Black plate (3,1)Chevrolet Colorado Owner Manual - 2012
Lighting 6-3
When the DRL are on, only the
parking lamps or reduced intensity
low beam headlamps 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.
The regular headlamp system
should be turned on when needed.
Automatic Headlamp
System
When it is dark enough outside,
the automatic headlamp system
will turn on after the transmission
has been shifted from P (Park) to
D (Drive). The headlamps, taillamps,
sidemarker, parking lamps, roof
marker lamps, and the instrumentpanel lights turn on at normal
brightness. The radio lights will
become dimmer when the
headlights are off compared to
when the headlights are on.
The vehicle has a light sensor
located on the top of the instrument
panel. Do not cover the sensor,
or the system will be on whenever
the ignition is on.
The system can turn on the
headlamps when driving in a
parking garage, through a tunnel or
when there is overcast weather.
This is normal.
There is a delay in the transition
between the daytime and nighttime
operation of the Daytime Running
Lamps (DRL) and the automatic
headlamp system so that driving
under bridges or bright overhead
street lights does not affect the
system. The DRL and automatic
headlamp system will only be
affected when the light sensor
detects a change in lighting lasting
longer than the delay.
If the vehicle is started in a dark
garage, the automatic headlamp
system will come on immediately.
Once the vehicle leaves the garage,
it will take about 1 minute for the
automatic headlamp system to
change to DRL if it is light outside.
During that delay, the instrument
panel cluster may not be as bright
as usual. Make sure the instrument
panel brightness control is in the
full bright position. See
Instrument
Panel Illumination Control on
page 6‑6.
