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:
Interior Mirrors
Automatic Dimming Rearview Mirror
The vehicle has an automatic dimming inside rearview mirror.
Automatic dimming reduces the glare from the headlamps of the vehicle behind you.
Vehicles with OnStar ...
Ignition Positions (Keyless Access)
The vehicle has an electronic keyless ignition with pushbutton start.
Pressing the button cycles it through three modes: ACC/ACCESSORY, ON/RUN/START,
and Stopping the Engine/OFF.
The transmitter ...
Interior Lighting
Courtesy Lamps
When any door is opened, the interior lamps turn on to
enter and exit the vehicle. Turn the instrument panel
brightness control located on the
left side of
the steering wheel, ...