Light Sensor - Cadillac 2005 STS Owner's Manual

When the automatic lights are enabled and it is dark
enough outside, the DRL will turn off and the low-beam
headlamps will turn on. When it is bright enough
outside, the low-beam headlamps will go off, and the
DRL will turn back on. If you start your vehicle in a dark
garage, the automatic headlamp system will come on
immediately. Once you leave the garage, it will take
about one minute for the automatic headlamp system to
change to DRL if it is light outside. During that delay,
your instrument panel cluster may not be as bright
as usual. Make sure your instrument panel brightness
lever is in the full bright position. See Instrument
Panel Brightness on page 3-39.
To operate your vehicle with the DRL off, turn
the exterior lamp control off and then do one of
the following:
•
Turn the exterior lamp control to the parking
lamp position.
•
Turn the exterior lamp control to the
headlamp position.
•
Turn the exterior lamp control from AUTO to off and
back to AUTO.
An AUTOMATIC LIGHTS OFF message will appear
on the DIC, showing that automatic lighting has
been disabled.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
3-36

Light Sensor

The light sensor for the DRL is located on top of the
instrument panel. If you cover the sensor, it will
read dark, and the exterior lamps may come on when
you do not need them.