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 ...

Environmental Concerns
○ Always use established trails, roads, and areas that have been set aside for public off-road recreational driving and obey all posted regulations. ○ Do not damage shrubs, flowers, tre ...

Head Restraint Adjustment
Do not drive until the head restraints for all occupants are installed and adjusted properly. To achieve a comfortable seating position, change the seatback recline angle as little as necessary w ...