Hazard Warning Flashers; Turn And Lane-Change; Signals - GMC Terrain 2018 Owner's Manual

152 Lighting
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 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, 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

: Press to make the front and
rear turn signal lamps flash on and
off. This warns others that you are
having trouble.
Press again to turn the
flashers off.

Turn and Lane-Change

Signals

Move the lever all the way up or
down to signal a turn.
An arrow on the instrument cluster
will flash in the direction of the turn
or lane change.