Instrument Panel Illumination Control
Instrument Panel Illumination Control
The brightness of the instrument panel lighting and steering wheel controls can be adjusted.
(Instrument Panel
Illumination): Move and hold the
thumbwheel up or down to brighten
or dim the lights.
See also:
Scheduling Service Appointments (U.S. and Canada)
When the vehicle requires warranty
service, contact your dealer and
request an appointment. By
scheduling a service appointment
and advising the service consultant
of your transportation nee ...
Horn
Press on the steering wheel
pad to sound the horn. ...
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 o ...