See also:

Rear Audio Controller (RAC)
The vehicle may have the Rear Audio Controller (RAC). Certain radio functions can be controlled with the RAC. or (Next/Previous): Press the up or down arrows to go to the next or to the previou ...

Reactivation for Subsequent Owners
Push and follow the prompts to speak to an Advisor as soon as possible after acquiring the vehicle. The Advisor will update vehicle records and will explain the OnStar service offers and options ...

Torque Lock
Torque lock is when the weight of the vehicle puts too much force on the parking pawl in the transmission. This happens when parking on a hill and shifting the transmission into P (Park) is not done p ...