General Information
For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:
See also:
Spare Tire
Your vehicle, when new, had a fully-inflated
spare tire. A spare tire may lose air over time, so
check its inflation pressure regularly.
After installing the spare tire on your vehicle, you
should ...
Ending a Call
Press to end a call. ...
Potential Issues
Some OnStar services are disabled
after five days. OnStar cannot
perform Remote Door Unlock or
Stolen Vehicle Assistance after the
vehicle has been off continuously
for five days. After five ...