Performance and Maintenance
See also:
Automatic Dimming Rearview Mirror
The vehicle may have an automatic dimming inside
rearview mirror with OnStar® and/or a compass
display. Automatic dimming reduces the glare from
the headlamps of the vehicle behind you. The dim ...
When the System Does Not
Seem to Work Properly
The following messages may be
displayed on the DIC:
SERVICE PARK ASSIST: If this
message occurs, take the vehicle to
your dealer to repair the system.
PARK ASSIST OFF: If the URPA
system doe ...
Dome Lamp Override
The dome override
button is located below
the exterior lamps knob.
To turn the dome lamps off, press the button.
The dome lamps will remain off when a door is
open. This will override the ill ...
