Flash-To-Pass; Daytime Running; Lamps (Drl); Automatic Headlamp System - GMC Cadillac XT4 2019 Owner's Manual

This indicator light turns on in the
instrument cluster when the
high-beam headlamps are on.

Flash-to-Pass

To flash the high beams, pull the turn
signal lever toward you, and release.

Daytime Running

Lamps (DRL)

DRL can make it easier for others to
see the front of your vehicle during
the day.
The dedicated DRL will come on when
all of the following conditions are met:
The ignition is on.
The exterior lamp control is
in AUTO.
The light sensor determines it is
daytime.
When the DRL are on, the taillamps
and other lamps will not be on.
The DRL turn off when the headlamps
are turned to or the 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.
LIGHTING
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 headlamp
system changes to the Daytime
Running Lamps (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
0 159.
When it is bright enough outside, the
headlamps will turn off or may change
to DRL.
The automatic headlamp system turns
off when the exterior lamp control is
turned to or the ignition is off.
Lights On with Wipers
If the windshield wipers are activated
in daylight with the engine on, and
the exterior lamp control is in AUTO,
157