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:
Symbols
The vehicle has components and labels that use symbols instead of text. Symbols are shown along with the text describing the operation or information relating to a specific component, control, message ...
Following Distance
Stay at least twice as far behind the vehicle ahead as you would when driving
the vehicle without a trailer. This can help to avoid situations that require heavy
braking and sudden turns. ...
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 ...