2021 GMC YUKON ignition

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
134 Lighting
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . . . . . . . . . 134
Exterior Lamps Off Reminder . . . . . . . . . . 136
Headlamp High/Low-Beam Changer . . . 136
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Daytime Running Lamps (DRL) . . . . . . . . . 136
Automatic Headlamp System . . . . . . . . . . 136
Hazard Warning Flashers . . . . . . . . . . . . . . 137
Turn and Lane-Change Signals . . . . . . . . . 138
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Interior Lighting
Instrument Panel IlluminationControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . 139
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 140
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Battery Load Management . . . . . . . . . . . . 140
Battery Power Protection . . . . . . . . . . . . . . 141
Exterior Lighting Battery Saver . . . . . . . . . 141
Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
instrument panel to the left of the steering
wheel.
There are four positions:
O: Turns off the automatic headlamps and
Daytime Running Lamps (DRL). Turn the
headlamp control to
Oagain to turn the
automatic headlamps or DRL back on.
For vehicles first sold in Canada, the off
position will only work when the vehicle is
shifted into P (Park). AUTO :
Automatically turns on the
headlamps, parking lamps, taillamps,
instrument panel lights, roof marker lamps
(if equipped), and license plate lamps.
;: Turns on the parking lamps including
all lamps, except the headlamps.
2: Turns on the headlamps with the
parking lamps and instrument panel lights.
When the headlamps are turned on while
the vehicle is on, the headlamps turn off
automatically 10 minutes after the ignition
is turned off. When the headlamps are
turned on while the vehicle is off, the
headlamps will stay on for 10 minutes
before turning off to prevent the battery
from being drained. Turn the headlamp
control off and then back to the headlamp
on position to make the headlamps stay on
for an additional 10 minutes.
To keep the lamps on for more than
10 minutes, the ignition must be on or in
ACC/ACCESSORY.
IntelliBeam System
If equipped, this system turns the vehicle's
high-beam headlamps on and off according
to surrounding traffic conditions.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
136 Lighting
Exterior Lamps Off Reminder
A reminder chime sounds when the
headlamps or parking lamps are manually
turned on, the ignition is off, and a door is
open. To disable the chime, turn the
lamps off.
Headlamp High/Low-Beam
Changer
Push the turn signal lever away from you
and release to turn the high beams on.
To return to low beams, push the lever
again or pull it toward you and release.
When the high-beam headlamps are on, this
indicator light on the instrument cluster will
also be on.
Flash-to-Pass
This feature lets you use the high-beam
headlamps to signal a driver in front of you
that you want to pass. It works even if the
headlamps are in the automatic position.
To use it, pull the turn signal lever toward
you, then release it.
If the headlamps are in the automatic
position or on low beam, the high-beam
headlamps will turn on. Depending on the
type of headlamp, they will either turn off
after a short duration or stay on as long as
you hold the lever toward you. The
high-beam indicator on the instrument
cluster will come on. Release the lever to
return to normal operation.
Daytime Running Lamps (DRL)
DRL can make it easier for others to see the
front of the vehicle during the day. Fully
functional DRL are required on all vehicles
first sold in Canada.
The DRL system comes on 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 system is on, only the DRL
are on. The taillamps, sidemarker lamps,
instrument panel lights, and other lamps
will not be on.
When it begins to get dark, the automatic
headlamp system switches from DRL to the
headlamps.
To turn off the DRL, turn the exterior lamp
control to
Oand then release. For vehicles
first sold in Canada, off will only work when
the vehicle is parked.
Automatic Headlamp System
When the exterior lamp control is set to
AUTO and it is dark enough outside, the
headlamps come on automatically.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
Lighting 137
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.
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 DRL. During that
delay, the instrument cluster may not be as
bright as usual. Make sure the instrumentpanel brightness control is in the full bright
position. See
Instrument Panel Illumination
Control 0139.
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
Oor 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
Oor;to disable
this feature.
Hazard Warning Flashers
Yukon/Yukon XL is shown, Denali similar
|: Press 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 vehicle's turn signals will not work.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
138 Lighting
Turn and Lane-Change Signals
An arrow on the instrument cluster flashes
in the direction of the turn or lane change.
Move the turn signal lever all the way up or
down to signal a turn.
Raise or lower the lever for less than
one second until the arrow starts to flash to
signal a lane change. This causes the turn
signals to automatically flash three times.
It will flash six times if Tow/Haul Mode is
active. Holding the turn signal lever for
more than one second will cause the turn
signals to flash until the lever is released.
The lever returns to its starting position
whenever it is released.
If after signaling a turn or a lane change the
arrows flash rapidly or do not come on, a
signal bulb could be burned out.Replace any burned out bulbs. If a bulb is
not burned out, check the fuse. See
Fuses
and Circuit Breakers 0331.
Turn Signal On Chime
If the turn signal is left on for more than
1.2 km (0.75 mi), a chime sounds at each
flash of the turn signal. The message TURN
SIGNAL ON will also appear in the Driver
Information Center (DIC). To turn the chime
and message off, move the turn signal lever
to the off position.
Fog Lamps
If equipped with fog lamps, the button is on
the exterior lamp control, to the left of the
steering column. The ignition must be on for the fog lamps
to come on.
#:
Press to turn the fog lamps on or off.
A light will come on in the instrument
cluster.
When the fog lamps are turned on, the
parking lamps automatically turn on.
When the headlamps are changed to high
beam, the fog lamps also go off. When the
high-beam headlamps are turned off, the fog
lamps will come on again.
Some localities have laws that require the
headlamps to be on with the fog lamps.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
Lighting 139
Interior Lighting
Instrument Panel Illumination
Control
The brightness of the instrument cluster
display, infotainment display and controls,
steering wheel controls, and all other
illuminated controls, as well as feature
status indicators can be adjusted.
D:Press the −or + to brighten or dim
the lights.
Dome Lamps
There are dome lamps in the overhead
console and the headliner.
To change the dome lamp settings, press
the following:
.Press and hold any of the overhead
console lens to turn all dome lamps on.
.Press and hold any of the overhead
consoles lens again to turn all dome
lamps off.
.Press OFF to turn off the dome lamps
when a door is open. An indicator light
on the button will turn on when the
dome lamp override is activated.
.Press OFF again to deactivate this feature
and the indicator light will turn off. The
dome lamps will come on when any door
is opened, the unlock button on the
remote key is pressed, or when the
ignition is switched off.
Reading Lamps
There are reading lamps in the overhead
console and the headliner, if equipped.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
140 Lighting
With Sunroof
Press the lens on each reading lamp to turn
it on or off.
Lighting Features
Entry Lighting
Some exterior lamps turn on briefly at
night, or in areas with limited lighting,
when
Kis pressed on the remote key. After about 30 seconds the exterior lamps turn off
when any door is opened, the unlock button
on the remote key is pressed, or when the
ignition is switched off. All interior lights
turn on and then the dome and remaining
interior lamps dim to off after 20 seconds.
Entry lighting feature for exterior lighting
can be changed by Vehicle Locator Lights.
See Vehicle Locator Lights under
Vehicle
Personalization 0126.
Exit Lighting
Some exterior lamps come on at night, or in
areas with limited lighting, when the driver
door is opened after the ignition is turned
off. The dome lamp comes on after the
ignition is turned off. The exterior lamps and
dome lamp remain on after the door is
closed for a set amount of time, then
automatically turn off.
The exterior lamps turn off immediately by
turning the exterior lamp control off.
The exit lighting for exterior lights can be
changed. See Vehicle Personalization 0126.
Battery Load Management
The vehicle has Electric Power Management
(EPM), which estimates the battery's
temperature and state of charge. It then
adjusts the voltage for best performance
and extended life of the battery.
When the battery's state of charge is low,
the voltage is raised slightly to quickly bring
the charge back up. When the state of
charge is high, the voltage is lowered
slightly to prevent overcharging. The
voltmeter gauge or the voltage display on
the Driver Information Center (DIC),
if equipped, may show the voltage moving
up or down. This is normal. If there is a
problem, an alert will be displayed.
The battery can be discharged at idle if the
electrical loads are very high. This is true for
all vehicles. This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all the power that
is needed for very high electrical loads.
A high electrical load occurs when several of
the following are on, such as: headlamps,
high beams, fog lamps, rear window
defogger, climate control fan at high speed,

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
Lighting 141
heated seats, engine cooling fans, trailer
loads, and loads plugged into accessory
power outlets.
EPM works to prevent excessive discharge of
the battery. It does this by balancing the
generator's output and the vehicle's
electrical needs. It can increase engine idle
speed to generate more power, whenever
needed. It can temporarily reduce the power
demands of some accessories.
Normally, these actions occur in steps or
levels, without being noticeable. In rare
cases at the highest levels of corrective
action, this action may be noticeable to the
driver. If so, a DIC message might be
displayed and it is recommended that the
driver reduce the electrical loads as much as
possible.Battery Power Protection
This feature shuts off the dome and reading
lamps if they are left on for more than
10 minutes when the ignition is off. This will
keep the battery from running down.
Exterior Lighting Battery Saver
The exterior lamps turn off about 10 minutes
after the ignition is turned off, if the parking
lamps or headlamps have been manually
left on. This protects against draining the
battery. To restart the 10-minute timer, turn
the exterior lamp control to the
Oposition
and then back to the
;or2position.
To keep the lamps on for more than
10 minutes, the ignition must be on or in
ACC/ACCESSORY.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
Infotainment System 161
To turn Video Voice Over on or off, touch
*, touch the toggle and then press OK to
confirm. Video Voice Over will remain active
over ignition cycles until it is turned off.
Bluetooth Headphone Setup
The RSI system will support Bluetooth
headphones. Up to 9 Bluetooth headphones
can be paired to each REAR SCREEN. This
screen provides a list of all Bluetooth
headphones that have been paired to the
RSI system, as well as control over their use
and settings. New Bluetooth headphones
can be connected or the Bluetooth
headphone settings can be changed in this
screen.
To pair Bluetooth headphones to one of the
rear screens:
1. Select Bluetooth Headphone Setup or touch
Xfrom the desired Rear Screen
Home Page.
2. Select Add New Headphones.
3. Make sure your Bluetooth headphones are in pairing mode. Once recognized by
the system, your Bluetooth headphones
will be displayed on the list of Available
Headphones. 4. Select your Bluetooth headphones from
the list. Touch OK once the Pairing
Successful pop-up displays. The
headphones may need to be unpaired
from your phone before pairing to
the RSI.
5. An option will be given to create a custom name for this pair of headphones
–touch Yes if you want to create a
unique name for these headphones in
this vehicle. Type the headphone’s name
using virtual keyboard on the screen. The
new name is assigned when
touching SAVE.
Paired headphones can be selected from the
list of currently connected headphones. The
selected headphone’s icon turns to green.
The name of the Bluetooth headphone can
be edited by touchingy.
To delete a connected Bluetooth headphone,
Touch
Yand then touch Yes.
Screen Brightness
Select Screen Brightness. Move the bar left
or right to adjust the display brightness.
Each screen may be uniquely adjusted. Remember Screen Power Status
The system remembers the last power state
(screen ON or OFF) of each rear screen
independently. After the vehicle ignition
power is turned ON, each rear screen power
ON, or remain OFF, based on it's last known
state prior to the previous ignition cycle.
Select On or Off.
Video Auto Play
Enabling Video Auto Play will cause the next
available video to automatically begin
playing when the previous video has ended.
Disabling Video Auto Play will cause the
video playback to pause until another video
is selected for playback. Select On or Off.
Clear All Miracast Data
The system stores the Miracast data of the
devices which have been connected to the
RSI system. The data can be deleted from
this feature.
Select Clear All Miracast Data. A pop-up
message is displayed when the data is
successfully deleted.