Daytime Running; Lamps (Drl); Automatic Headlamp; System - Cadillac 2015 ATS Owner's Manual

6-4 Lighting
If the headlamps are in
main-beam mode, they will go to
dipped beam.

Daytime Running

Lamps (DRL)

DRL can make it easier for others to
see the front of your vehicle during
the day.
The DRL will come on when all of
the following conditions are met:
The ignition is on and the engine
is running.
The exterior lamp control is
in AUTO.
The light sensor determines it is
daytime.
The parking brake is released or
the vehicle is not in P (Park).
The tail lamps, sidemarker lamps,
instrument panel lights, and other
lamps will not be on.
The DRL turn off when the
headlamps are turned to
ignition is off.

Automatic Headlamp

System

When the exterior lamp control is
set to AUTO and it is dark enough
outside, the headlamps come on
automatically.
There is a light sensor on top of the
instrument panel. Do not cover the
sensor; otherwise the headlamps
will come on when they are not
needed.
or the
The system may also turn on the
headlamps when driving through a
parking garage or tunnel.
If the vehicle is started in a dark
garage, the automatic headlamp
system comes on immediately. If it
is light outside when the vehicle
leaves the garage, there is a slight
delay before the automatic headlight
system changes to the DRL. During
that delay, the instrument 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 6-7.
When it is bright enough outside,
the headlamps will turn off or may
change to Daytime Running
Lamps (DRL).
The automatic headlamp system
turns off when the exterior lamp
control is turned to or the ignition
is off.