See also:

Odometer
Press the trip odometer reset stem until ODOMETER displays. This display shows the distance the vehicle has been driven in either kilometers (km) or miles (mi). ...

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 Calling ar ...

Compass
Your vehicle may have a compass in the Driver Information Center (DIC). See Driver Information Center (DIC) (Without DIC Buttons) on page 5‑30 or Driver Information Center (DIC) (With DIC Button ...