See also:

Your Responsibility
Increase the volume of the radio if the OnStar Advisor cannot be heard. If the light next to the OnStar buttons is red, the system may not be functioning properly. Push and request a vehicle diagnos ...

Engine Cooling when Trailer Towing
The cooling system may temporarily overheat during severe operating conditions. See Engine Overheating. ...

Airbag Readiness Light
The system checks the airbag’s electrical system for possible malfunctions. If the light stays on it indicates there is an electrical problem. The system check includes the airbag sensor, the ...