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GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-MidEast-
15231009) - 2022 - CRC - 5/25/21
Flash-to-Pass
The flash-to-pass feature works with the low
beams or Daytime Running Lamps (DRL) on
or off.
To flash the high beams, pull the turn signal
lever toward you momentarily and then
release it.
Daytime Running Lamps (DRL)
DRL can make it easier for others to see the
front of your vehicle during the day.
The DRL system comes on in daylight when
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,
sidemarker lamps, instrument panel lights,
and other lamps will not be on. The
instrument cluster will be lit.
The DRL turn off when the 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.
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).
Lighting
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
this feature.
121
to disable
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