OnStar Services

See also:

Brake Assist
This vehicle has a brake assist feature designed to assist the driver in stopping or decreasing vehicle speed in emergency driving conditions. This feature uses the stability system hydraulic brak ...

Radio(s)
VOL/ : Press to turn the system on and off. Turn to increase or decrease the volume. FM/AM: Press to select between FM or AM. : Press to select XM™, if equipped. TUNE/TONE: Turn to select ...

Timer
This display can be used as a timer. To start the timer, press SET/CLR while Timer is displayed. The display will show the amount of time that has passed since the timer was last reset. To stop t ...