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 Advisor. To ch ...

Taillamps, Turn Signal, Sidemarker, Stoplamps, and Back-Up Lamps
A. Stop/Tail/Turn Signal/ Sidemarker Lamp B. Auxiliary Taillamp C. Back-up Lamp ...

Recommended Transfer Case Settings
Notice: Driving on clean, dry pavement in four-wheel drive for an extended period of time can cause premature wear on the vehicle's powertrain. Do not drive on clean, dry pavement in Four-Wheel Driv ...