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:
Cellular Phone Usage
Cellular phone usage may cause interference with the vehicle's radio.
This interference may occur when making or receiving phone calls, charging the phone's battery, or simply having the phone on. Th ...
Headlamp Aiming
The headlamp aiming system has been preset at the factory.
If the vehicle is damaged in an accident, the aim of the headlamps may be affected
and adjustment may be necessary.
It is recommended tha ...
Online Owner Center
GMC Owner Center (U.S.) www.gmcownercenter.com
Information and services customized for your specific vehicle — all in one convenient place.
• Digital owner manual, warranty information, and more ...