Cadillac 1995 DeVille Owners Literature page 127

Daytime Running Lamps (Canada Only)
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.
A light sensor o n top of the instrument panel makes the DRL work, so be
sure
it
isn't covered.
The DRL system will make your low beam headlamps come on at
reduced brightness when:
The ignition is on
Thc headlamp switch is off,
and
The transaxle is not in PARK (,P).
When it's dark enough outside, your low beam headlamps will change to
full brightness. When it's bright enough outside, the regular lamps will go
off, and your low beam headlamps change to the reduced brightness of
D RL.
To idle your vehicle
with
the DRL off shift the transaxle into PARK
(P).
The DRL will stay off until you shift out o f PARK (P).
As with anv vehicle, you should turn on the regular headlamp system
when you need it.
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