See also:

Rear Window Defogger
The rear window defogger uses a warming grid to remove fog from the rear window. (Rear Window Defogger): Press to turn the rear window defogger on or off. An indicator light below the button ...

Magnetic Ride Control™
The vehicle may have Magnetic Ride Control that automatically adjusts the ride of the vehicle. The controller receives input from the system to determine the proper ride. If the controller detec ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if ...