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:
Towing with a Stability Control System
When towing, the sound of the stability control system might
be heard. The system is reacting to the vehicle movement caused by the trailer,
which mainly occurs during cornering. This is normal wh ...
Responsive performance
Buick LaCrosse's stiff body structure serves as the foundation for precise
suspension tuning, safety and a quiet ride. Buyers can choose from a family of
efficient, direct-injection six-cylinder e ...
XM™ Satellite Radio Service
XM™ is a satellite radio service that is based in
the 48 contiguous United States and Canada.
XM™ offers a large variety of coast-to-coast
channels including music, news, sports, talk,
traff ...
