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 Callin ...

Using the “List” Command
1. Press and hold for two seconds. 2. Say “Directory.” 3. Say “Hands-Free Calling.” 4. Say “List.” ...

Compact Spare Tire
WARNING Driving with more than one compact spare tire at a time could result in loss of braking and handling. This could lead to a crash and you or others could be injured. Use only one compact s ...