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Black plate (3,1)
Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6014443) - 2014 - CRC - 4/3/13
Lighting 6-3
When DRLs are on, only the
reduced intensity low-beam
headlamps or dedicated DRLs will
be on. The other exterior lamps and
the instrument cluster will not be on.
When the exterior lamp control is in
AUTO and it is dark enough outside,
the DRL turn off and the low-beam
headlamps will turn on. When it is
bright enough outside, the low-beam
headlamps will go off, and the DRL
will turn back on. If the vehicle is
started in a dark garage, the
automatic headlamp system comes
on immediately. Once the vehicle
leaves the garage, it takes about
one minute for the automatic
headlamp system to change to DRL
if it is light outside. During that
delay, the instrument cluster may
not be as bright as usual. Make sure
the instrument panel brightness
knob is in the full bright position.
See Instrument Panel Illumination
Control on page 6-6.
Turning the exterior lamp control to
off or to the low-beam headlamp
position will turn off the DRL. If the
parking lamps or the fog lamps were
turned on instead, the DRL will still
turn off.
This will work regardless of gear
position and whether or not the
parking brake is set.
When the DRL are active and a turn
signal is operated, the DRL on the
side the turn signal is activated, will
turn off until the turn signal is
turned off.
Automatic Headlamp
System
When it is dark enough outside, the
automatic headlamp system turns
on the headlamps at the normal
brightness, along with the taillamps,
sidemarker, parking lamps, and the
instrument panel lights. The radio
lights will also be dim.
To turn off the automatic headlamp
system, turn the exterior lamp
control to the off position and then
release it.
The vehicle has a light sensor on
the top of the instrument panel in
the defroster grille which regulates
when the automatic headlamps turn
on. Do not cover the sensor,
otherwise the headlamps will come
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.