OnStar Services

See also:

Charging System Light
The charging system light comes on briefly when the ignition is turned on, but the engine is not running, as a check to show the light is working. The light turns off when the engine is sta ...

Hill Start Assist (HSA)
This vehicle has a Hill Start Assist (HSA) feature, which may be useful when the vehicle is stopped on a grade. This feature is designed to prevent the vehicle from rolling, either forward or rearwa ...

Recreational Vehicle Towing
If the vehicle is a hybrid, see the hybrid supplement for more information. Recreational vehicle towing means towing the vehicle behind another vehicle – such as behind a motorhome. The two most co ...