Chevrolet 2001 Malibu, Owner'S Manual

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Exterior Lamps
Headlamps
See “Turn Signal/Multifunction Lever” in the Index.
Daytime Running Lamps
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. Fully
functional daytime running lights are required on all
vehicles first sold in Canada.
The DRL system will make your low
-
beam headlamps
come on at a reduced brightness when the following
conditions are met:
D The ignition is on,
D the headlamp switch is to AUTO or you have turned
on your parking lamps,
D the light sensor detects daytime light,
D the parking brake is released, and
D the shift lever is not in PARK (P).
When the DRL system is on, the taillamps, sidemarker
lamps, parking lamps and instrument panel lights will
not be illuminated unless you have turned the headlamp
control to the parking lamp or headlamp position.
The DRL system will remain off any time your vehicle
is in PARK (P) or the parking brake is engaged and the
vehicle speed is less than 8 mph (13 km/h).
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Automatic Light Control (ALC)
When it is dark enough outside, your Automatic Light
Control (ALC) will turn on your headlamps at the
normal brightness along with other lamps such as the
taillamps, sidemarker, parking lamps and the instrument
panel lights. The radio lights will also be dim.
Your vehicle is equipped with a light sensor on the top
of the instrument panel under the defroster grill, so be
sure it is not covered which will cause the ALC system
to be on whenever the ignition is on.
The ALC system may also be on when driving through a
parking garage, heavy overcast weather or a tunnel. This
is normal.