Fuel
For diesel engine vehicles, see “Fuel for Diesel Engines” in the Duramax Diesel Supplement.
For Vehicles with gasoline engines, please read this.
See also:
Checking Coolant
The coolant surge tank is located in the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview on page 10‑6 for more information on location.
The vehicle must ...
Transmission Messages
SERVICE TRANSMISSION
This message displays if there is a problem with the transmission. See your dealer.
SHIFT TO PARK
This message displays when the transmission needs to be shifted to P (Park).
...
Checking the Fluid Level
Prepare the vehicle as follows:
1. Park the vehicle on a level place. Keep the engine running.
2. With the parking brake applied, place the shift lever in P (Park).
3. With your foot on the brake p ...