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Chevrolet GMC 2015 Manual

Chevrolet GMC 2015 Manual

Duramax diesel
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2015
Duramax Diesel

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  • Page 1 2015 Duramax Diesel...

  • Page 2: Table Of Contents

    2015 Chevrolet/GMC Duramax Diesel Supplement In Brief ......1-1 Vehicle Care ....10-1 Initial Drive Information .
  • Page 3 A French language manual can be to, GM, the GM logo, CHEVROLET, the printing of this owner manual. obtained from your dealer, at GMC, the CHEVROLET and GMC Refer to the purchase www.helminc.com, or from:...
  • Page 4 Introduction Index A good place to look for what you need is the Index in back of this supplement. It is an alphabetical list of what is in the supplement, and the page number where you will find it.
  • 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 In Brief Special DPF Driver Messages See Diesel Particulate Filter on does not have the fuel properties page 9-11 and Engine Power needed by the DPF-equipped If the vehicle is used for numerous Messages on page 5-13. Duramax diesel. short trips or extended slow-speed In addition: operation, the engine computer may Fuel...
  • Page 9 As the DEF tank becomes low on fluid, warnings begin with DEF can be purchased at a approximately 1600 km (1,000 mi) of Chevrolet or GMC dealer. It can remaining range. These warnings also be purchased at authorized will increase in intensity as the tank vehicle and truck dealerships.

  • Page 10: Instruments And Controls

    Instruments and Controls Instruments and Vehicle Messages Vehicle Messages ... 5-12 Controls Engine Cooling System Messages ....5-12 Engine Oil Messages .
  • Page 11 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 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 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 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 Instruments and Controls 5-13 message. For pickups only, a reduction in performance and EXHAUST FLUID RANGE: remember to check the coolant in acceleration. You should take the XXXX KM (MI) both sides of the reservoir. See vehicle in for service. When the exhaust fluid is getting Engine Coolant in the owner low, the range will be displayed in...
  • Page 23 5-14 Instruments and Controls EXHAUST FLUID QUALITY If the filter is not cleaned, the Starting the Vehicle malfunction indicator lamp will come POOR SEE OWNERS Messages on and the ENGINE POWER IS MANUAL NOW REDUCED message will be ELEVATED IDLE OFF This message displays when the displayed.
  • Page 24 Instruments and Controls 5-15 Vehicle Speed Messages vehicle speed will be limited to SPEED LIMITED TO 88 KM/H 88 km/h (55 mph) when the (55 MPH) For more information on these countdown is over. This message will be displayed messages, see Diesel Exhaust Fluid XXX KM (MI) UNTIL 7 KM/H along with other messages.

  • Page 25: Vehicle Personalization

    5-16 Instruments and Controls TRANSITIONING TO XX KM/H Vehicle 3. Turn the MENU knob to scroll to SETTINGS, then press the (XX MPH) MAX SPEED Personalization MENU knob. This message will be displayed 4. Turn the MENU knob to scroll to along with other messages.
  • Page 26 Instruments and Controls 5-17 Select Off, or On. Turn the MENU knob to the desired PTO TAP STEP SPEED setting. Press the MENU knob to This feature is available if the Power Take-Off (PTO) select the desired setting. vehicle is configured for Stationary There may be additional features Variable or Mobile PTO, and allows PTO SET 1 SPEED...
  • Page 27 5-18 Instruments and Controls Vehicle Personalization Feature Settings Menu Items PTO SET 1 SPEED (Van Models) This feature, available if the vehicle PTO STANDBY SPEED is configured for Stationary Preset Your Duramax diesel vehicle may This feature allows you to select the PTO, allows you to select the PTO 1 have additional customizable PTO standby speed.
  • Page 28 Instruments and Controls 5-19 3200 RPM 250 RPM To select a setting, press the set/ reset button while the desired NO CHANGE 350 RPM setting is displayed on the DIC. To select a setting, press the set/ NO CHANGE PTO SET 2 SPEED reset button while the desired To select a setting, press the set/ setting is displayed on the DIC.
  • Page 29 5-20 Instruments and Controls 65 MINUTES 80 MINUTES 95 MINUTES 110 MINUTES NO CHANGE To select a setting, press the set/ reset button while the desired setting is displayed on the DIC.

  • Page 30: Driving And Operating

    Driving and Operating Driving and Fuel Starting and Fuel for Diesel Engines ..9-21 Operating Operating What Fuel to Use in The U.S....9-21 Starting the Diesel What Fuel to Use in Canada and Mexico .
  • Page 31 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 32 Driving and Operating If the Diesel Engine Will Not Check that the correct engine oil Engine Idle Variations has been used and changed at Start Under certain conditions the engine appropriate intervals. If the wrong oil idle speed can vary or be elevated. If you have run out of fuel, see is used, the engine may be harder Change in idle speed is normal and...
  • Page 33 Driving and Operating To turn this feature on or off: The engine idle speed will return to Fast Idle Control normal once the following conditions 1. Turn the ignition to ON/RUN, The vehicle may have this system are met: with the vehicle off. which can be used to increase the Engine coolant temperature engine idle speed.
  • Page 34 Driving and Operating The brake pedal is pressed. When the winter cover is in use, the Heater, Ventilation, and Air The transmission is shifted out Conditioning AUTO mode may not of P (Park) or N (Neutral). function properly. Use the manual The parking brake is released.
  • Page 35 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...
  • Page 36 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 37 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 38 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 and better fuel economy during engine warm-up in cold weather conditions at or below 18°C (0°F).
  • Page 39 9-10 Driving and Operating hours. At temperatures below 29°C takes to warm the inside of the Warning ( 20°F), the coolant heater should vehicle in cold conditions below or remain plugged in for at least eight equal to 4°C (39°F). The FOH is Plugging the cord into an hours.

  • Page 40: Diesel Particulate Filter

    Driving and Operating 9-11 Parking over Things Diesel Particulate Caution That Burn Filter Permanent damage can occur to The vehicle has a Diesel Particulate the DPF or related components if Warning Filter (DPF) as part of the exhaust the required Ultra Low Sulfur system to reduce vehicle emissions.
  • Page 41 9-12 Driving and Operating See Malfunction Indicator Lamp on Warning Caution (Continued) page 5-8 and Engine Power Messages on page 5-13. During DPF self cleaning or During extended idle operation, Vehicles with DPF have specific fuel during extended idling in P (Park), monitor the instrument panel and engine oil requirements.

  • Page 42: Diesel Exhaust Fluid

    When adding DEF to an empty or very low tank, always add at least DEF can be purchased at a 7.6 L (2 gal) of fluid to release the Chevrolet or GMC dealer. It can Warning vehicle from speed limitation. also be purchased at authorized vehicle and truck dealerships.
  • Page 43 9-14 Driving and Operating See Exhaust Fluid Level in Driver Information Center (DIC) on page 5-11. To avoid vehicle speed limitations, the DEF tank should be refilled at the first opportunity after a low warning indication. If DEF is added before the EXHAUST FLUID EMPTY REFILL NOW message appears, it may take several km/mi...
  • Page 44 Driving and Operating 9-15 If DEF is added under freezing If these warnings are ignored and After the transition to 105 km/h conditions, additional time may be the DEF tank becomes empty, the (65 mph) is complete, the DIC required to remove speed limitations DIC message displays: message displays: and may require less fluid to fill the...
  • Page 45 9-16 Driving and Operating For emergency vans with RPO A flashing warning light and a chime (4 MPH) displays. A flashing YF2 or emergency pickups with also come on. Vehicle speed will be warning light and a chime also RPO ANM, EXHAUST FLUID reduced to a maximum speed limit come on.
  • Page 46 Driving and Operating 9-17 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, the DIC A flashing warning light and a chime is complete, a DIC message message displays: also come on.
  • Page 47 9-18 Driving and Operating For emergency vans with RPO message will clear itself, indicating (75 MI) UNTIL 7 KM/H (4 MPH) MAX YF2 or emergency pickups with that the DEF system was able to SPEED displays. The displayed RPO ANM, SERVICE EXHAUST correct the condition.
  • Page 48 Driving and Operating 9-19 Service Emission System When the mileage countdown is When the mileage countdown is zero, the DIC message SERVICE zero, the DIC message SERVICE These restrictions are not applicable EMISSION SYSTEM - SEE EMISSION SYSTEM - SEE to emergency vans with RPO YF2 OWNERS MANUAL NOW - OWNERS MANUAL NOW -...

  • Page 49: Brakes

    9-20 Driving and Operating Brakes A light in the switch will come on vehicle speed when used with when the exhaust brake is cruise control. See Cruise Control activated. in the owner manual. Exhaust Brake The Driver Information Center (DIC) Automatic downshifts will not occur The heavy duty diesel pickups have displays the message EXHAUST...

  • Page 50: Fuel

    Driving and Operating 9-21 Fuel Some conditions, such as dirty fuel, Caution (Continued) may decrease fuel filter life and a CHANGE FUEL FILTER message Fuel for Diesel Engines Diesel fuel has been mixed may come on in the Driver with engine oil, vegetable oil, Information Center (DIC).
  • Page 51 9-22 Driving and Operating Use diesel fuel that meets ASTM however, it will reduce power and Biodiesel specification D 975, Grades No. 2-D fuel economy. Avoid using No. 1-D Biodiesel is a renewable fuel or No. 1-D S15, also known as Ultra diesel fuel in warm or hot climates.
  • Page 52 Driving and Operating 9-23 Biodiesel blends Pumps dispensing more than 5% and up to 20% biodiesel are Use biodiesel blends that meet the required to be labeled with the ASTM specification D6751. concentration of biodiesel. When Retail pumps dispensing blends refueling with a biodiesel blend containing up to 5% biodiesel above B5, one of the following...
  • Page 53 9-24 Driving and Operating Biodiesel fuel quality degrades At temperatures below 32°F (0° Biodiesel quality can vary widely. with time and exposure to high C), it is recommended to switch To reduce the risk of poor quality temperature quicker than Ultra to Ultra Low Sulfur Diesel fuel fuel, purchase biodiesel blends Low Sulfur Diesel fuel.
  • Page 54 Driving and Operating 9-25 Vehicles operated for extended Refueling Accidental Refueling with periods of time on Ultra Low Gasoline Diesel fuel can foam when filling the Sulfur Diesel fuel and then tank. This can cause the automatic switched to biodiesel blends Caution pump nozzle to shut off, even if the may experience premature fuel...
  • Page 55 9-26 Driving and Operating What Fuel to Use in Diesel Fuel Types Biodiesel Canada and Mexico Fuels are blended for seasonal Biodiesel is a renewable fuel changes. Diesel Type A fuel is produced from vegetable oils or Use only diesel fuel with ultra low blended to ensure vehicles operate animal fats that have been sulfur content (15 ppm maximum).
  • Page 56 Driving and Operating 9-27 and fuel system. For detailed Accidental Refueling with Caution information on the use of biodiesel, Gasoline see What Fuel to Use in The U.S. Use of diesel fuel other than Ultra on page 9-21. Caution Low Sulfur Diesel (15 ppm sulfur Refueling maximum) will damage the If the vehicle is accidentally...
  • Page 57 9-28 Driving and Operating It is recommended to use Ultra Low Water in Fuel Troubleshooting Caution Sulfur No. 1-D diesel fuel or a blend If the WATER IN FUEL SERVICE of No. 1-D and No. 2-D diesel fuel to REQUIRED message comes on: Water in the diesel fuel can enhance vehicle operation in cold corrode internal components of...
  • Page 58 Driving and Operating 9-29 Recommended Recommended Caution Problem Action Problem Action Driving with this message on can Message Drain the fuel Immediately A large amount damage the fuel injection system displays and filter after refueling, of water is in the and the engine.
  • Page 59 9-30 Driving and Operating 3. Place a container under the filter 7. Start the engine and let it run for drain valve. The filter drain valve a few minutes. During the is on the bottom of the fuel filter. draining process, air may have For pickup models, the filter entered the fuel system.
  • Page 60 Driving and Operating 9-31 The FOH pump and FOH fuel lines were removed or disconnected. The system is not harmed by air in the fuel lines; however, the engine and/or the FOH may not start until the fuel system is primed and the air is removed.
  • Page 61 9-32 Driving and Operating attempts. Allow the engine to 5. Repeat the above steps until the Running Out of Fuel idle for a few minutes after it engine starts. Pickup Models starts. Check the filter for leaks. 6. If the engine starts, but does not run smoothly, increase the To Prime Van Models Warning...
  • Page 62 Driving and Operating 9-33 engine tries to run, but does not The fuel operated heater (FOH) 1. Drain any water from the filter. run smoothly, increase the rpm stops automatically when the fuel See Removing Water from Fuel slightly by using the accelerator tank volume is less than or equal to in Water in Fuel on page 9-28.
  • Page 63 9-34 Driving and Operating 4. Unplug the water sensor wire 8. Reinstall and tighten the filter Warning connected to the fuel filter and container and reconnect the unscrew the filter element. water sensor wire to the filter. Diesel fuel is flammable. It could 5.
  • Page 64 Driving and Operating 9-35 Fuel Filter 5. Reinstall and tighten the filter 3. Remove the filter element. cap and reconnect the water If there is any dirt on the filter 1. Apply the parking brake. sensor wire to the filter. sealing surface, clean it off.
  • Page 65 9-36 Driving and Operating Filling the Tank Warning (Continued) Warning Keep children away from the Fuel vapors and fuel fires burn fuel pump and never let violently and can cause injury or children pump fuel. death. Fuel can spray out if the fuel cap is opened too quickly.
  • Page 66 Driving and Operating 9-37 To remove the fuel cap, turn it Filling a Portable Fuel Caution slowly to the left (counterclockwise). Container Be careful not to spill diesel fuel. Do If a new fuel cap is needed, be not top off or overfill your tank, and sure to get the right type of cap Warning wait a few seconds after you have...

  • Page 67: Towing

    9-38 Driving and Operating Towing Use the following chart to determine Warning (Continued) how much the vehicle can weigh, based upon your vehicle model Trailer Towing and options. Place the nozzle inside the fill When towing at high elevation on opening of the container steep uphill grades, consider the before dispensing fuel, and...
  • Page 68 Driving and Operating 9-39 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 3.73 7 893 kg (17,400 lb) 11 113 kg (24,500 lb) Pickup Model Regular Cab Long 3.73...
  • Page 69 9-40 Driving and Operating Vehicle Axle Ratio Max. Trailer Wt. GCWR * 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 7 938 kg (17,500 lb) 11 113 kg (24,500 lb) Dual Rear Wheels 3.73...
  • Page 70 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 71 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 72: Conversions And Add-Ons

    Driving and Operating 9-43 The vehicle cannot be moving Conversions and the factory preset. The remote and the parking brake must controls are disabled. This factory Add-Ons be set. preset configuration can be programmed to enable the remote The shift lever must be in Power Take-Off (PTO) controls, and/or disable the in-cab P (Park).
  • Page 73 9-44 Driving and Operating The brake must be pressed and desired PTO operating speed. engage. The operator must take the then released. The brake must Additional information is available in action indicated, then attempt to then remain released. the service manual for the correct re-enable PTO.
  • Page 74 Driving and Operating 9-45 PTO Disengage Conditions disengaged and the engine is vehicle approaches the above shut down simultaneously. operational limits. There are To disengage the stationary or (Stationary remote PTO only) some vehicle conditions, such mobile PTO operation, do one of the as downhill acceleration, that From the remote PTO controls, following:...
  • Page 75 9-46 Driving and Operating remote controls. The in-cab controls service technician from base engine speed is 2100 rpm. This can be are enabled as the factory preset. idle rpm to max PTO operation reprogrammed by a service The remote controls are disabled. speed (3100 rpm).
  • Page 76 Driving and Operating 9-47 and M3. This reduces the maximum adjustment must be between engine COAST: Press and hold the SET vehicle speed while allowing high base idle speed and 1500 rpm switch to reduce the rpm by 150 rpm engine speed operation.
  • Page 77 9-48 Driving and Operating The transmission shift lever must Remote Engine Start Control Remote Engine Shutdown be in P (Park). Control The vehicle s PTO system allows The vehicle hood must be the engine to be remotely started The vehicle s PTO system allows for closed.
  • Page 78 Driving and Operating 9-49 Engine shutdown based on Prolonged or Extended PTO To prevent this from occurring, critical engine conditions: The frequently monitor the vehicle during Operation engine will be shut down when PTO operation. If the DIC message While operating the vehicle in PTO is operating if a critical is displayed during PTO operation, stationary PTO mode, the Diesel...
  • Page 79 9-50 Driving and Operating Programmable Factory Setting Minimum Value Maximum Value Parameters PTO In-cab Control ENABLED DISABLED ENABLED PTO Remote Control DISABLED DISABLED ENABLED Type of Set Switch MOMENTARY MOMENTARY LATCHING Operation Press ON Then Go To Set DISABLED DISABLED ENABLED 1 Speed Remote Engine Start...
  • Page 80 Driving and Operating 9-51 Programmable Factory Setting Minimum Value Maximum Value Parameters Max. PTO Engine Speed 2100 RPM 500 RPM 3100 RPM Max. PTO Engage Speed 1500 RPM 0 RPM 1500 RPM PTO Standby RPM 900 RPM 500 RPM Normal engine 1500 RPM idle will override if higher than Standby Speed...
  • Page 81 9-52 Driving and Operating Programmable Factory Setting Minimum Value Maximum Value Parameters 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 (>1.66 V, <3.33 V) Remote Set Switch...
  • Page 82 Vehicle Care 10-1 Vehicle Care General Information GM Accessories are designed to complement and function with other systems on the vehicle. See your Accessories and dealer to accessorize the vehicle General Information Modifications using genuine GM Accessories Accessories and installed by a dealer technician. Adding non-dealer accessories or Modifications .
  • Page 83 10-2 Vehicle Care Engine power enhancement products may enable the engine to operate at horsepower and torque levels that could damage, create failure, or reduce the life of the engine, engine emission system, transmission, and drivetrain. Damage, failure, or reduced life of the engine, transmission, emission system, drivetrain, or other vehicle components caused by aftermarket...
  • Page 84 Vehicle Care 10-3 Vehicle Checks Engine Compartment Overview United States Pickup Models Shown, Canada Similar...
  • Page 85 10-4 Vehicle Care 1. Remote Positive (+) Terminal 2. Battery 3. Coolant Surge Tank and Pressure Cap 4. Engine Air Cleaner/Filter 5. Diesel Exhaust Fluid (DEF) Fill Tube 6. Engine Oil Dipstick 7. Engine Oil Fill Cap 8. Engine Fan (Out of View) 9.
  • Page 86 Vehicle Care 10-5 United States Van Models Shown, Canada Similar...
  • Page 87 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 88 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 89 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 90 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 91 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 92 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 93 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 94 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 95 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 96 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 97 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 98 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 99 10-18 Vehicle Care Van Models Warning Caution (Continued) Heater and radiator hoses, and vehicle warranty. Always use other engine parts, can be very DEX-COOL (silicate-free) coolant hot. Do not touch them. If you do, in the vehicle. you can be burned. Do not run the engine if there is a Engine Coolant leak.
  • Page 100 Vehicle Care 10-19 Protect against rust and aluminum parts. If using this Caution corrosion. mixture, nothing else needs to be added. Help keep the proper engine If improper coolant mixture, temperature. inhibitors, or additives are used in Warning Let the warning lights and the vehicle cooling system, the gauges work as they should.
  • Page 101 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 102 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 103 10-22 Vehicle Care 1. Remove the coolant surge tank 4. With the coolant surge tank 5. Replace the pressure cap. Be pressure cap when the cooling pressure cap off, start the sure the pressure cap is system, including the coolant engine and let it run until the hand-tight and fully seated.
  • Page 104 Vehicle Care 10-23 Engine Overheating If there is an engine overheat Warning (Continued) warning and the vehicle does not There is an engine coolant have a low coolant condition, and engine if it overheats, and get out temperature gauge on the no steam is heard or seen, the of the vehicle until the engine instrument panel cluster.
  • Page 105 10-24 Vehicle Care If the vehicle no longer has the overheat warning, the vehicle can be driven. Just to be safe, drive slower for about 10 minutes. If the warning does not come back on, drive normally and have the cooling system checked for proper fill and function.
  • Page 106 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 107 11-2 Service and Maintenance The Tire Rotation and Required Refer to the information in the Warning Services are the responsibility of the Maintenance Schedule Additional vehicle owner. It is recommended to Required Services - Normal chart. Performing maintenance work can have your dealer perform these The Additional Required Services - be dangerous and can cause...
  • Page 108 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 109 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 110 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 111 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 112 Service and Maintenance 11-7 Special Application For Vans Replace the fuel filter when the Services CHANGE FUEL FILTER message in the Driver Information Center (DIC) Severe Commercial Use comes on. See Fuel System Vehicles Only: Lubricate chassis Messages on page 5-13. If the fuel components every 5 000 km/ 3,000 mi.
  • Page 113 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 114 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 115 11-10 Service and Maintenance Usage Fluid/Lubricant Pickup Models: Rear Driveline Center Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or Spline lubricant meeting requirements of NLGI #2, Category LB or GC-LB. Hood Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in Canada 10953474).
  • Page 116 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 117 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 118 Service and Maintenance 11-13 Odometer Date Serviced By Services Performed Reading...
  • Page 119 11-14 Service and Maintenance Odometer Date Serviced By Services Performed Reading...
  • Page 120 Technical Data 12-1 Technical Data Vehicle Data Capacities and Specifications ....12-2 Engine Drive Belt Routing . . . 12-4...
  • Page 121 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) 27.0 L 28.5 qt Cooling System (Van Models) Front Heat or AC Only 20.0 L 21.2 qt...
  • Page 122 Technical Data 12-3 Capacities Application Metric English *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. Recheck fluid level after filling. Engine Specifications Engine VIN Code...
  • Page 123 12-4 Technical Data Engine Drive Belt Routing...
  • Page 124 INDEX Engine (cont'd) Oil Life System ....10-9 Accessories and Diesel Oil Messages ....5-13 Modifications .
  • Page 125 INDEX Fuel (cont'd) Messages (cont'd) Service Vehicle ....5-14 Filling the Tank ....9-36 Instrument Cluster .
  • Page 126 INDEX Starting the Vehicle Messages ....5-14 Recommended Fluids and Wait to Start Light ... . . 5-10 Supplement Lubricants .
  • Page 127 INDEX NOTES...

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