OnStar Services

See also:

Rear Seat Audio (RSA) System
Vehicles with this feature allow the rear seat passengers to listen to and control any of the music sources: radio, CD, DVD, or other auxiliary sources. The rear seat passengers can control the sa ...

Third Row Seats
On vehicles with third row seats, the seatbacks can be folded, and the entire seat can be tumbled or removed from the vehicle. For detailed instructions, see Third Row Seats  . ...

Torque Lock
If you are parking on a hill and you do not shift the transmission into P (Park) properly, the weight of the vehicle can put too much force on the parking pawl in the transmission. It might be dif ...