Automatic Headlamp System
When it is dark enough outside and the exterior lamps control is in the automatic position, the headlamps come on automatically. See Exterior Lamp Controls .

The vehicle has a light sensor located on top of the instrument panel. Make sure it is not covered, or the headlamps will be on when they are not needed.
The system may also turn on the headlamps when driving through a parking garage or tunnel.
See also:
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 ...
What to Use
WARNING
Adding only plain water or some other liquid to the cooling system can be dangerous.
Plain water and other liquids, can boil before the proper coolant mixture will.
The coolant warning ...
Safety Chains
You should always attach chains between your
vehicle and your trailer. Cross the safety chains
under the tongue of the trailer to help prevent the
tongue from contacting the road if it becomes
sep ...
