
Black plate (51,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
Instruments and Controls 5-51
Language (Language)
Select Language, then select from
the available language(s).
The selected language will display
on the system, and voice
recognition (if equipped) will reflect
the selected language.
Valet Mode (If Equipped)
This will lock the infotainment
system and steering wheel controls.
It may also limit top speed, power,
and access to vehicle storage
locations (if equipped).
To enable valet mode:
1. Enter a four-digit code on thekeypad.
2. Press Enter to go to the confirmation screen.
3. Re-enter the four-digit code.
Press LOCK or UNLOCK to lock or
unlock the system. Press Back to go
back to the previous menu.
Teen Driver (If Equipped)
Press and the following may
display:
.View Report Card
.Manage Settings
.Change PIN
.Key Registration
.Clear All Teen Keys/PIN
View Report Card
This allows the driver ’s driving
habits to be viewed. See “Teen
Driver” in“Settings” in the
infotainment manual.
Manage Settings
Press and the following may
display:
.Audio Volume Limit
.Teen Driver Speed Limiter
.Teen Driver Speed Warning Audio Volume Limit
This allows a maximum radio
volume to be set.
Select Off or On.
Teen Driver Speed Limiter
If equipped, this allows the
maximum speed limit of the vehicle
to be set.
Select Off or On.
Teen Driver Speed Warning
This allows a warning to be set
when a certain speed is exceeded.
Select Off or On.
Change PIN
This allows the Personal
Identification Number (PIN) to be
changed. See
“Teen Driver”in
“Settings” in the infotainment
manual.

Black plate (52,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
5-52 Instruments and Controls
Key Registration
This allows the key to be registered.
See“Register or Unregister a Key”
in “Teen Driver” in the infotainment
manual.
Clear All Teen Keys/PIN
This allows all Teen Driver keys and
the PIN to be cleared.
Select Continue or Cancel.
Radio
Press to display the Radio menu
and the following may display:
.Manage Favorites
.Number of Favorites Shown
.Audible Touch Feedback
.Bose AudioPilot
.Auto Volume
.Maximum Startup Volume
.Audio Cue Volume Manage Favorites
This allows favorites to be edited.
See
“Manage Favorites” in
“Settings” under“Radio” in the
infotainment manual.
Number of Favorites Shown
Press to set the number of favorites
to display.
Select the desired number or select
Auto and the infotainment system
will automatically adjust the number
of favorites shown.
Audible Touch Feedback
This allows Audible Touch
Feedback to be turned on or off.
Select Off or On.
Bose AudioPilot
This allows Bose AudioPilot to be
turned on or off.
Select Off or On. Auto Volume
This feature adjusts the volume
based on vehicle speed and
ambient noise.
Select Off, Low, Medium-Low,
Medium, Medium-High, or High.
Maximum Startup Volume
This feature sets the maximum
startup volume. If the vehicle is
started and the volume is greater
than this level, the volume is
adjusted to this level. To set the
maximum startup volume, press +
or
−to increase or decrease.
Audio Cue Volume
This feature sets the volume of
audio files played at system startup
and shutdown.
Select On, then press + or −to
increase or decrease the volume.

Black plate (57,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
Instruments and Controls 5-57
Voice Mail Numbers
This feature displays the voice mail
number for all connected phones.
To change the voice mail number,
select EDIT or press the EDIT
button. Type a new number, then
select SAVE or press the SAVE
button.
Voice
Select and the following may
display:
.Prompt Length
.Audio Feedback Speed
Prompt Length
This feature adjusts the voice
prompt length.
Select Short or Long.
Audio Feedback Speed
This feature adjusts the audio
feedback speed.
Select Slow, Medium, or Fast.
Display
Select and the following may
display:
.Mode
.Calibrate Touchscreen
.Turn Display Off
Mode
Select to change the display of the
infotainment system.
Select Auto, Day, or Night.
Calibrate Touchscreen
Select to calibrate the touchscreen,
then follow the prompts.
Turn Display Off
Select to turn the display off. Press
anywhere on the display area or any
faceplate button to turn the
display on.
Rear Camera
Select and the following may
display:
.Guidance Lines
.Rear Cross Traffic Alert
.Rear Park Assist Symbols
Guidance Lines
Select to turn Off or On. See
Assistance Systems for Parking or
Backing on page 9-55.
Rear Cross Traffic Alert
Select to turn Off or On.
Rear Park Assist Symbols
Select to turn Off or On. See
Assistance Systems for Parking or
Backing on page 9-55.

Black plate (1,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
Infotainment System 7-1
Infotainment
System
Introduction
Infotainment . . . . . . . . . . . . . . . . . . . 7-1
Introduction
Infotainment
See the infotainment manual for
information on the radio, audio
players, phone, navigation system,
and voice or speech recognition.
It also includes information on
settings.

Black plate (22,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
9-22 Driving and Operating
The ignition will switch from ACC/
ACCESSORY to OFF after
five minutes to prevent battery
rundown.
ON/RUN/START (Green Indicator
Light):This mode is for driving and
starting. With the ignition off, and
the brake pedal applied, pressing
the button once will place the
ignition system in ON/RUN/START.
Once engine cranking begins,
release the button. Engine cranking
will continue until the engine starts.
See Starting the Engine on
page 9-22. The ignition will then
remain in ON/RUN.
Service Only Mode
This power mode is available for
service and diagnostics, and to
verify the proper operation of the
malfunction indicator lamp as may
be required for emission inspection
purposes. With the vehicle off, and
the brake pedal not applied,
pressing and holding the button for
more than five seconds will place
the vehicle in Service Only Mode. The instruments and audio systems
will operate as they do in ON/RUN,
but the vehicle will not be able to be
driven. The engine will not start in
Service Only Mode. Press the
button again to turn the vehicle off.
Starting the Engine
Move the shift lever to P (Park) or
N (Neutral). The engine will not start
in any other position. To restart the
engine when the vehicle is already
moving, use N (Neutral) only.
{Caution
Do not try to shift to P (Park) if the
vehicle is moving. If you do, you
could damage the transmission.
Shift to P (Park) only when the
vehicle is stopped.
{Caution
If you add electrical parts or
accessories, you could change
the way the engine operates. Any
resulting damage would not be
covered by the vehicle warranty.
See
Add-On Electrical Equipment
on page 9-84.
Starting Procedure (Key
Access)
1. With your foot off the accelerator pedal, turn the ignition key to
START. When the engine starts,
let go of the key. The idle speed
will go down as the engine gets
warm. Do not race the engine
immediately after starting it.
Operate the engine and
transmission gently to allow the
oil to warm up and lubricate all
moving parts.
When the low fuel warning lamp
is on and the FUEL LEVEL LOW
message is displayed in the

Black plate (25,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
Driving and Operating 9-25
Warning (Continued)
overheat and cause a fire,
property damage, electric
shock, and injury.
.Do not operate the vehicle
with the heater cord
permanently attached to the
vehicle. Possible heater cord
and thermostat damage could
occur.
.While in use, do not let the
heater cord touch vehicle
parts or sharp edges. Never
close the hood on the
heater cord.
.Before starting the vehicle,
unplug the cord, reattach the
cover to the plug, and
securely fasten the cord.
Keep the cord away from any
moving parts.
4. Before starting the engine, be sure to unplug and store the
cord as it was before to keep it away from moving engine parts.
If you do not, it could be
damaged.
The length of time the heater should
remain plugged in depends on
several factors. Ask a dealer in the
area where you will be parking the
vehicle for the best advice on this.
Retained Accessory
Power (RAP)
The following vehicle accessories
can be used for up to 10 minutes
after the engine is turned off:
.Audio System
.Power Windows
.OnStar System (if equipped)
.Sunroof (if equipped)
.Accessory Power Outlets. The
console and center seat outlets
are RAP powered.
These features work when the key
is in ON/RUN or ACC/
ACCESSORY. Once the key is
turned from ON/RUN to LOCK/OFF, the windows and sunroof continue
to work up to 10 minutes until any
door is opened. The radio continues
to work for up to 10 minutes or until
the driver door is opened.
Shifting Into Park
{Warning
It can be dangerous to get out of
the vehicle if the shift lever is not
fully in P (Park) with the parking
brake firmly set. The vehicle can
roll. If you have left the engine
running, the vehicle can move
suddenly. You or others could be
injured. To be sure the vehicle will
not move, even when you are on
fairly level ground, use the steps
that follow. If the vehicle has a
four-wheel drive transfer case
with a N (Neutral) position, and
the transfer case is in N (Neutral),
the vehicle will be free to roll,
even if the shift lever is in
(Continued)