Automatic Headlamp System - Chevrolet 2007 Colorado Owner's Manual

The DRL system will come on when the following
conditions are met:
•
The ignition is on.
•
The exterior lamps control is in AUTO.
•
The transmission is not in PARK (P) if you
have an automatic transmission.
•
The light sensor determines it is daytime.
Your vehicle will have either the parking lamps or
reduced intensity low beams used as the DRL.
When the DRL are on, only those lamps will be on.
The taillamps, sidemarkers, and other lamps will
not be on. The instrument panel will not be lit
up either.
When it begins to get dark, the headlamps will
automatically switch from DRL to the regular
headlamps.
As with any vehicle, you should turn on the
regular headlamp system when you need it.
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Automatic Headlamp System

When it is dark enough outside, the automatic
headlamp system will turn on after the
transmission has been shifted from PARK (P) to
DRIVE (D). The headlamps, taillamps, sidemarker,
parking lamps, roof marker lamps, and the
instrument panel lights will turn on at normal
brightness. The radio lights will become more dim
when the headlights are off compared to when
the headlights are on.
Your vehicle has a light sensor located on the
top of the instrument panel. Be sure it is not
covered, or the system will be on whenever the
ignition is on.
The system may also turn on the headlamps when
driving through a parking garage, heavy overcast
weather, or a tunnel. This is normal.