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:
Video Screen(s)
The video screen(s) are located in the overhead console.
To use the video screen(s):
1. Push the release button located on the overhead console.
2. Move the screen to the desired position.
When th ...
Tire Pressure
If the vehicle is a hybrid, see the hybrid supplement for more information.
Tires need the correct amount of air pressure to operate effectively.
Notice: Neither tire underinflation nor overinflatio ...
Leaving the Vehicle with the Engine Running
WARNING
It can be dangerous to leave the vehicle with the engine running.
The vehicle could move suddenly if the shift lever is not fully in P (Park)
with the parking brake firmly set. And, if you ...






