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 ...

Console Shift Lever
If the vehicle is equipped with a console shift lever, use this procedure to shift the vehicle into P (Park): 1. Hold the brake pedal down. 2. Move the shift lever into P (Park) by pushing the l ...

Lock Feedback
Press the customization button until LOCK FEEDBACK: BOTH appears in the display. To select your preference for the feedback you receive when locking the vehicle with the Remote Keyless Entry (RK ...