GMC Duramax Diesel 2015 Owner's Manual
  1. Manuals
  2. Brands
  3. GMC Manuals
  4. Automobile
  5. Duramax Diesel 2015
  6. Owner's manual

GMC Duramax Diesel 2015 Owner's Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Advertisement

Table of Contents
loading

Related Manuals for GMC Duramax Diesel 2015

Summary of Contents for GMC Duramax Diesel 2015

  • Page 2: Table Of Contents

    2015 Chevrolet/GMC Duramax Diesel Supplement In Brief ......1-1 Vehicle Care ....10-1 Initial Drive Information .
  • Page 3 47911 Halyard Drive substitute the name General sections in this manual correspond Plymouth, MI 48170 Motors of Canada Limited for GMC to the sections in your owner and Chevrolet Motor Division manual. This manual, along with wherever it appears in this manual.
  • Page 4 Introduction Using this Supplement This supplement contains information specific to the unique components of the vehicle. It does not explain everything you need to know about the vehicle. Read this supplement along with the owner manual to learn about the vehicle's features and controls.
  • Page 5 Introduction NOTES...

  • Page 6: In Brief

    In Brief In Brief Initial Drive For areas where ambient temperatures are below 40°C Information ( 40°F), use synthetic transmission fluid approved to Allison Initial Drive Information ® Transmission Transmission specification Transmission ....1-1 TES-295.

  • Page 7: Performance And Maintenance

    In Brief Heater Performance Mode Performance and computer will initiate a cleaning action by warming the exhaust gas When cold weather conditions are Maintenance temperature. This feature has been detected, the transmission raises designed to operate automatically, part throttle upshift points after the Engine Oil Life System with limited operator involvement or 1 (First) to 2 (Second) upshift to...
  • Page 8 Non-highway fuel is not intended for DEF can be purchased at a in the instrument cluster and the use in on-highway vehicles and Chevrolet or GMC dealer. It can DIC will display the message also be purchased at authorized ENGINE POWER IS REDUCED.
  • Page 9 In Brief Additionally, some diesel truck fueling stations or retailers may have DEF for purchase. For ® vehicles with an active OnStar subscription, OnStar can help to locate a DEF retailer. See Customer Assistance Offices in the owner manual for phone numbers to assist you in contacting a GM dealer.

  • Page 10: Instruments And Controls

    Instruments and Controls Instruments and Diesel Particulate Filter Messages ....5-14 Controls Service Vehicle Messages . . . 5-14 Starting the Vehicle Messages ....5-15 Vehicle Speed Messages .

  • Page 11: Indicators

    Instruments and Controls Warning Lights, Gauges, and Indicators Instrument Cluster English Base Level Pickup Shown, Metric Similar...
  • Page 12 Instruments and Controls English Uplevel Pickup Shown, Metric Similar...
  • Page 13 Instruments and Controls English Denali Pickup Shown, Metric Similar...
  • Page 14 Instruments and Controls English Van Shown, Metric Similar...

  • Page 15: Instruments And Controls

    Instruments and Controls See the owner manual for warning lights and gauges not listed in this supplement. Fuel Gauge English Pickup Models English Van Models When the ignition is on, the fuel gauge shows approximately how much fuel the vehicle has left in the tank.
  • Page 16 Instruments and Controls Listed are four situations customers Engine Oil Pressure may experience with the fuel gauge: Gauge At the gas station, the fuel pump shuts off before the gauge reads F (Full). It takes a little more or less fuel to fill up than the fuel gauge indicated.

  • Page 17: Malfunction Indicator Lamp

    Instruments and Controls Malfunction Caution (Continued) Indicator Lamp low, have the vehicle serviced. A computer system called OBD II Always follow the maintenance (On-Board Diagnostics-Second schedule for changing engine oil. Generation) monitors the operation of the vehicle to ensure emissions are at acceptable levels, helping to The engine oil pressure gauge maintain a clean environment.
  • Page 18 Instruments and Controls This light may also come on when An emission system malfunction Caution the Diesel Exhaust Fluid (DEF) might be corrected by using good management system is not working. quality fuel. Poor fuel quality causes Modifications made to the engine, See Diesel Exhaust Fluid on the engine not to run as efficiently transmission, exhaust, intake,...

  • Page 19: Wait-To-Start Light

    5-10 Instruments and Controls The OBD II (On-Board emission system test equipment will Wait-to-Start Light Diagnostics) system determines likely connect to the vehicle's Data that critical emission control Link Connector (DLC). systems have not been completely diagnosed. The vehicle would be considered not ready for inspection.

  • Page 20: Information Displays

    Instruments and Controls 5-11 Diesel Exhaust Fluid Power Take-Off Light Information Displays (DEF) Warning Light Driver Information Center (DIC) The DIC is in the instrument cluster. The DIC comes on when the ignition is on. Non-Denali Pickups A Duramax diesel vehicle may have The vehicle may have a Power the following additional DIC menu This light, a Driver Information...

  • Page 21: Vehicle Messages

    5-12 Instruments and Controls FUEL FILTER LIFE REMAINING FUEL FILTER LIFE RESET Vehicle Messages This display shows an estimate of You must reset the FUEL FILTER The Driver Information Center (DIC) the fuel filter's remaining useful life. LIFE REMAINING display after each will display warning messages if a If you see 90% FUEL FILTER LIFE fuel filter change.

  • Page 22: Engine Power Messages

    Instruments and Controls 5-13 Engine Cooling System This message clears itself after WATER IN FUEL SERVICE 10 seconds, until the next ignition REQUIRED Messages cycle. See Engine Oil on page 10-6. This message will come on to warn COOLANT LEVEL LOW ADD you if there is water in the diesel Engine Power Messages COOLANT...

  • Page 23: Service Vehicle Messages

    5-14 Instruments and Controls displays at approximately 1 600 km Diesel Particulate Filter Service Vehicle Messages (1,000 mi) of fluid range remaining, Messages SERVICE EXHAUST FLUID the fluid is approximately 11 L (3 gal) low. SYSTEM SEE OWNERS CLEANING EXHAUST FILTER MANUAL NOW CONTINUE DRIVING (Uplevel EXHAUST FLUID LOW SPEED...

  • Page 24: Vehicle Speed Messages

    Instruments and Controls 5-15 Starting the Vehicle Vehicle Speed Messages vehicle speed will be limited to 88 km/h (55 mph) when the Messages For more information on these countdown is over. messages, see Diesel Exhaust Fluid ELEVATED IDLE OFF XXX KM (MI) UNTIL 7 KM/H on page 9-13.

  • Page 25: Vehicle Personalization

    5-16 Instruments and Controls SPEED LIMITED TO 88 KM/H TRANSITIONING TO XX KM/H Vehicle (55 MPH) (XX MPH) MAX SPEED Personalization This message will be displayed This message will be displayed along with other messages. These along with other messages. These Vehicle Personalization messages include EXHAUST FLUID messages include EXHAUST FLUID...
  • Page 26 Instruments and Controls 5-17 3. Turn the MENU knob to scroll to Elevated Idle (If Equipped) Turn the MENU knob to scroll to SETTINGS, then press the one of the following menu This allows the feature to be turned MENU knob. selections: on and off.
  • Page 27 5-18 Instruments and Controls Turn the MENU knob to the desired PTO Standby Set 2 setting. Press the MENU knob to select the desired setting. PTO TAP STEP SPEED This feature is available if the vehicle is configured for Stationary Variable or Mobile PTO, and allows the selection of the PTO tap step speed.

  • Page 28: Driving And Operating

    Driving and Operating Driving and Water in Fuel ....9-28 Starting and Running Out of Fuel ..9-33 Operating Operating Fuel Filter Replacement .
  • Page 29 Driving and Operating most diesel engines, due to the Cold Weather Starting (Diesel Caution rapid heating of the glow plug Engine) system. Do not try to shift to P (Park) if the Use the recommended engine oil when the outside temperature drops vehicle is moving.
  • Page 30 Driving and Operating If the vehicle is not out of fuel, and Be sure you are using the proper and engine warmup. These speeds the engine will not start: fuel for existing weather conditions. can range from approximately 600 See Fuel for Diesel Engines on to 1000 rpm.
  • Page 31 Driving and Operating If this method is not available, see The high idle speed will be Fast Idle Control the alternate method for truck temporarily interrupted and the The vehicle may have this system models in Vehicle Personalization engine speed will return to normal if which can be used to increase the (Truck Models) on page 5-16.

  • Page 32: Winter Cover

    Driving and Operating Fast Idle control will be disabled Winter Cover Usage Guidelines when one or more of the following The winter cover should only be If equipped, the winter cover can be conditions occur: used while operating the vehicle in used to enhance heater The cruise control Set switch is extremely cold temperatures or in...
  • Page 33 Driving and Operating Keep the underside of the winter Installation (Chevrolet Pickup) cover as clean as possible. Remove monthly or as necessary and clean away dust and debris. Use only a mild soap to clean. Do not use harsh soap, strong detergents, or vinyl protectant/ sealant type products as they may damage the special finish.
  • Page 34 Driving and Operating Installation (GMC Pickup) 1. The white label must be at the top and back of the cover. 2. Starting in the middle, attach 3. To remove, reverse the steps fastening points as illustrated. listed previously.
  • Page 35 Driving and Operating Installation (Van Models) 1. Open the hood and secure it with the prop rod. 2. Starting in the middle, attach 3. To remove, reverse the steps fastening points as illustrated. listed previously.

  • Page 36: Engine Heater

    Driving and Operating 4. Attach the metal hooks, one each at the top corners. 5. To remove the winter cover, reverse the steps listed previously. Engine Heater The engine coolant heater can provide easier starting in cold weather conditions at or below 18°C (0°F).
  • Page 37 9-10 Driving and Operating Warning Warning (Continued) overheat and cause a fire, Improper use of the heater cord property damage, electric or an extension cord can damage shock, and injury. the cord and may result in overheating and fire. Do not operate the vehicle with the heater cord Plug the cord into a permanently attached to the...

  • Page 38: Fuel Operated

    Driving and Operating 9-11 5. Before starting the engine, be driver side of the vehicle and uses Caution sure to unplug and store the diesel fuel to heat the engine cord as it was before to keep it coolant, which warms up the Do not use the engine heater away from moving engine parts, passenger cabin air.

  • Page 39: Diesel Particulate Filter

    9-12 Driving and Operating Diesel Particulate Caution Warning Filter Permanent damage can occur to During DPF self cleaning or The vehicle has a Diesel Particulate the DPF or related components if during extended idling in P (Park), Filter (DPF) as part of the exhaust the required Ultra Low Sulfur the exhaust system and exhaust system to reduce vehicle emissions.

  • Page 40: Diesel Exhaust Fluid

    Driving and Operating 9-13 See Malfunction Indicator Lamp on Diesel Exhaust Fluid Caution (Continued) page 5-8 and Engine Power Messages on page 5-13. During extended idle operation, Warning Vehicles with DPF have specific fuel monitor the instrument cluster and engine oil requirements. See Diesel Exhaust Fluid (DEF) is telltale lights and Driver What Fuel to Use in The U.S.
  • Page 41 DEF can be purchased at a 7.6 L (2 gal) of fluid to release the Chevrolet or GMC dealer. It can vehicle from speed limitation. also be purchased at authorized vehicle and truck dealerships.
  • Page 42 Driving and Operating 9-15 Exhaust Fluid Level in Driver If DEF is added under freezing Information Center (DIC) on conditions, additional time may be page 5-11. required to remove speed limitations and may require less fluid to fill the To avoid vehicle speed limitations, DEF tank.
  • Page 43 9-16 Driving and Operating If these warnings are ignored and After the transition to 105 km/h also come on. Vehicle speed will be the DEF tank becomes empty, the (65 mph) is complete, the DIC reduced to a maximum speed limit DIC message displays: message displays: of 89 km/h (55 mph).
  • Page 44 Driving and Operating 9-17 For emergency vans with RPO (4 MPH) displays. A flashing After the transition to 105 km/h YF2 or emergency pickups with warning light and a chime also (65 mph) is complete, the DIC RPO ANM, EXHAUST FLUID come on.
  • Page 45 9-18 Driving and Operating When the mileage countdown is A flashing warning light and a chime 998 KM (620 MI) UNTIL zero, the DIC message EXHAUST also come on. Vehicle speed will be 105 KM/H (65 MPH) MAX FLUID QUALITY POOR - SEE reduced to a maximum speed limit SPEED.
  • Page 46 Driving and Operating 9-19 After the transition to 105 km/h (55 MPH) MAX SPEED displays. After the transition to 7 km/h (4 mph) (65 mph) is complete, a DIC A flashing warning light and a chime is complete, the DIC message message displays: also come on.

  • Page 47: Brakes

    9-20 Driving and Operating When the mileage countdown is When the mileage countdown is Brakes zero, the DIC message SERVICE zero, the DIC message SERVICE EMISSION SYSTEM - SEE EMISSION SYSTEM - SEE Exhaust Brake OWNERS MANUAL NOW - OWNERS MANUAL NOW - TRANSITIONING TO 105 KM/H TRANSITIONING TO 89 KM/H The heavy duty diesel pickups have...

  • Page 48: Fuel For Diesel Engines

    Driving and Operating 9-21 active. A light in the switch will slowing. The system delivers the Fuel come on when the exhaust brake is correct amount of braking to assist activated. in vehicle control. The heavier the Fuel for Diesel Engines vehicle load, the more active the The Driver Information Center (DIC) engine exhaust brake will be.

  • Page 49: What Fuel To Use In

    9-22 Driving and Operating Some conditions, such as dirty fuel, Use diesel fuel that meets ASTM Caution (Continued) may decrease fuel filter life and a specification D 975, Grades No. 2-D CHANGE FUEL FILTER message or No. 1-D S15, also known as Ultra Diesel fuel has been mixed may come on in the Driver Low Sulfur Diesel.
  • Page 50 Driving and Operating 9-23 however, it will reduce power and Biodiesel Biodiesel blends fuel economy. Avoid using No. 1-D Use biodiesel blends that meet the Biodiesel is a renewable fuel diesel fuel in warm or hot climates. ASTM specification D6751. produced from vegetable oils or It can result in stalling, poor starting animal fats that have been...
  • Page 51 9-24 Driving and Operating Pumps dispensing more than Biodiesel quality can vary widely. 5% and up to 20% biodiesel are To reduce the risk of poor quality required to be labeled with the fuel, purchase biodiesel blends concentration of biodiesel. When from a BQ-9000 certified refueling with a biodiesel blend marketer.
  • Page 52 Driving and Operating 9-25 Biodiesel fuel quality degrades At temperatures below 32 °F Vehicles operated for extended with time and exposure to high (0 °C), it is recommended to periods of time on Ultra Low temperature quicker than Ultra switch to Ultra Low Sulfur Diesel Sulfur Diesel fuel and then Low Sulfur Diesel fuel.

  • Page 53: What Fuel To Use In Canada

    9-26 Driving and Operating Refueling Accidental Refueling with What Fuel to Use in Canada Gasoline Diesel fuel can foam when filling the Use diesel fuel that meets tank. This can cause the automatic CAN/CGSB-3.517 specification in Caution pump nozzle to shut off, even if the Canada.
  • Page 54 Driving and Operating 9-27 higher temperatures experienced Refueling Caution during most of the year. Avoid using Diesel fuel can foam when filling the Diesel Type A fuel in warm or hot tank. This can cause the automatic Do not use home-made biodiesel climates.

  • Page 55: Cold Weather Operation

    9-28 Driving and Operating Accidental Refueling with It is recommended to use Ultra Low Caution Gasoline Sulfur No. 1-D diesel fuel or a blend of No. 1-D and No. 2-D diesel fuel to Use of diesel fuel other than Ultra enhance vehicle operation in cold Caution Low Sulfur Diesel (15 ppm sulfur...
  • Page 56 Driving and Operating 9-29 Water in Fuel Troubleshooting Recommended Caution Problem Action If the WATER IN FUEL SERVICE REQUIRED message comes on: Water in the diesel fuel can Message Drain the fuel corrode internal components of Recommended displays and filter the fuel system and lead to Problem Action...
  • Page 57 9-30 Driving and Operating Recommended Caution Problem Action Driving with this message on can Immediately A large amount damage the fuel injection system after refueling, of water is in the and the engine. If the message message fuel tank. Drain comes on right after a refuel, displays and the fuel filter...

  • Page 58: Fuel Priming

    Driving and Operating 9-31 The FOH pump and FOH fuel 3. Place a container under the filter 7. Start the engine and let it run for lines were removed or drain valve. The filter drain valve a few minutes. During the disconnected.
  • Page 59 9-32 Driving and Operating attempts. Allow the engine to idle for a few minutes after it starts. Check the filter for leaks. To Prime Van Models There is an electric priming pump that will bring fuel to the engine and eliminate air in the fuel lines.

  • Page 60: Running Out Of Fuel

    Driving and Operating 9-33 5. Repeat the above steps until the Running Out of Fuel engine tries to run, but does not engine starts. run smoothly, increase the rpm Pickup Models slightly by using the accelerator 6. If the engine starts, but does not pedal.

  • Page 61: Fuel Filter Replacement

    9-34 Driving and Operating The fuel operated heater (FOH) 1. Drain any water from the filter. 4. Unplug the water sensor wire stops automatically when the fuel See Removing Water from Fuel connected to the fuel filter and tank volume is less than or equal to in Water in Fuel on page 9-28.
  • Page 62 Driving and Operating 9-35 8. Reinstall and tighten the filter Fuel Filter Warning container and reconnect the 1. Apply the parking brake. water sensor wire to the filter. Diesel fuel is flammable. It could 9. Reposition the wheel liner. start a fire if something ignites it, and people could be burned.

  • Page 63: Filling The Tank

    9-36 Driving and Operating 6. Follow the vehicle fuel system 3. Remove the filter element. Filling the Tank priming procedure earlier in this If there is any dirt on the filter section to re-prime the system. sealing surface, clean it off. Warning 4.
  • Page 64 Driving and Operating 9-37 The green fuel cap is behind a Warning (Continued) Warning hinged door on the driver side of the vehicle. On van models, the blue Fuel can spray out if the fuel If a fire starts while you are diesel exhaust fluid cap is also cap is opened too quickly.

  • Page 65: Filling A Portable Fuel

    9-38 Driving and Operating Towing Caution Warning (Continued) Trailer Towing Remove the container from If your vehicle has been the vehicle, trunk, or pickup accidentally filled with gasoline, When towing at high elevation on bed before filling. do not run the engine or severe steep uphill grades, consider the engine damage can occur.
  • Page 66 Driving and Operating 9-39 Use the following chart to determine how much the vehicle can weigh, based upon your vehicle model and options. Vehicle Axle Ratio Max. Trailer Wt. GCWR * C-2500 Pickup Models Pickup Model Double Cab 3.73 7 983 kg (17,600 lb) 11 113 kg (24,500 lb) Standard Box Pickup Model Crew Cab Standard...
  • Page 67 9-40 Driving and Operating Vehicle Axle Ratio Max. Trailer Wt. GCWR * Pickup Model Double Cab Long 3.73 7 802 kg (17,200 lb) 11 113 kg (24,500 lb) Pickup Model Crew Cab Long 3.73 7 439 kg (16,400 lb) 11 113 kg (24,500 lb) C-3500 Pickup Model Double Cab Long Box Single Rear Wheels 3.73...
  • Page 68 Driving and Operating 9-41 Vehicle Axle Ratio Max. Trailer Wt. GCWR * K-3500 Pickup Model Crew Cab Standard Box Single Rear Wheels 3.73 7 757 kg (17,100 lb) 11 113 kg (24,500 lb) K-3500 Pickup Model Crew Cab Long Box Single Rear Wheels 3.73 7 666 kg (16,900 lb)
  • Page 69 9-42 Driving and Operating Vehicle Axle Ratio Max. Trailer Wt. GCWR * G3500 Passenger Van Long 3.54 4 400 kg (9,700 lb) 7 711 kg (17,000 lb) Wheelbase G3500 Cutaway Van 159 3.54 7 257 kg (16,000 lb) Wheelbase G3500 Cutaway Van 139 3.54 7 711 kg (17,000 lb) Wheelbase...

  • Page 70: Conversions And Add-Ons

    Driving and Operating 9-43 Conversions and The PTO stationary mode provides PTO Engage/Disengage both in-cab and remote controls. Conditions Add-Ons The in-cab controls are enabled as Engage Conditions the factory preset. The remote Stationary PTO Power Take-Off (PTO) controls are disabled. This factory preset configuration can be To engage stationary PTO The PTO is an upfitter integrated...
  • Page 71 9-44 Driving and Operating The vehicle speed must be less then be on steady. The SET and PTO operating speed. See than the PTO top vehicle speed +RES cruise control buttons can Variable PTO Mode and PTO limit. The default setting is then be used to establish the Switch Operation later in this 94 km/h (58 mph).
  • Page 72 Driving and Operating 9-45 Press and release the PTO In addition to these messages, the The mobile PTO mode will also in-cab switch. The engine speed PTO indicator light will indicate disengage if the following conditions will return to normal engine idle. when all conditions required to are detected by the vehicle The PTO indicator light will go...
  • Page 73 9-46 Driving and Operating Speed 2: Pressing the +/RES The stationary PTO mode will also For in-cab PTO mode, the engine position of the PTO switch disengage if any of the following speed is initially set to a stand-by results in a preset speed of conditions are detected by the engine speed (900 rpm) by pressing 1900 rpm.
  • Page 74 Driving and Operating 9-47 The variable PTO mode controls PTO Switch Operation Press and release the in-cab switch. engine speed, and PTO load The engine speed will be reduced to To engage PTO, press and release engagement is selected by either the base idle speed and the PTO the in-cab PTO switch or, press and the PTO in-cab or remote switches.
  • Page 75 9-48 Driving and Operating The transmission shift lever must RESUME: When a PTO set speed Remote Engine Start Control be in P (Park). has been achieved, press and The vehicle s PTO system allows release the brake pedal. Engine The vehicle hood must be the engine to be remotely started speed will reduce to basic idle closed.
  • Page 76 Driving and Operating 9-49 Remote Engine Shutdown engine condition is detected by be able to generate enough energy the vehicle system (i.e., low oil, or adequate heat needed to clean or Control low oil pressure, hot engine, hot regenerate the DPF. Continued The vehicle s PTO system allows for transmission, low fuel, diesel operation under conditions that do...
  • Page 77 9-50 Driving and Operating Factory Preset Parameters The following table lists the factory preset parameters. These may be altered by the service technician to configure the various PTO features. Programmable Factory Setting Minimum Value Maximum Value Parameters PTO In-cab Control ENABLED DISABLED ENABLED...
  • Page 78 Driving and Operating 9-51 Programmable Factory Setting Minimum Value Maximum Value Parameters Engine Run Time While 420 min 0 minutes 58 hours PTO is Active Timer Max. PTO Engine Speed 2100 RPM 500 RPM 3100 RPM Max. PTO Engage Speed 1500 RPM 0 RPM 1500 RPM...
  • Page 79 9-52 Driving and Operating Programmable Factory Setting Minimum Value Maximum Value Parameters Maximum Remote 100% Potentiomete Threshold Remote Set Switch SET SPEED 1 STANDBY SPEED, SET SPEED 1, or SET SPEED 2 Transition to Low Voltage (<1.66 V) Remote Set Switch PTO STANDBY STANDBY SPEED, SET SPEED 1, or SET SPEED 2 Transition to Open State...
  • Page 80 Vehicle Care 10-1 Vehicle Care General Information Damage to vehicle components resulting from modifications or the installation or use of non-GM Accessories and certified parts, including control General Information Modifications module or software modifications, is Accessories and not covered under the terms of the Adding non-dealer accessories or Modifications .
  • Page 81 10-2 Vehicle Care Aftermarket Engine The engines, transmissions, and Damage, failure, or reduced life of drivetrains have been designed and the engine, transmission, emission Performance Enhancement built to offer industry leading system, drivetrain, or other vehicle Products and Modifications durability and performance in the components caused by aftermarket Some aftermarket engine most demanding applications.

  • Page 82: Vehicle Checks

    Vehicle Care 10-3 Vehicle Checks Engine Compartment Overview United States Pickup Models Shown, Canada Similar...
  • Page 83 10-4 Vehicle Care 1. Remote Positive (+) Terminal 6. Engine Oil Dipstick 12. Windshield Washer Fluid Reservoir 2. Battery 7. Engine Oil Fill Cap 13. Auxiliary Battery 3. Coolant Surge Tank and 8. Engine Fan (Out of View) Pressure Cap 14.
  • Page 84 Vehicle Care 10-5 United States Van Models Shown, Canada Similar...

  • Page 85: Engine Oil

    10-6 Vehicle Care 1. Battery Engine Oil Checking Engine Oil 2. Coolant Surge Tank and It is a good idea to check the engine To ensure proper engine Pressure Cap oil level at each fuel fill. In order to performance and long life, careful get an accurate reading, the oil attention must be paid to engine oil.
  • Page 86 Vehicle Care 10-7 what kind of oil to use. For engine Be sure to add enough oil to put the Warning oil crankcase capacity, see level somewhere in the proper Capacities and Specifications on operating range. Push the dipstick The engine oil dipstick handle page 12-2.
  • Page 87 10-8 Vehicle Care Caution Use only engine oils that have the designation CJ-4 for the diesel engine. Failure to use the recommended oil can damage the DPF and result in engine damage not covered by the vehicle warranty. Viscosity Grade American Petroleum Institute (API) Use SAE 15W-40 viscosity grade symbol...

  • Page 88: Engine Oil Life System

    Vehicle Care 10-9 Engine Oil Additives/Engine from the filter before disposal. Never And be sure to use the transmission dispose of oil by putting it in the fluid listed in Recommended Fluids Oil Flushes trash or pouring it on the ground, and Lubricants on page 11-8.
  • Page 89 10-10 Vehicle Care Allow the engine to run at idle Wait at least 30 minutes before engine compartment. See (500 800 rpm). Slowly release checking the transmission fluid level Engine Compartment Overview the brake pedal. if the vehicle has been driven: on page 10-3 for location.
  • Page 90 Vehicle Care 10-11 Hot Check Procedure 6. If the fluid level is in the Add fluid only after checking the acceptable range, push the transmission fluid while it is hot. The fluid must be hot to ensure an dipstick back in all the way. A cold check is used only as a accurate check.
  • Page 91 10-12 Vehicle Care When to Check and Change than 10°C (50°F), drive the vehicle Caution (Continued) until the engine temperature gauge (Van Models) moves and then remains steady for Change the fluid and filter at the hot engine parts or exhaust 10 minutes.
  • Page 92 Vehicle Care 10-13 With a foot on the brake pedal, 2. Push it back in all the way, wait What Transmission Fluid move the shift lever through three seconds, and then pull it to Use each gear range, pausing for back out again.
  • Page 93 10-14 Vehicle Care synthetic transmission fluid can Caution be used for all temperature ranges. Use of the incorrect automatic How to Add Fluid transmission fluid may damage the vehicle, and the damage may See Maintenance Schedule on not be covered by the vehicle page 11-3 to determine what kind of warranty.

  • Page 94: Engine Air Cleaner/Filter

    Vehicle Care 10-15 Engine Air Cleaner/Filter 4. Raise the air cleaner housing cover and remove the air Pickup Models cleaner/filter from the air cleaner housing. Take care to dislodge The air cleaner/filter assembly is on as little dirt as possible. the front corner of the engine compartment on the passenger side 5.
  • Page 95 10-16 Vehicle Care Van Models How to Inspect the Engine Air Warning Cleaner/Filter When the restriction indicator is in Operating the engine with the air the red/orange change zone, cleaner/filter off can cause you or replace the filter and reset the others to be burned.

  • Page 96: Cooling System

    Vehicle Care 10-17 To inspect and replace the filter and Pickup Models Warning reset the restriction indicator: 1. Loosen the screws (1) on the Operating the engine with the air cover of the housing and lift up cleaner/filter off can cause you or the cover.

  • Page 97: Engine Coolant

    10-18 Vehicle Care Van Models Engine Coolant Warning (Continued) The cooling system in the vehicle is ® Do not run the engine if there is a filled with DEX-COOL engine leak. If you run the engine, it coolant. This coolant is designed to could lose all coolant.
  • Page 98 Vehicle Care 10-19 Caution Warning Caution Using coolant other than Adding only plain water or some If improper coolant mixture, ® DEX-COOL can cause other liquid to the cooling system inhibitors, or additives are used in premature engine, heater core, can be dangerous.
  • Page 99 10-20 Vehicle Care Checking Coolant (Pickup Models) Checking Coolant (Van Models) Warning Turning the surge tank pressure cap when the engine and radiator are hot can allow steam and scalding liquids to blow out and burn you badly. Never turn the surge tank pressure cap even a little...
  • Page 100 Vehicle Care 10-21 Warning (Continued) Warning Warning (Continued) surge tank pressure cap even a You can be burned if you spill under pressure, and if you turn little when the engine and coolant on hot engine parts. the coolant surge tank pressure radiator are hot.

  • Page 101: Engine Overheating

    10-22 Vehicle Care 1. Remove the coolant surge tank By this time, the coolant level 6. Verify coolant level after the pressure cap when the cooling inside the coolant surge tank engine is shut off and the system, including the coolant may be lower.
  • Page 102 Vehicle Care 10-23 Tows a trailer. See Driving on If Steam Is Coming from the Caution Grades under Driving Engine Compartment Characteristics and Towing Tips Running the engine without in the owner manual. Warning coolant may cause damage or a If the DIC message comes on with fire.
  • Page 103 10-24 Vehicle Care If there is still no sign of steam and the vehicle is equipped with an engine driven cooling fan, push down the accelerator until the engine speed is about twice as fast as normal idle speed for at least five minutes while the vehicle is parked.
  • Page 104 Service and Maintenance 11-1 Service and General Information transportation, and online scheduling to assist with service Maintenance This maintenance section applies to needs. vehicles with a diesel engine. For Your dealer recognizes the gasoline engine vehicles, see the importance of providing maintenance schedule section in General Information competitively priced maintenance...
  • Page 105 11-2 Service and Maintenance Use the recommended fuel. See The Tire Rotation and Required Warning Fuel for Diesel Engines on Services are the responsibility of the page 9-21. vehicle owner. It is recommended to Performing maintenance work can have your dealer perform these Refer to the information in the be dangerous and can cause services every 12 000 km/7,500 mi.
  • Page 106 Service and Maintenance 11-3 Check engine coolant level. See Maintenance indicate the need for vehicle service Engine Coolant on page 10-18. for more than a year. The engine oil Schedule and filter must be changed at least Check windshield washer fluid once a year and the oil life system level.
  • Page 107 11-4 Service and Maintenance Visually inspect steering, Check starter switch. See Visually inspect gas strut for suspension, and chassis Starter Switch Check in the signs of wear, cracks, or other components for damaged, loose, owner manual. damage. Check the hold open or missing parts or signs of ability of the strut.
  • Page 108 Service and Maintenance 11-5 Maintenance Schedule Additional Required Services - Normal Rotate tires and perform Required Services. Check engine oil level and oil life percentage. Change engine oil and filter, if needed. Replace engine air cleaner filter. (1) Change automatic transmission fluid and filter. Filter is external on pickups and internal on vans.
  • Page 109 11-6 Service and Maintenance Maintenance Schedule Additional Required Services - Severe Rotate tires and perform Required Services. Check engine oil level and oil life percentage. Change engine oil and filter, if needed. Replace engine air cleaner filter. (1) Change automatic transmission fluid and filter. Filter is external on pickups and internal on vans.
  • Page 110 Service and Maintenance 11-7 Special Application The diesel fuel filter may need to be or towing a trailer for extended replaced more frequently, based on periods. The fuel filter should be Services biodiesel usage, driving in climates replaced at least every 2 years. with severe dust, off-road driving, Also, inspect and clean the fuel Severe Commercial Use...
  • Page 111 11-8 Service and Maintenance Recommended Fluids Recommended Fluids and Lubricants Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer. Usage Fluid/Lubricant Engine Oil Engine oils with the letters CJ-4 are required for your vehicle. The CJ-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL.
  • Page 112 Service and Maintenance 11-9 Usage Fluid/Lubricant ® Automatic Transmission DEXRON -VI Automatic Transmission Fluid. Allison Transmission Only: For areas where ambient temperatures are below -40 °C (-40 °F) use Synthetic Transmission Fluid approved to Allison Transmission specification TES-295 (GM Part No. 12378515, in Canada 88900701).
  • Page 113 11-10 Service and Maintenance Usage Fluid/Lubricant Hood Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in Canada 10953474). Pickup Models: Body Door Hinge Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in Pins, Tailgate Hinge and Linkage, Canada 10953474). and Fuel Door Hinge Pickup Models: Tailgate Handle Pivot Multi-Purpose Lubricant, Superlube (GM Part No.

  • Page 114: Maintenance Replacement Parts

    Service and Maintenance 11-11 Maintenance Replacement Parts Replacement parts identified below by name, part number, or specification can be obtained from your dealer. Part GM Part Number ACDelco Part Number Engine Air Cleaner/Filter Pickup Models 25945274 A3141C Van Models 20815924 A3140C Engine Fuel Filter 12646512...
  • Page 115 11-12 Service and Maintenance Maintenance Records After the scheduled services are performed, record the date, odometer reading, who performed the service, and the type of services performed in the boxes provided. Retain all maintenance receipts. Odometer Date Serviced By Services Performed Reading...
  • Page 116 Technical Data 12-1 Technical Data Vehicle Data Capacities and Specifications ....12-2 Engine Drive Belt Routing . . . 12-4...
  • Page 117 12-2 Technical Data Vehicle Data Capacities and Specifications The following approximate capacities are given in metric and English conversions. See Recommended Fluids and Lubricants on page 11-8. Capacities Application Metric English Cooling System (Pickup Models) 8 Cylinder 27.0 L 28.5 qt Cooling System (Van Models) Front Heat or AC Only 20.0 L...
  • Page 118 Technical Data 12-3 Capacities Application Metric English Transmission Fluid (Pan Removal and Filter Replacement) 8 Cylinder Engines 7.0 L 7.4 qt *Do not overfill the DEF tank. See Diesel Exhaust Fluid on page 9-13. All quantities are approximate. When adding, be sure to fill to the appropriate level, as recommended in this manual.
  • Page 119 12-4 Technical Data Engine Drive Belt Routing...

  • Page 120: Driver Information

    INDEX Engine (cont'd) Oil Life System ....10-9 Accessories and Diesel Oil Messages ....5-13 Modifications .
  • Page 121 INDEX Fuel (cont'd) Messages (cont'd) Service Vehicle ....5-14 Filling the Tank ....9-36 Instrument Cluster .
  • Page 122 INDEX Starting the Vehicle Messages ....5-15 Recommended Fluids and Wait to Start Light ... . . 5-10 Supplement Lubricants .
  • Page 123 INDEX NOTES...

Table of Contents