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:
Automatic Headlamp System
When it is dark enough outside, the headlamps come on automatically.
Do not cover the light sensor on top of the instrument panel or the headlamps
will come on when they are not needed.
The syst ...
Cruise Control Messages
APPLY BRAKE BEFORE CRUISE
If this message displays when attempting to activate cruise control, apply the
brake pedal and try again.
CRUISE SET TO XXX
This message displays when the cruise control ...
Manual Operation
(Power): Press to turn the climate
control system on or off.
(Fan Control): Turn to increase
or decrease the fan speed. Adjusting the fan speed while in automatic mode places
the fan under ma ...





