OnStar

See also:

Programming the Power Windows
If the vehicle battery has been recharged, disconnected or not working, the front power windows will need to be reprogrammed for the express-up feature to work. Before reprogramming, replace ...

Side Blind Zone Alert (SBZA)
The vehicle may have a Side Blind Zone Alert (SBZA) system. Read this entire section before using the system. WARNING! SBZA does not detect vehicles rapidly approaching outside of the side ...

How the System Works
URPA comes on automatically when the shift lever is moved into R (Reverse). A single tone sounds to indicate the system is working. URPA operates only at speeds less than 8 km/h (5 mph). An obstac ...