See also:

Power Reclining Seatbacks
To adjust the seatback: Tilt the top of the control rearward to recline. Tilt the top of the control forward to raise. WARNING Sitting in a reclined position when the vehicle is in mo ...

Programming with a Recognized Transmitter (Keyless Access Vehicles Only)
A new transmitter can be programmed to the vehicle when there is one recognized transmitter. To program, the vehicle must be off and all of the transmitters, both currently recognized and new, mu ...

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 opt ...