See also:

OnStar Personal Identification Number (PIN)
A PIN is needed to access some of the OnStar services, like Remote Door Unlock and Stolen Vehicle Assistance. You will be prompted to change the PIN the first time when speaking with an Advi ...

Theft-Deterrent Feature
THEFTLOCK® is designed to discourage theft of the vehicle’s radio by learning a portion of the Vehicle Identification Number (VIN). The radio does not operate if it is stolen or moved to a di ...

Console Shift
If the console shifter cannot be moved out of P (Park) 1. Apply and maintain the regular brakes. 2. Turn the ignition to ON/RUN position. See Ignition Positions for more information. 3. Let up o ...