See also:

Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not o ...

Trailer Brakes
If your trailer weighs more than 1,500 lbs (680 kg) loaded, then it needs its own brakes — and they must be adequate. Be sure to read and follow the instructions for the trailer brakes so you’l ...

Exit Lighting
This allows selection of how long the exterior lamps stay on when leaving the vehicle and it is dark outside. Press SELECT when Exit Lighting is highlighted. Turn the Menu knob to select Of ...