Cadillac 2022 3.0L Duramax Diesel Engine Owner Manual Supplement
For the 2022 range, Cadillac is adding the powerful and efficient 3.0L Duramax Diesel Engine. This cutting-edge engine is made to give great speed and get good gas mileage. The 3.0L Duramax Diesel Engine has a lot of power and plenty of torque, which makes it easy to speed up and pull heavy loads. It uses advanced technology, like a variable geometry turbocharger and an advanced fuel injection system, to make burning more efficient and reduce pollution. The engine is smartly designed so that it runs smoothly and quietly, making driving quiet and comfy. The 3.0L Duramax Diesel Engine sets a new standard for diesel engines with its mix of power, efficiency, and refined performance. It gives Cadillac drivers a great balance of performance and fuel efficiency in their cars.
Driver Information Center (DIC)
The DIC is in the instrument cluster. The DIC comes on when the ignition is on. All of the diesel-specific information can be displayed in Zone 2 of the instrument cluster.
A Duramax diesel vehicle may have the following additional DIC menu items:
DEF: Displays the Diesel Exhaust Fluid (DEF) level as a bar graph with individual segments that illuminate from Empty (E) to Full (F). When LOW appears on the display and the segments turn red, add DEF as soon as possible. For a guide on how much DEF to add, see Diesel Exhaust Fluid 0 12.
Fuel Filter Life Remaining: This display shows an estimate of the fuel filter’s remaining useful life. If 90% Fuel Filter Life Remaining is displayed, it means 90% of the current fuel filter life remains. The fuel filter life system will alert you when to change the fuel filter on a schedule consistent with your driving conditions.
When the remaining fuel filter life is low, the CHANGE FUEL FILTER message will appear on the display. Change the fuel filter as soon as possible.
Fuel Filter Life Reset: Reset the Fuel Filter Life Remaining display after each fuel filter change. It will not reset itself. Also, be careful not to reset the display at any time other than when the fuel filter has just been changed because it cannot be reset accurately until the next fuel filter change. The fuel filter life will change to 100%when the system has been reset. To reset the system, touch and hold reset while the Fuel Filter Life Remaining vehicle information screen is displayed.
Engine Air Filter Life: Displays an estimate of the engine air filter’s remaining useful life and the state of the system. Engine Air Filter Life 95%means 95% of the current air filter life remains. Messages will display based on the engine air filter life and the state of the system. When the REPLACE AT NEXT OIL CHANGE message displays, the engine air filter should be replaced at the time of the next oil change. When the REPLACE SOON message displays, the engine air filter should be replaced at the earliest convenience. The Air Filter Life display must be reset after the engine air filter replacement. To reset, see Engine Air Filter Life System 0 29.
CAUTION:
Do not try to shift to P (Park) if the vehicle is moving. If you do, you could damage the transmission. Shift to P (Park) only when the vehicle is stopped.
Starting the Engine
- Place your foot on the brake and press ENGINE START/STOP. Observe the wait-to-start light. See Wait-to-Start Light 0 4. This light may not come on if the engine
is warm. - The wait-to-start light may be illuminated, depending on temperature conditions. There will be a delay in engine cranking after pressing ENGINE START/STOP based on temperature conditions. In extremely cold temperatures the delay will be longer. At the end of the delay the engine will begin to crank and will continue to crank until the engine starts.
- If the engine does not start after 15 seconds of cranking, turn the ignition off. Wait one minute for the cranking motor to cool, then try the same steps again.
If the Diesel Engine Will Not Start
If the vehicle runs out of fuel, see Running Out of Fuel 0 20. If the vehicle is not out of fuel, and the engine will not start, place your foot on the brake and press ENGINE START/STOP.
- If the wait-to-start light does not go off, wait a few seconds, then try starting the engine again. See your dealer as soon as possible for a starting system check.
- If the wait-to-start light comes on and then goes off and you know the battery is charged, but the engine still will not start, the vehicle needs service.
- If the wait-to-start light does not come on when the engine is cold, the vehicle needs service.
- If the battery does not have enough charge to start the engine, see “Battery” in the owner’s manual.
- Check that the correct engine oil has been used and changed at appropriate intervals. If the wrong oil is used, the engine may be harder to start.
- Be sure to use the proper fuel for existing weather conditions. See Fuel for Diesel Engines 0 15.
- If the engine starts, runs a short time, then stops, the vehicle needs service.
CAUTION:
Do not use gasoline or starting aids, such as ether, in the air intake. They could damage the engine, which may not be covered by the vehicle warranty. They could also cause a fire, which could cause serious personal injury.
To Use the Engine Heater
- Turn off the engine.
- Check the heater cord for damage. If it is damaged, do not use it. See your dealer for a replacement. Inspect the cord for damage at each use.
- Remove the engine heater connector cover by gently prying with a flat blade tool.
- Plug the heater cord into the connector in the front fascia.
- Plug the cord into a grounded 110- volt AC outlet that is protected by a ground fault detection function.
WARNING:
Improper use of the heater cord or an extension cord can damage the cord and may result in overheating and fire.
- Plug the cord into a three-prong electrical utility receptacle that is protected by a ground fault detection function. An ungrounded outlet could cause an electric shock.
- Use a weatherproof, heavy-duty, 15 amp-rated extension cord if needed. Failure to use the recommended extension cord in good operating condition,
or using a damaged heater or extension cord could make it overheat and cause a fire, property damage, electric shock, and injury. - Do not operate the vehicle with the heater cord permanently attached to the vehicle. Possible heater cord and thermostat damage could occur.
- While in use, do not let the heater cord touch vehicle parts or sharp edges. Never close the hood on the heater cord.
- Before starting the vehicle, unplug the cord, reattach the cover to the plug, and securely fasten the cord. Keep the cord away from any moving parts.
CAUTION:
Damage can occur to the DPF components if the required Ultra Low Sulfur Diesel (15 ppm sulfur maximum) fuel and engine oil specified in the Recommended Fluids and Lubricants section of this manual are not used. This damage would not be covered by the vehicle warranty.
WARNING:
During PDF self-cleaning or during extended idling in P (Park), the exhaust system and exhaust gases are very hot. Things that burn could touch hot exhaust parts under the vehicle and ignite. You or others could be burned. Do not park, or idle for an extended period of time, near or over papers, leaves, dry grass, or other things that can burn. Keep the exhaust area clear of material that could ignite or burn. See “Parking over Things That Burn” in the owner’s manual.
CAUTION:
Avoid extended idling because the DPF system is not capable of self-cleaning at idle. During extended idling, monitor the instrument cluster lights and DIC for messages and take appropriate action. Continued idling with the warning light/message on could cause damage to the DPF requiring repair and possible replacement that might not be covered by the vehicle warranty.
Service DEF System
If a problem occurs with the DEF system, a DIC message displays along with distance until vehicle speed is limited. The speed limitation will occur in a series of steps with the final speed limitation being 8 km/h (5 mph) along with a flashing warning light and chimes. In some cases, this message will clear itself, indicating that the DEF system was able to correct the condition. If the DIC message persists, see your dealer or additional DIC messages may display.
Service Emission System
If a problem occurs with the vehicle emission system, a DIC message displays along with distance until vehicle speed is limited. The speed limitation will occur in a series of steps with the final speed limitation of 88 km/h (55 mph) and chimes. In some cases, this message will clear itself, indicating that the emission system was able to correct the condition. If the DIC message persists, see your dealer or additional DIC messages may display.
Reference Links
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