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:

Trailer Gain and Output
On vehicles with the Integrated Trailer Brake Control (ITBC) system, the trailer brake display appears in the DIC. Press the vehicle information button until TRAILER GAIN and OUTPUT display. TRAILER ...

Lane Departure Warning (LDW) Light
For vehicles with the lane departure warning system, this light is located on the center of the instrument panel. This light briefly comes on green while starting the vehicle. If it does not, h ...

Glove Box
Open the glove box by lifting up on the lever. ...