OnStar Services

See also:

SERVICE BATTERY CHARGING SYSTEM
This message is displayed when there is a fault in the battery charging system. Take the vehicle to your dealer for service. ...

When to Change Engine Oil
This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engine temperature, and mile ...

Rear Window Defogger
(Rear Window Defogger): Press to turn the rear window defogger on or off. The rear window defogger turns off automatically after about 10 minutes. If turned on again it runs for about five minute ...