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:
The Inside
Like the pricier CTS sedan from sister brand Cadillac, the LaCrosse's
dashboard is trimmed in a leather-like material with stitched seams and padded
finishes. Ambient lighting pipes across the das ...
Lane Departure Warning (LDW)
The vehicle may have a Lane Departure Warning (LDW)
system. Read this entire section before using the system.
WARNING:
The Lane Departure Warning (LDW) system does
not steer the vehicle and is o ...
Electrical System Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is
too heavy, the circuit breaker opens
and closes, protecting th ...
