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 ...

Automatic Transmission Operation
The vehicle may have a shift lever located either on the steering column or on the console between the seats. P (Park): This position locks the front wheels. It is the best position to use when ...

Headlamps
The headlamp wiring is protected by four fuses. An electrical overload will cause a lamp to go on and off. If this happens, have your headlamp wiring checked right away. ...