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 Advisor. To change the OnStar PIN, call OnStar and provide the Advisor with the current number.

    See also:

    Automatic Transmission Fluid
    How to Check Automatic Transmission Fluid It is not necessary to check the transmission fluid level. A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take the v ...

    Park Brake and P (Park) Mechanism Check
    WARNING! When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of the vehicle in case ...

    Anti-theft Alarm System Messages
    THEFT ATTEMPTED This message displays if the vehicle detects a tamper condition. ...