Automatic Headlamp; System; Hazard Warning Flashers - GMC Terrain 2020 Owner's Manual

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-MidEast-
13556232) - 2020 - CRC - 5/13/19
134 Lighting
When the DRL are on, the taillamps,
sidemarker lamps, instrument panel
lights, and other lamps will not be
on. The instrument cluster will be lit.
The DRL turn off when the
headlamps are turned to
ignition is off.
The regular headlamp system
should be turned on when needed.

Automatic Headlamp

System

When the exterior lamp control is
set to AUTO and it is dark enough
outside, the headlamps come on
automatically.
or the
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.
The system may also turn on the
headlamps when driving through a
parking garage or tunnel.
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
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, the headlamps, parking
lamps, and other exterior lamps
come on. The transition time for the
lamps coming on varies based on
wiper speed. When the wipers are
not operating, these lamps turn off.
Move the exterior lamp control to
or to disable this feature.

Hazard Warning Flashers

or the ignition