brake sensor BUICK REGAL 2004 Owner's Manual

Daytime Running Lamps / Automatic
Headlamp System
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the
day. DRL can be helpful in many different driving
conditions, but they can be especially helpful in the short
periods after dawn and before sunset. Daytime running
lamps are required to function at all times on all
vehicles rst sold in Canada.
A light sensor on top of the instrument panel makes the
DRL work, so be sure it is not covered.
The DRL system will make the front turn signal lamps
come on when the following conditions are met:
The ignition is on.
The exterior lamps control is off.
The parking brake is released.
While the DRL are on, only the vehicle’s front turn
signal lamps will also be on. The headlamps, taillamps,
sidemarker and other lamps will not be on. The
instrument panel will not be lit up either.
When it is dark enough outside, the front turn signal
lamps will turn off and the vehicle’s headlamps
and parking lamps will turn on. The other lamps that
come on with the headlamps will also come on.When it is bright enough outside, the headlamps will go
off and the front turn signal lamps will come on.
To idle the vehicle with the DRL and automatic
headlamp control off, set the parking brake while the
ignition is in OFF or LOCK. Then start the vehicle. The
DRL, headlamps and parking lamps will stay off until
the parking brake is released.
To turn off the automatic headlamp feature when it is
dark outside, move the exterior lamp control to the
parking lamp position. The parking lamps will remain
illuminated and the headlamps will turn off. The
fog lamps will also go on if they were on previously.
As with any vehicle, the regular headlamp system
should be turned on when needed.
Delayed Headlamps
Delayed headlamps illumination provides a period of
exterior lighting as you leave your vehicle. The feature is
activated when the vehicle’s headlamps are on due to
the automatic headlamp control feature described
previously in this section, and when the vehicle’s ignition
is turned off. The headlamps will then remain on until
the exterior lamps control is moved from OFF to
the parking lamp position or until a 90 second lighting
period has ended.
If the ignitionis turned off with the exterior lamps control
in the parking lamp or headlamps position, the
delayed headlamps illumination cycle will not occur.
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