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:

Languages
The vehicle can be programmed to respond in French or Spanish. Push and ask an Advisor. Advisors can speak French or Spanish. ...

Setting Cruise Control
If the cruise button is on when not in use, it could get bumped and go into cruise when not desired. Keep the cruise control switch off when cruise is not being used. The cruise control light on the ...

Object Detection System Messages
PARK ASST (Assist) BLOCKED SEE OWNERS MANUAL This message displays if there is something interfering with the park assist system. See Ultrasonic Parking Assist on page 9‑34 for more information ...