GMC Yukon 2025 - Hazard Warning Flashers; Turn and Lane-Change Signals

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-17942154) - 2025
Lighting 139
There i
s a light sensor on top of the instrument
p
anel. 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.
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 3140.
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 O
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 O or ; to
disable this feature.
Hazard Warning Flashers
| : P
ress this button to make the front and
rear turn signal lamps flash on and off. Press
again to turn the flashers off.
When the hazard warning flashers are on, the
ve
hicle turn signals will not work.
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.
Raise or lower the lever until the arrow starts
to flash to signal alane change. Hold it there
until the lane change is complete. If the lever
is moved momentarily to the lane change
position, the arrow will flash three times.
The lever returns to its starting position when
it is released.