a If the diesel engine stalls and you think that you have few drive cycles after the condition is corrected, but will run out of fuel, do this to restart the engine: eventually clear itself.

  • Page 163: Filling A Portable Fuel Container

    lamp to light and may damage the fuel tank and WARNING: emissions system. See Malfunction Indicator Lamp on page 3 31. Filling a Portable Fuel Container Fuel can spray out on you if you open the fuel cap too quickly. If you spill fuel and then something ignites it, you could be badly burned.

  • Page 164: Checking Things Under The Hood

    Checking Things Under In order to get an accurate reading, the engine should be at normal operating temperature, so that the oil is the Hood warm, and the vehicle must be on level ground. 1. If the engine is at normal operating temperature Engine Oil and the oil is warm, turn off the engine and allow at least five minutes for the oil to drain back into the...
  • Page 165 When to Add Engine Oil This section explains what kind of oil to use. For engine oil crankcase capacity, see Capacities and Notice: Do not add too much oil. Keep the oil level Specifications on page 5 85. between the ADD (C) and FULL (B) marks on the dipstick.
  • Page 166 SAE 10W-40 or SAE 15W-40 What Kind of Engine Oil to Use SAE 10W-40 or SAE 15W-40 is best for the Look for three things: vehicle. When it is very cold, below 18°C (0°F), use SAE 5W-40 to improve cold starting. These numbers on the oil container show its viscosity, or thickness.

  • Page 167: Engine Oil Life System

    When to Change Engine Oil (Vehicles This doughnut-shaped logo (symbol) is used on Without the Engine Oil Life System) most oil containers to help you select the correct oil. Change the engine oil and filter every 24 000 km It means that the oil has (15,000 miles), or every 12 months, or every 750 hours been certified by the of engine operation, whichever occurs first.
  • Page 168 When the system has calculated that oil life has been How to Reset the Engine Oil Life diminished, indicates that an oil change is necessary. System A change engine oil light comes on. See Change Engine Oil Light on page 3 34. Change the oil as soon The Engine Oil Life System calculates when to change as possible within the next 1 000 km (600 miles) or the engine oil and filter based on vehicle use.

  • Page 169: Engine Air Cleaner/Filter

    What to Do with Used Oil Engine Air Cleaner/Filter Used engine oil contains certain elements that can be unhealthy for your skin and could even cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner.
  • Page 170 When to Inspect the Engine Air To inspect or replace the filter and reset the indicator, if equipped, do the following: Cleaner/Filter The filter change indicator will let you know when the filter should be replaced. If you are driving in dusty/dirty conditions inspect the filter each oil change.

  • Page 171: Automatic Transmission Fluid

    How to Check and What to Use WARNING: The Allison Automatic Transmission Operator's Manual that came with the vehicle shows how to check the automatic transmission fluid and what fluid to use. Operating the engine with the air cleaner/filter off can cause you or others to be burned.

  • Page 172: Hydraulic Clutch

    How to Check and What to Use determine the proper fluid to use. See Part C: Recommended Fluids and Lubricants on Check the fluid level only when your engine is off, the page 6 28. vehicle is parked on a level place, and the transmission 3.

  • Page 173: Cooling System

    Refer to the Maintenance Schedule to determine how often you should check the fluid level in your clutch WARNING: master cylinder reservoir and for the proper fluid. See Part B: Owner Checks and Services on page 6 23 and Heater and radiator hoses, and other engine Part C: Recommended Fluids and Lubricants on page 6 28 for more information.

  • Page 174: Engine Coolant

    Engine Coolant Use a 50/50 mixture of clean, drinkable water and ® DEX-COOL coolant. If using this mixture, nothing else The cooling system in the vehicle is filled with needs to be added. This mixture: ® DEX-COOL engine coolant. This coolant is designed Gives freezing protection down to 34°F ( 37°C), to remain in the vehicle for five years or 150,000 miles outside temperature.
  • Page 175 Checking Coolant The vehicle must be on a level surface when checking the coolant level. If the low coolant light comes on in the instrument panel cluster and stays on, it means you are low on engine coolant. See Low Coolant Warning Light on page 3 30 for further information.
  • Page 176 How to Add Coolant to the Surge Tank WARNING: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine. Notice: This vehicle has a specific coolant fill procedure.

  • Page 177: Engine Overheating

    Engine Overheating You will find an engine coolant temperature warning gage, as well as a low coolant warning light, on your vehicle's instrument panel. See Engine Coolant Temperature Gage on page 3 29 and Low Coolant Warning Light on page 3 30 for more information. Your vehicle also has a check gages warning light on the instrument panel.
  • Page 178 If Steam Is Coming From Your Engine If No Steam Is Coming From Your Engine WARNING: An overheat warning, along with a low coolant light, can indicate a serious problem. See Low Coolant Warning Light on page 3 30 for more information. Steam from an overheated engine can burn you If you get an engine overheat warning with no low badly, even if you just open the hood.

  • Page 179: Power Steering Fluid

    If you get the overheat warning with no sign of steam, Power Steering Fluid try this for a minute or so: See Scheduled Maintenance on page 6 5 to 1. In heavy traffic, let the engine idle in N (Neutral) determine when to check your power steering fluid.

  • Page 180: Windshield Washer Fluid

    engine for 10 seconds. This should reset the brake Adding Washer Fluid warning lights. If one or both lights stay on though, see Open the cap with the Hydraulic Brake System Warning Lights under Brake washer symbol on it. Add System Warning Light on page 3 25 for more washer fluid until the tank information.

  • Page 181: Brakes

    Fill the washer fluid tank only three-quarters full when it is very cold. This allows for fluid WARNING: expansion if freezing occurs, which could damage the tank if it is completely full. Do not add brake fluid before checking the level Do not use engine coolant (antifreeze) in or there could be too much brake fluid.
  • Page 182 Checking Brake Fluid WARNING: Apply the brake pedal several times with the ignition off. Clean one of the reservoir caps and the area around the cap, and remove it. With the wrong kind of fluid in the brake hydraulic system, the brakes might not work well. This could The fluid level should be cause a crash.
  • Page 183 Four-Wheel and Six-Wheel Drum Brake Adjustment on Air Braked Vehicles Brakes (Air Only) The vehicle has automatic slack adjusters. Every brake stop, the brakes automatically adjust for wear. Slack The brake drums should be removed and inspected adjusters should never be manually adjusted to correct each time the tires are removed for rotation or excessive brake chamber pushrod stroke.
  • Page 184 Replacing Brake System Parts Aftermarket brake linings might not meet the same stringent requirements as the original equipment linings. The braking system on a vehicle is complex. Its many Using aftermarket brake linings can affect braking parts have to be of top quality and work well together if performance, pedal feel, noise, and lining wear.
  • Page 185 Air Dryer The air compressor is used when vehicles do not have an air brake system. If the vehicle has air brakes, it will have an air dryer. The air supply for this This collects and removes dirt, moisture, or other system must be foreign matter from the air prior to entering the brake maintained by releasing...
  • Page 186 Chassis Lubrication 5-38...
  • Page 187 Item Number Item Remarks Brake Camshaft*** One fitting each (apply sparingly). Brake Caliper Rails$ For caliper rails, apply Aero Shell #5 Lubricant. Steering Column Slip Joint** One fitting. Steering Drag Link Ends One fitting each end. Steering Column U-Joints One fitting each joint. Pivot Points and Hinges Apply chassis lubricant.
  • Page 188 Item Number Item Remarks One fitting each joint; lubricate with GM Part No. Propshaft Slip Joints 1051344 Wheel Bearing Lubricant. One fitting each joint (1480 and 1550 Series); lubricate with GM Part No. 1051344 Wheel Bearing Propshaft U-joints Lubricant. Two fittings each joint (1610 Series and larger);...

  • Page 189: Battery

    Battery Vehicle Storage The vehicle has two maintenance free batteries. Refer WARNING: to the replacement number on the original battery label when a new battery is needed. Batteries have acid that can burn you and gas DANGER: that can explode. You can be badly hurt if you are not careful.

  • Page 190: Jump Starting

    Jump Starting Notice: If the other vehicle's system is not a 12-volt system with a negative ground, both vehicles can If the vehicle batteries have run down, you may want to be damaged. Only use vehicles with 12-volt systems use another vehicle and some jumper cables to start with negative grounds to jump start your vehicle.
  • Page 191 Notice: If you leave the radio or other accessories on during the jump starting procedure, they could WARNING: be damaged. The repairs would not be covered by the warranty. Always turn off the radio and other Using a match near a battery can cause battery accessories when jump starting the vehicle.
  • Page 192 6. Connect the red WARNING: positive (+) cable to the positive (+) terminal of the dead battery. Use a Fans or other moving engine parts can injure you remote positive (+) badly. Keep your hands away from moving parts terminal if the vehicle once the engine is running.
  • Page 193 9. Connect the other end of the negative ( ) cable at least 18 inches (45 cm) away from the dead battery, but not near engine parts that move. The electrical connection is just as good there, and the chance of sparks getting back to the battery is much less.

  • Page 194: Rear Axle

    3. Disconnect the red positive (+) cable from the How to Check Lubricant vehicle with the good batteries. 4. Disconnect the red positive (+) cable from the other vehicle. Rear Axle When to Check and Change Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant and when to change it.

  • Page 195: Rear Axle Shift Motor

    What to Use Cab Tilting Refer to the Maintenance Schedule to determine what Before You Tilt the Cab kind of lubricant to use. See Part C: Recommended Fluids and Lubricants on page 6 28. Most fluids and lubricants requiring regular checking can be accessed at the back of the cab.

  • Page 196: Tilting The Cab

    Tilting the Cab To tilt the cab, do the following: 1. Locate the lever pin at the rear of the cab, on the passenger's side. 2. Turn the lever pin so that the tab is aligned with the slot. Remove the lever pin.
  • Page 197 4. Pull the secondary latch lever to release the hook from the catch at the back of the cab. 5. Using the handle located at the bottom of the cab at the back, tilt the cab forward. 5-49...
  • Page 198 6. Tilt the cab all the way WARNING: forward until the cab support under the cab locks fully. A cab not properly locked in the tilted position A. Safety Lock Pin could fall, causing serious injury. To ensure that B. Cab Support the cab is securely locked in position and will not move, the safety lock pin (A) must always be inserted into the cab support (B) when the cab is...

  • Page 199: Lowering The Cab

    Lowering the Cab 2. Squeeze the lever on the cap support to When the cab is ready to be lowered, follow the release the detent. instructions below carefully. Before lowering the cab, be sure all filler caps are on properly. 1.
  • Page 200 5. Reinstall the pin and turn it to keep the primary tilt lever from moving downward. WARNING: 3. Using the handle located at the bottom of the cab toward the back, lower the cab until the hook catches and the cab is held down. An unsecured cab could move suddenly causing 4.

  • Page 201: Lifting The Front Panel

    Lifting the Front Panel 2. Then go to the front of the vehicle and lift the To access the windshield washer fluid reservoir and the panel at the center. clutch fluid reservoir, the front panel must be lifted. Use the prop rod to hold the panel open.

  • Page 202: Noise Control System

    Noise Control System 2. The use of the vehicle after such device or element of design has been removed or rendered inoperative by any person. Tampering with Noise Control Among those acts presumed to constitute tampering are System Prohibited the acts listed below. The following information relates to compliance with Insulation: federal noise emission standards for vehicles with a...

  • Page 203: Bulb Replacement

    Exhaust: Here's how to remove the wiper blade: Removal of the muffler or resonator. Removal of the exhaust pipes and exhaust pipe clamps. Removal of the DOC converter, the Diesel Particulate Filter, or the diesel exhaust gas cooler device. Bulb Replacement It is recommended that all bulbs be replaced by your dealer/retailer.

  • Page 204: Other Service Items

    Other Service Items Fuel Filter Your fuel filter is located in the engine compartment on the driver's side of the vehicle, or along the driver's side frame rail. See Fuel Filter Replacement earlier in this section for further information. Also see Scheduled Maintenance on page 6 5 for recommended service intervals.

  • Page 205: Primary Fuel Filter And Water Separator

    Primary Fuel Filter and Water Secondary Fuel Filter and Heater Separator Your vehicle may have this fuel filter and fuel heater. It is mounted on the left side of the engine. Your vehicle may have this spin-on filter. It is located on the driver's side frame rail.

  • Page 206: Front Wheel Bearings With Oil-Filled Hubs

    Front Wheel Bearings with If your vehicle has oil-filled hubs, Oil-Filled Hubs occasionally check to see if they have enough oil. Notice: If you drive your vehicle through deep water You can tell if there is oil that is higher than the front or rear axle, water may there by using the circular enter the axle housing and cause the axle lubricant gage on the sight glass.

  • Page 207: Tires

    Tires WARNING: (Continued) Your new vehicle comes with high-quality tires made by a leading tire manufacturer. If you ever Underinflated tires pose the same danger have questions about your tire warranty and as overloaded tires. The resulting where to obtain service, see your vehicle accident could cause serious injury.

  • Page 208: Inflation - Tire Pressure

    Inflation - Tire Pressure If your tires have too much air (over-inflation), you can get the following: Tires need the correct amount of air pressure to operate Unusual wear effectively. The Certification or Tire Information label shows the correct inflation pressures for your tires when Poor handling they are cold.

  • Page 209: Wheel Loading

    If the inflation pressure is low, add air until you reach the recommended amount. If you overfill the tire, WARNING: release air by pushing on the metal stem in the center of the tire valve. Re-check the tire pressure with the If you operate your vehicle with a tire that is badly tire gage.

  • Page 210: Buying New Tires

    The tire has a puncture, cut, or other damage that cannot be repaired well because of the size or WARNING: location of the damage. The rubber in tires degrades over time, even if they are Mixing tires on the same axle could cause you to not being used.

  • Page 211: Wheel Alignment And Tire Balance

    Wheel Alignment and Tire Balance First, use these pictures to decide what kind of wheels you have. The wheels on your vehicle were aligned at the factory to give you the longest tire life and best overall performance. Proper front wheel alignment must be maintained in order to ensure efficient steering, good directional stability, and prevent abnormal tire wear.
  • Page 212 3. Put on the wheel nuts. 4. Finger-tighten the nuts. 5. Oil the surfaces (B) between the nuts (C) and washers (A). Do not oil the studs or the threads of the nut. 8-Hole 6. Tighten the nuts to 400 lb ft (540 ) if an 8-hole stud or 475 lb ft (640 ) if a 10-hole stud, using...
  • Page 213 Notice: Improperly tightened wheel nuts can lead to WARNING: brake pulsation and rotor damage. To avoid expensive brake repairs, evenly tighten the wheel nuts in the proper sequence and to the proper Never use oil or grease on studs or the threads of torque specification.

  • Page 214: Wheel Replacement

    Wheel Replacement WARNING: Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, replace the wheel, wheel bolts, and wheel nuts. If the Rust or dirt on a wheel, or on the parts to wheel leaks air, replace it.
  • Page 215 Used Replacement Wheels WARNING: WARNING: A leaking wheel could fail without warning. A wheel designed for tubeless tires could be Putting a used wheel on the vehicle is dangerous. leaking because it is damaged. Do not use an You cannot know how it has been used or how far inner tube or some other thing to try to stop the it has been driven.

  • Page 216: If A Tire Goes Flat

    If a Tire Goes Flat WARNING: It is unusual for a tire to blowout while you are driving, especially if you maintain your tires properly. If air goes out of a tire, it is much more likely to leak out slowly. But Your vehicle, when new, did not include tire if you should ever have a blowout, here are a few tips changing equipment or a place to store a tire in...

  • Page 217: Appearance Care

    should be removed as quickly as possible. Your WARNING: vehicle's interior may experience extremes of heat that could cause stains to set rapidly. Lighter colored interiors may require more frequent If you try to put air back into a tire that has run cleaning.

  • Page 218: Fabric/Carpet

    Your dealer/retailer has a product for cleaning your Fabric/Carpet vehicle's glass. Should it become necessary, you can Use a vacuum cleaner with a soft brush attachment also obtain a product from your dealer'/retailer to frequently to remove dust and loose dirt. A canister remove odors from your vehicle's upholstery.

  • Page 219: Instrument Panel, Vinyl, And Other Plastic

    If any of the soil remains, a commercial fabric cleaner or Some commercial products may increase gloss on the spot lifter may be necessary. When a commercial instrument panel. The increase in gloss may cause upholstery cleaner or spot lifter is to be used, test a annoying reflections in the windshield and even make it small hidden area for colorfastness first.

  • Page 220: Washing Your Vehicle

    Washing Your Vehicle High pressure car washes may cause water to enter the vehicle. Avoid using high pressure washes closer than The best way to preserve the vehicle's finish is to keep 12 inches (30 cm) to the surface of the vehicle. Use of it clean by washing it often.

  • Page 221: Windshield And Wiper Blades

    Notice: Machine compounding or aggressive Use special care with aluminum trim. To avoid polishing on a basecoat/clearcoat paint finish may damaging protective trim, never use auto or chrome damage it. Use only non-abrasive waxes and polish, steam or caustic soap to clean aluminum. polishes that are made for a basecoat/clearcoat A coating of wax, rubbed to high polish, is paint finish on the vehicle.

  • Page 222: Aluminum Wheels

    Aluminum Wheels Tires The vehicle may have aluminum wheels. To clean the tires, use a stiff brush with tire cleaner. Notice: If you use strong soaps, chemicals, Notice: Using petroleum-based tire dressing abrasive polishes, cleaners, brushes, or cleaners products on the vehicle may damage the paint finish that contain acid on aluminum or chrome-plated and/or tires.

  • Page 223: Finish Damage

    Finish Damage Chemical Paint Spotting Any stone chips, fractures or deep scratches in the Some weather and atmospheric conditions can create a finish should be repaired right away. Bare metal will chemical fallout. Airborne pollutants can fall upon and corrode quickly and may develop into major repair attack painted surfaces on the vehicle.

  • Page 224: Vehicle Identification

    Vehicle Identification Electrical System Vehicle Identification Number (VIN) Add-On Electrical Equipment Notice: Do not add anything electrical to the vehicle unless you check with your dealer/retailer first. Some electrical equipment can damage the vehicle and the damage would not be covered by the vehicle's warranty.

  • Page 225: Fusible Links

    Fusible Links Power Windows and Other Power Options A fusible link is a short piece of wire that is covered by an insulated cover. It is several gage sizes smaller than Circuit breakers in the fuse panel protect the power the circuit it protects.

  • Page 226: Instrument Panel Fuse Block

    Instrument Panel Fuse Block If you ever have a problem on the road and don't have a spare fuse, you can borrow one of the correct value. Just pick some feature of your vehicle that you can get along without, like the radio or cigarette lighter, and use its fuse if it is the value you need.
  • Page 227 5-79...
  • Page 228 Fuses Usage Fuses Usage Ignition Switch Auxiliary (Battery Direct) Cigar Lighter, Radio, Meter Driver Side Headlamp Engine Control Module, Ignition 1 Passenger Side Headlamp Transmission Control Module, Headlamp Ignition, Chime Heated Fuel Assembly Line Data Link Connector Meter Transmission Control Module Warning Lamp, Ignition Relay, Identification Lamp, Marker Lamp, Blower Motor, Motor Relay, Auxiliary...

  • Page 229: Maxi-Fuse Block

    Maxi-Fuse Block Do not use maxi-fuses of higher amperage than those indicated on the maxi-fuse block. When a fuse goes out, first check the instrument panel Fuses Usage fuse block. If there are no fuses out, the problem could be in the maxi-fuse block. Stoplamp, Turn Signals/Hazard ST/TURN/HAZ Warning Flashers...

  • Page 230: Relay Center

    Relay Center Relay Block A Relay Block A Usage Power Window (If Equipped) Power Main (ECU) High Beam There are four relay blocks in the vehicle: Lighting A. Relay Block A Lighting (Low, High) B. Relay Block B Trailer Turn Signal (Left Headlamp) C.
  • Page 231 Relay Block B Usage Air Conditioning Condenser (If Equipped) Air Conditioning Compressor (If Equipped) Heater Fan Ignition (Accessory) Ignition (1) Ignition (2) Auxiliary Relay Block B Horn Ignition (3) Dome Lamp (If Equipped) Starter Cut Power Take-Off Control (If Equipped) 5-83...
  • Page 232 Relay Block D Relay Block C Relay Block D Usage Relay Block C Usage Neutral (Medium Duty Transmission) Parking Brake Back-up Lamp (Reverse) (Medium Duty Transmission) Daytime Running Lamps (DRL) On (Engine Run) Daytime Running Lamps (DRL) Off (Parking) Parking Lamps/Daytime Running Lamps (DRL) Fuel Filter (Heated Fuel) Stop Lamp...

  • Page 233: Capacities And Specifications

    Capacities and Specifications The following approximate capacities are given in English and metric conversions. See Part C: Recommended Fluids and Lubricants on page 6 28 for more information. Capacities and Specifications Capacities Application English Metric For the air conditioning system refrigerant charge amount, see the refrigerant caution label located Air Conditioning Refrigerant R134a under the hood.
  • Page 234 Capacities and Specifications (cont'd) Capacities Application English Metric ¹Single 50-gallon (189 L) tanks. Not applicable to 4X2 vehicles with 128 inch or 140 inch wheelbases and not applicable to 6x4 vehicles with a 152 inch wheelbase. ²One 25-gallon (94.6 L) tank and one 50-gallon (189.2 L) tank. Available only on 4x2 vehicles with 128 inch or 140 inch wheelbases or 6x4 vehicles with a 152 inch wheelbase.
  • Page 235 Capacities and Specifications (cont'd) Capacities Application English Metric MD 3000; MD 3500 with PTO Provision 59.8 pt 28.1 L MD 3000; MD 3500 without PTO Provision 52.0 pt 24.6 L *Add 2 pints (1 L) when changing spin-on or remote filter. See the Allison Automatic Transmission Operator's Manual for fluid check and maintenance information.

  • Page 236: Normal Maintenance Replacement Parts

    Normal Maintenance Replacement Parts Maintenance Replacement Parts Part Part Number Air Compressor Filter (Haldex Air Compressor) 100696-E¹ Engine Air Cleaner/Filter P533930² Fuel Filter Chassis Mounted 15618921 Engine Mounted 98026037 Oil Filter 94037791 ¹Haldex Part Number ²Donaldson Part Number 5-88...

  • Page 237: Engine Drive Belt Routing

    Engine Drive Belt Routing Isuzu 6H Diesel Engine Belt routing for non air conditioning option shown. Dotted line shows routing for vehicles with air conditioning. 5-89...
  • Page 238 NOTES 5-90...
  • Page 239 Section 6 Maintenance Schedule Maintenance Schedule ......6-2 Scheduled Maintenance ......6-5 Introduction .

  • Page 240: Maintenance Schedule

    Maintenance Schedule Maintenance Requirements Maintenance intervals, checks, inspections and Introduction recommended fluids and lubricants as prescribed in this manual are necessary to keep this vehicle in good Important: Keep engine oil at the proper level and working condition. Any damage caused by failure to change as recommended.

  • Page 241: How This Section Is Organized

    How This Section is Organized To purchase service information, see Service Publications Ordering Information on page 7 10. This maintenance schedule is divided into four parts: Part B: Owner Checks and Services tells what Part A: Scheduled Maintenance Services explains should be checked and when.

  • Page 242: Part A: Scheduled Maintenance Services

    Part A: Scheduled Maintenance When you go to your dealer/retailer for service, trained and supported service people will perform the work Services using genuine parts. In this part are scheduled maintenance services which The proper fluids and lubricants to use are listed in are to be performed at the mileage intervals specified.

  • Page 243: Scheduled Maintenance Supplements

    Scheduled Maintenance 12 000 km (7,500 Miles) Supplements 1 Check fluid levels (or every 3 months, whichever occurs first). (1) (5) ® If the vehicle has an Allison Transmission , the owner 1 Chassis lubrication service (or every 6 months, ®...
  • Page 244 24 000 km (15,000 Miles) 1 Spring-to-axle U-bolts and shackle bolts service. (14) 1 Vehicles Without Engine Oil Life System Only: 1 Exhaust system service (or every 6 months, Change engine oil and filter (or every 12 months, whichever occurs first). (2) (3) (15) or every 750 hours of engine operation, whichever occurs first).
  • Page 245 1 Thermostatically controlled engine cooling fan 1 Air brake service (or every 6 months, whichever service. (3) (17) occurs first). (26) 1 Shields and underhood insulation 1 Air brake automatic slack adjuster service (or every service. (3) (4) (18) 500 hours, whichever occurs first). (27) 1 Check air brake relay valve operation and check 36 000 km (22,500 Miles) for leaks (or every month, or every 300 hours,...
  • Page 246 48 000 km (30,000 Miles) 1 Spring-to-axle U-bolts and shackle bolts service. (14) 1 Vehicles Without Engine Oil Life System Only: 1 Exhaust system service (or every 6 months, Change engine oil and filter (or every 12 months, whichever occurs first). (2) (3) (15) or every 750 hours of engine operation, whichever occurs first).
  • Page 247 1 Thermostatically controlled engine cooling fan 1 Clean air brake application valve (or every service. (3) (17) 3 months, or every 300 hours, whichever occurs first). Lubricate linkage. 1 Shields and underhood insulation service. (3) (4) (18) 1 Air brake chamber service (or every 2 months, whichever occurs first).
  • Page 248 1 Replace fuel filter (or every 750 hours of engine 1 Air brake automatic slack adjuster service (or every operation, whichever occurs first). 500 hours, whichever occurs first). (27) 1 Chassis lubrication service (or every 6 months, 1 Check air brake relay valve operation and check whichever occurs first).
  • Page 249 80 000 km (50,000 Miles) 1 Clean air brake application valve (or every 3 months, or every 300 hours, whichever occurs 1 Inspect air compressor discharge port (or every first). Lubricate linkage. 6 months or every 1,800 hours, whichever 1 Air brake chamber service (or every 2 months, occurs first.) whichever occurs first).
  • Page 250 1 Replace fuel filter (or every 750 hours of engine 1 Air brake automatic slack adjuster service (or every operation, whichever occurs first). 500 hours, whichever occurs first). (27) 1 Chassis lubrication service (or every 6 months, 1 Check air brake relay valve operation and check whichever occurs first).
  • Page 251 1 Cooling system service. Clean the cooling system 1 Rear axle air shift motor service. (9) filler cap with clean water, clean the core, pressure 1 Air intake system service (or every 24 months, test the cap and the system for proper pressure whichever occurs first).
  • Page 252 1 Check fluid levels (or every 3 months, whichever 1 Air brake chamber service (or every 2 months, occurs first). (1) (5) whichever occurs first). (28) 1 Replace fuel filter (or every 750 hours of engine 1 Air compressor dry element pleated paper air operation, whichever occurs first).
  • Page 253 1 Check air brake relay valve operation and check 1 Check fluid levels (or every 3 months, whichever for leaks (or every month, or every 300 hours, occurs first). (1) (5) whichever occurs first). 1 Replace fuel filter (or every 750 hours of engine 1 Clean air brake application valve (or every operation, whichever occurs first).
  • Page 254 1 Wheels and tires service. (13) 1 Shields and underhood insulation service. (3) (4) (18) 1 Hydraulic brake service (or every 6 months, whichever occurs first). (6) (30) 1 Rear axle air shift motor service. (9) 1 Parking brake service (or every 6 months, 1 Air intake system service (or every 24 months, whichever occurs first).
  • Page 255 1 Front axle service. (25) 320 000 km (200,000 Miles) ® ® ® 1 Rear axle service Eaton , Rockwell , Spicer ® ® ® 1 Rear axle service Eaton , Rockwell , Spicer axles (or every 12 months, whichever occurs axles (or every 12 months, whichever occurs first).
  • Page 256 Footnotes (6) = Inspect brake lines and hoses for proper hook-up, binding, leaks, cracks, chafing, etc. Inspect disc brake = The U.S. Environmental Protection Agency or the pads for wear and rotors for surface condition. Inspect California Air Resources Board has determined that the caliper assemblies.
  • Page 257 (10) = Chassis Lubrication Service: Lubricate all grease (11) = Check steering system: fittings in front suspension, front axle, and steering Look for damaged, loose, or missing parts. Inspect linkage. Do not lubricate kingpin bushings with air the steering linkage relay rod and tie rod ends for pressure equipment;...
  • Page 258 (13) = Adjust tire pressures as indicated on the (17) = With the engine off and below normal operating Certification or Tire Information label for optimum tire temperature, check to see that the thermostatically life. See Tires on page 5 59 for further details. Check controlled engine cooling fan can be rotated by hand on tires for excessive or abnormal wear or damage.
  • Page 259 (21) = Check the fuel tank, fuel cap, and fuel lines for (26) = Air brake service: damage which could cause leakage. Inspect fuel cap Inspect brake lines and hoses for proper hook-up, for correct sealing ability and any indications of binding, leaks, cracks, chafing, etc.
  • Page 260 Replace the air compressor filter element, mounted (30) = Tighten the wheel stud nuts to the specified on the cab rear bridge. For remote air compressor torque values at 160 km (100 miles). Thereafter, tighten intake service, refer to engine air cleaner filter them 1 600 km (1,000 miles) after each time the wheel is replacement.

  • Page 261: Part B: Owner Checks And Services

    Part B: Owner Checks and Services Engine Oil Level Check Notice: It is important to check the engine oil These owner checks and services should be performed regularly and keep it at the proper level. Failure to at the intervals specified to help ensure vehicle safety, keep the engine oil at the proper level can cause dependability, and emission control performance.

  • Page 262: At Least Twice A Year

    At Least Twice a Year Parking Brake Check Park on a fairly steep hill and hold the vehicle with the Wiper Blade Check parking brake only. This checks holding ability. See Inspect wiper blades for wear, cracking, Parking Brake (With Hydraulic Brakes) on page 2 23 or or contamination.

  • Page 263: Exhaust System Inspection

    3. On automatic transmission vehicles, try to start the Engine Cooling System Service engine in each gear. The starter should work only Inspect the hoses and have them replaced if they are in P (Park) or N (Neutral). If the starter works in cracked, swollen, or deteriorated.
  • Page 264 Windshield Wipers and Washers Check Glass, Mirrors, Lamps, and/or Reflectors Condition Check Check operation and condition of the wiper blades. Check the flow of the washer spray. Look for broken, scratched, dirty, or damaged glass, mirrors, lamps, or reflectors that could reduce the view Defroster Check or visibility or cause injury.

  • Page 265: At Least Once A Year

    Underbody Inspection At Least Once a Year Corrosive materials used for ice, snow removal, and Key Lock Cylinders Service dust control can collect on the underbody. If these materials are not removed, accelerated corrosion (rust) Lubricate the key lock cylinders with the lubricant can occur on underbody parts such as fuel lines, frame, specified in Part C.

  • Page 266: Part C: Recommended Fluids And Lubricants

    Part C: Recommended Fluids and Usage Fluid/Lubricant Lubricants Windshield ® Optikleen Washer Solvent. Washer Solvent Fluids and lubricants identified below by name, part number, or specification can be obtained from your High-Temperature Grease Exhaust Brake dealer/retailer. (GM Part No. U.S. 1051344, in Ball Joint Cap Canada 903037) or NLGI #3 Usage...
  • Page 267 Usage Fluid/Lubricant Usage Fluid/Lubricant Chassis Lubricant Wheel bearing lubricant meeting (GM Part No. U.S. 12377985, in requirements of NLGI #2, Chassis Propshafts and Canada 88901242) or lubricant Category GC or GC-LB Lubrication Splines meeting requirements of NLGI #2, (GM Part No. U.S. 1051344, in Category LB or GC-LB.

  • Page 268: Part D: Maintenance Record

    Part D: Maintenance Record After the scheduled services are performed, record the date, odometer reading and who performed the service, and any additional information from Owner Checks and Services on the following record pages. Also, you should retain all maintenance receipts. Maintenance Record Miles/km Or Maintenance Record...
  • Page 269 Maintenance Record (cont'd) Miles/km Or Maintenance Record Date Serviced By Hours 6-31...
  • Page 270 Maintenance Record (cont'd) Miles/km Or Maintenance Record Date Serviced By Hours 6-32...
  • Page 271 Section 7 Customer Assistance Information Customer Assistance and Information ... 7-2 Reporting Safety Defects ......7-9 Customer Satisfaction Procedure .

  • Page 272: Customer Assistance And Information

    GM of Canada Customer Communication Centre in Your satisfaction and goodwill are important to your Oshawa at 1-800-263-3777 (English), dealer and to GMC. Normally, any concerns with the or 1-800-263-7854 (French). sales transaction or the operation of the vehicle will be We encourage you to call the toll-free number in order resolved by the dealer's sales or service departments.

  • Page 273: Customer Assistance For Text Telephone (Tty)

    To assist customers who are deaf, hard of hearing, available to you. or speech-impaired and who use the Text Telephones (TTYs), GMC has TTY equipment available at its Customer Assistance Center. Any TTY user can communicate with GMC by dialing: 1-800-GMC-8583 (462-8583).

  • Page 274: Customer Assistance Offices

    Customer Assistance Offices Canada Customer Assistance General Motors of Canada Limited GMC encourages customers to call the toll-free number Customer Communication Centre, CA1-163-005 for assistance. However, if a customer wishes to write 1908 Colonel Sam Drive or e-mail, refer to the addresses below.

  • Page 275: Gm Mobility Reimbursement Program

    GM Mobility Reimbursement Roadside Assistance Program Program GM Medium Duty truck's Roadside Assistance provides stranded owner/operators with towing service for disabled GM Medium Duty trucks, during the base and/or engine warranty period, to the nearest authorized GM Medium Duty dealer. This service combines the efforts of trained telephone representatives with a network of GM Medium Duty truck services.

  • Page 276: Collision Damage Repair

    Canadian Roadside Assistance Recycled original equipment parts may also be used for repair. These parts are typically removed from vehicles Whenever a Medium Duty truck owned and operated in that were total losses in prior crashes. In most cases, Canada becomes disabled, the owner/operator should the parts being recycled are from undamaged sections contact the Canadian Roadside Assistance Center at of the vehicle.
  • Page 277 Insuring Your Vehicle If a Crash Occurs Protect your investment in your GM vehicle with Here is what to do if you are involved in a crash. comprehensive and collision insurance coverage. There Check to make sure that you are all right. If you are significant differences in the quality of coverage are uninjured, make sure that no one else in your afforded by various insurance policy terms.
  • Page 278 Gather the important information you will need from Managing the Vehicle Damage Repair the other driver. Things like name, address, phone Process number, driver's license number, vehicle license plate, vehicle make, model and model year, In the event that your vehicle requires damage repairs, Vehicle Identification Number (VIN), insurance GM recommends that you take an active role in its company and policy number, and a general...

  • Page 279: Reporting Safety Defects

    Reporting Safety Defects Reporting Safety Defects to the Canadian Government Reporting Safety Defects to the If you live in Canada, and you believe that your United States Government vehicle has a safety defect, notify Transport Canada immediately, in addition to notifying General Motors of If you believe that your vehicle has a defect which Canada Limited.

  • Page 280: Service Publications Ordering Information

    In Canada, please call us at 1-800-263-3777 (English) In-Portfolio: Includes a Portfolio, Owner Manual, and or 1-800-263-7854 (French). Or, write: Warranty Booklet. General Motors of Canada Limited RETAIL SELL PRICE: $35.00 (U.S.) plus processing fee Customer Communication Centre, CA1-163-005 Without Portfolio: Owner Manual only. 1908 Colonel Sam Drive RETAIL SELL PRICE: $25.00 (U.S.) plus processing fee Oshawa , Ontario L1H 8P7...

  • Page 281: Vehicle Data Recording And Privacy

    Vehicle Data Recording and to vehicle dynamics and safety systems for a short period of time, typically 30 seconds or less. The EDR in Privacy this vehicle is designed to record such data as: How various systems in your vehicle were Your GM vehicle has a number of sophisticated operating computers that record information about the vehicle s...

  • Page 282: Onstar

    GM will not access this data or share it with others Radio Frequency except: with the consent of the vehicle owner or, if the Identification (RFID) vehicle is leased, with the consent of the lessee; in response to an official request of police or similar RFID technology is used in some vehicles for functions government office;...

  • Page 283: Automatic Transmission

    Appearance Care (cont.) Instrument Panel, Vinyl, and Other Plastic Accessories and Modifications ..... . .5-3 Surfaces ........5-71 Add-On Electrical Equipment .
  • Page 284 Battery ..........5-41 Cab Tilting Belt Routing, Engine .
  • Page 285 Child Restraints Clock, Setting ........3-40 Infants and Young Children .
  • Page 286 Diesel Engine ........2-16 Engine Alarm and Automatic Shutdown .
  • Page 287 Engine (cont.) Flat Tire ......... . . 5-68 High Idle System .
  • Page 288 Heater ..........3-17 Engine Coolant .
  • Page 289 Lights (cont.) Exhaust Brake Indicator ......3-35 Keys ..........2-2 Flash-to-Pass .
  • Page 290 Mirrors Manual Rearview ....... . . 2-33 Maintenance Schedule Outside Convex Mirrors ......2-33 At Each Fuel Fill .
  • Page 291 OnStar, Privacy ........7-12 Power Other Service Items Auxiliary Jacks .
  • Page 292 Rear Reading Lamps ......3-15 Safety Belts (cont.) Rearview Mirrors ........2-33 Lap-Shoulder Belt .
  • Page 293 Signals, Turn and Lane-Change .....3-8 Tires (cont.) Specifications and Capacities ..... . 5-85 Tightening the Wheel Nuts .
  • Page 294 Wheels Alignment and Tire Balance ..... . 5-63 Vehicle Front Bearings with Oil-Filled Hubs ....5-58 Control .

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