Automatic Headlamp System
When the exterior lamp control is set to AUTO and it is dark enough outside, the headlamps come on automatically.

There is a light sensor located on top of the instrument panel. Do not cover the sensor; otherwise the headlamps will come on when they are not needed.
The system may also turn on the headlamps when driving through a parking garage or tunnel.
When it is bright enough outside, the headlamps will turn off or may change to Daytime Running Lamps (DRL).
The automatic headlamp system
turns off when the exterior lamp
control is turned to
or the
ignition
is off.
See also:
Checking Things Underthe Hood
CAUTION:
Things that burn can get on hot engine
parts and start a fire. These include
liquids like fuel, oil, coolant, brake fluid,
windshield washer and other fluids, and
plastic or rubber. Yo ...
Satellite Radio
Vehicles with an XM™ Satellite Radio tuner and a valid XM Satellite Radio subscription can receive XM programming.
XM Satellite Radio Service
XM is a satellite radio service based in the 48 contig ...
OnStar Steering Wheel Controls
This vehicle may have a Talk/Mute button that can be
used to interact with OnStar hands-free calling. See
Audio Steering Wheel Controls for more
information.
On some vehicles, the mute button c ...
