See also:

Pulling a Trailer
Here are some important points: • There are many laws, including speed limit restrictions that apply to trailering. Check for legal requirements. • Consider using sway control. See Towing Equip ...

Automatic Door Locks
The vehicle may have an automatic lock/unlock feature. This feature can be programmed using the Driver Information Center (DIC). See Vehicle Personalization (With DIC Buttons) on page 5‑52 for m ...

Fuel
For diesel engine vehicles, see “Fuel for Diesel Engines” in the Duramax Diesel Supplement. For Vehicles with gasoline engines, please read this. ...