Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Battery
The battery supplies power to start
the engine and operate any
additional electrical accessories.
• To avoid break-down or failure to
start the vehicle, maintain a
battery with full crankin ...
Side Blind Zone Alert (SBZA)
For vehicles with this feature, it may alert you to
vehicles located in your side blind zone. When the
system detects a vehicle in the side blind zone, an SBZA
display will light up in the corre ...
Shifting Into Park
WARNING!
It can be dangerous to get out of
the vehicle if the shift lever is not
fully in P (Park) with the parking
brake firmly set. The vehicle can
roll. If you have left the engine
runni ...