Instrument Panel Illumination Control

This feature controls the brightness of the instrument panel controls and infotainment display screen. The thumbwheel is located to the left of the steering column on the instrument panel.
(Instrument Panel Brightness):
Move the thumbwheel up or down and hold, to brighten or dim the instrument panel
controls and infotainment display screen.
See also:
If No Steam Is Coming From The
Engine Compartment
If an engine overheat warning is displayed but no steam
can be seen or heard, the problem may not be too
serious. Sometimes the engine can get a little too hot
when the vehicle:
• Climbs a lo ...
Your Responsibility
Increase the volume of the radio if the OnStar Advisor cannot be heard.
If the light next to the OnStar buttons is red, the system may not be functioning properly. Push and request a vehicle diagnos ...
SBZA Error Messages
The following messages may
appear on the infotainment display:
SIDE BLIND ZONE ALERT
SYSTEM OFF: This message
indicates that the driver has turned
the system off.
SIDE BLIND ZONE SYS.
UNAVA ...
