OnStar Services

See also:

Shifting Into Park (P)
CAUTION: It can be dangerous to get out of your vehicle if the shift lever is not fully in PARK (P) with the parking brake firmly set. Your vehicle can roll. If you have left the engine runni ...

Wheel Alignment and Tire Balance
The tires and wheels on your vehicle were aligned and balanced carefully at the factory to give you the longest tire life and best overall performance. Adjustments to wheel alignment and tire bal ...

Trailer Towing (Except eAssist)
Before pulling a trailer, there are three important considerations that have to do with weight: • The weight of the trailer. • The weight of the trailer tongue. • The total weight on your ...