See also:

How OnStar Service Works
Automatic Crash Response, Emergency Services, Crisis Assist, Stolen Vehicle Assistance, Vehicle Diagnostics, Remote Door Unlock, Roadside Assistance, Turn-by-Turn Navigation, and Hands-Free ...

Automatic Transmission Shift Lock
The vehicle has an automatic transmission shift lock control system. The shift lock control system is designed to: . Prevent ignition key removal unless the shift lever is in P (Park). . Prevent m ...

Compass
Compass Operation There is a compass display in the upper right corner of the mirror. Compass Calibration Press and hold to activate the compass calibration mode. CAL displays in the compass ...