remote start GMC YUKON 2021 Owner's Guide

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
Instruments and Controls 129
Auto Door Lock
When this feature is turned on, all doors
will automatically lock when the vehicle is
shifted out of P (Park) or when the vehicle
starts moving.
Select Off or On.
Auto Door Unlock
This setting allows selection of which doors
will automatically unlock when the vehicle is
shifted into P (Park).
Touch Off, All Doors, or Driver Door.
Delayed Door Lock
When on, this feature will delay the locking
of the doors. To override the delay, press
the power door lock switch on the door.
Touch Off or On.
Remote Lock, Unlock, and Start
Touch and the following may display:
.Remote Unlock Light Feedback
.Remote Lock Feedback
.Remote Door Unlock
.Remote Start Auto Cool Seats
.Remote Start Auto Heat Seats
.Remote Window Operation
.Passive Door Unlock
.Passive Door Lock
.Remote Left in Vehicle Alert
.Remote Removed from Vehicle Alert
Remote Unlock Light Feedback
When on, the exterior lamps will flash when
unlocking the vehicle with the Remote Key.
Touch Off or Flash Lights.
Remote Lock Feedback
This allows selection of what type of
feedback is given when locking the vehicle
with the Remote Key.
Touch Off, Lights and Horn, Lights Only,
or Horn Only.
Remote Door Unlock
This allows selection of which doors will
unlock when pressing
Kon the
Remote Key.
Touch All Doors or Driver Door.
Remote Start Auto Cool Seats
If equipped and turned on, this feature will
turn on the ventilated seats when using
remote start on warm days. See Heated and
Ventilated Front Seats 044 and
Remote Vehicle Start 014. Touch Off or On.
Remote Start Auto Heat Seats
If equipped and turned on, this feature will
turn on the heated seats when using remote
start on cold days. See
Heated and
Ventilated Front Seats 044 and
Remote Vehicle Start 014.
If equipped with Auto Heated Steering
Wheel, this feature will turn on when the
Remote Start Auto Heated Seats turn on.
Touch Off or On.
Remote Window Operation
If equipped, this feature enables remote
operation of the windows with the Remote
Key. See Remote Keyless Entry (RKE) System
Operation 08.
Touch Off or On.
Passive Door Unlock
This allows the selection of what doors will
unlock when using the button on the driver
door to unlock the vehicle.
Touch Off, All Doors or Driver Door Only.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
Infotainment System 193
Touch Disable or Enable.
Vehicle
This menu allows adjustment of different
vehicle features. SeeVehicle Personalization
0 126.
Personal
If equipped, this menu allows adjustment of
different user profile settings. See “Users”in
Using the System 0145 for information on
setting up user profiles.
The menu may contain the following:
Name
Touch to edit your user name that will be
displayed in the vehicle.
Vehicle Account Information
Touch to view the vehicle account
information and to change the account
password.
An “unverified user account” pop-up will
display until the account information
verification process has been completed on
the Internet. Check your registered e-mail
account for an activation e-mail to complete
the verification process. Profile Picture
Touch to choose or change your profile
picture.
Profile Identifiers
Touch to have the vehicle recognize the
identifier you choose.
Touch Vehicle Key 1 and/or Vehicle Key 2.
If the Remote Key is lost or stolen, see your
dealer.
Security
Touch to have your profile secured with
a PIN.
Touch No or Yes.
Vehicle Name
Touch to edit your vehicle name.
Vehicle Account
Touch to view the vehicle account
information and to change the account
password.
Delete Profile
Touch to remove the profile from the
vehicle.
Touch Remove or Cancel.
Teen Driver
If equipped, this allows multiple keys to be
registered for beginner drivers to encourage
safe driving habits. When the vehicle is
started with a Teen Driver key, it will
automatically activate certain safety
systems, allow setting of some features, and
limit the use of others. The Report Card will
record vehicle data about driving behavior
that can be viewed later. When the vehicle
is started with a registered key, the Driver
Information Center (DIC) displays a message
that Teen Driver is active.
To access:
1. Touch Settings on the Home Page, then touch Vehicle, and then Teen Driver.
2. Create a Personal Identification Number (PIN) by choosing a four-digit PIN.
Re-enter the PIN to confirm. To change
the PIN, touch Change PIN.
The PIN is required to:
.Register or unregister keys.
.Change Teen Driver settings.
.Change or clear the Teen Driver PIN.
.Access or delete Report Card data.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
194 Infotainment System
Register keys to activate Teen Driver and
assign restrictions to the key:
Any vehicle key can be registered, up to a
maximum of eight keys. Label the key to
tell it apart from the other keys.
For a pushbutton start system:1. Start the engine.
2. For automatic transmissions, the vehicle must be in P (Park). For manual
transmissions, the vehicle must be
stopped with the parking brake set.
3. From the Settings menu, touch Vehicle and then Teen Driver.
4. Enter the PIN.
5. Place the Remote Keyless Entry (RKE) transmitter key you wish to register in
the transmitter pocket. The key does not
need to be the one that started the
vehicle. See Remote Keyless Entry (RKE)
System Operation 08for transmitter
pocket location.
6. From the Teen Driver menu, touch Setup Keys.
.If the transmitter key has not
previously been registered, the option
to add the key displays. Touch Setup
and a confirmation message displays. Teen Driver restrictions will be
applied whenever this key is used to
operate the vehicle.
.If the transmitter key has already
been registered, the option to
remove the key displays. If Remove is
touched, the transmitter key is no
longer registered. A confirmation
message displays, and Teen Driver
restrictions will not be applied if this
transmitter key is used to operate
the vehicle.
In vehicles with a pushbutton start system,
if a Teen Driver and a non-Teen Driver key
are both present at start up, the vehicle will
recognize the non-Teen Driver key to start
the vehicle. The Teen Driver settings will not
be active.
For a keyed ignition system: 1. Start the engine.
2. For automatic transmissions, the vehicle must be in P (Park). For manual
transmissions, the vehicle must be
stopped with the parking brake set.
3. From the Settings menu, touch Vehicle and then Teen Driver.
4. Enter the PIN. 5. Touch Setup Keys. The system displays
instructions for registering or
unregistering a key. A confirmation
message displays.
Manage Settings
Audio Volume Limit : Allows the audio
volume limit to be turned on or off. Touch
Set Audio Volume Limit to choose the
maximum allowable audio volume level.
Set Audio Volume Limit : Allows a
maximum radio volume to be set. Use the
arrows to choose the maximum allowable
level for the audio volume.
Teen Driver Speed Limiter : Limits the
maximum speed of the vehicle. When the
speed limiter is turned on and the vehicle is
started with a Teen Driver key, the DIC
displays a message that the top speed is
limited.
On certain vehicles, when the Speed Limiter
is turned ON, the vehicle’s maximum
acceleration will be limited. The DIC will
display a message that the acceleration is
limited.
Teen Driver Speed Warning : Allows the
speed warning to be turned on or off. Touch
Set Teen Driver Speed Warning to set the
warning speed.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
Climate Controls 207
If equipped with heated outside mirrors,
press
fto turn them on or off. SeeHeated
Mirrors 030.
Caution
Using a razor blade or sharp object to
clear the inside rear window can damage
the rear window defogger. Repairs would
not be covered by the vehicle warranty.
Do not clear the inside rear window with
sharp objects.
Remote Start Climate Control Operation :
If equipped with remote start, the climate
control system may run when the vehicle is
started remotely. If equipped with heated or
ventilated seats or a heated steering wheel,
these features may come on during a
remote start. See Remote Vehicle Start 014,
Heated and Ventilated Front Seats 044, and
Heated Steering Wheel 096.
Sensors
The solar sensor, on top of the instrument
panel near the windshield, monitors the
solar heat.
The climate control system uses the sensor
information to adjust the temperature, fan
speed, recirculation, and air delivery mode
for best comfort.
Do not cover the sensor; otherwise the
automatic climate control system may not
work properly.
Rear Climate Control System
The rear climate control system is located
on the rear of the center console storage.
The rear climate settings can be adjusted
with this system.
1. Fan Control
2. TEMP (Temperature Control)
3. Heated Rear Seats (If Equipped)
4. MODE (Air Delivery Mode Control)
5. AUTO (Automatic Operation)
If the dual automatic climate control system
rear climate control lockout feature is
locked, the rear climate control settings can
only be adjusted from the front seat.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
226 Driving and Operating
Warning (Continued)
.Never stack heavier things, like
suitcases, inside the vehicle so
that some of them are above the
tops of the seats.
.Do not leave an unsecured child
restraint in the vehicle.
.When you carry something inside
the vehicle, secure it whenever
you can.
.Do not leave a seat folded down
unless you need to.
There is also important loading
information for off-road driving in this
manual. See “Loading Your Vehicle for
Off-Road Driving” underOff-Road
Driving 0216.
Starting and Operating
New Vehicle Break-In
Caution
The vehicle does not need an elaborate
break-in. But it will perform better in the
long run if you follow these guidelines:
.Keep the vehicle speed at 88 km/h
(55 mph) or less for the first 805 km
(500 mi).
.Do not drive at any one constant
speed, fast or slow, for the first
805 km (500 mi). Do not make
full-throttle starts. Avoid downshifting
to brake or slow the vehicle.
.Avoid making hard stops for the first
322 km (200 mi) or so. During this
time the new brake linings are not yet
broken in. Hard stops with new linings
can mean premature wear and earlier
replacement. Follow this breaking-in
guideline every time you get new
brake linings.
(Continued)
Caution (Continued)
.Do not tow a trailer during break-in.
See Trailer Towing 0284 for the
trailer towing capabilities of the
vehicle and more information.
Following break-in, engine speed and load
can be gradually increased.
Ignition Positions
Vehicles equipped with Keyless Access have
pushbutton starting.
The Remote Key must be in the vehicle for
the system to operate. If the pushbutton
start is not working, the vehicle may be
near a strong radio antenna signal causing

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
Driving and Operating 227
interference to the Keyless Access system.
SeeRemote Keyless Entry (RKE) System
Operation 08.
To shift out of P (Park), the ignition must be
on or in Service Mode, and the brake pedal
must be applied.
{Warning
Turning off the vehicle while moving may
cause loss of power assist in the brake
and steering systems and disable the
airbags. While driving, only shut the
vehicle off in an emergency.
Stopping the Engine/LOCK/OFF (No Indicator
Lights) : When the vehicle is stopped, press
ENGINE START/STOP once to turn the
engine off.
If the vehicle is in P (Park), the ignition will
turn off, and Retained Accessory Power (RAP)
will remain active. See Retained Accessory
Power (RAP) 0229.
If the vehicle is not in P (Park), the ignition
will return to ACC/ACCESSORY and display
the message SHIFT TO PARK in the Driver
Information Center (DIC). When the vehicle is
shifted into P (Park), the ignition system will
turn off. The vehicle may have an electric steering
column lock. The lock is activated when the
ignition is turned off and either front door is
opened. A sound may be heard as the lock
actuates or releases. The steering column
lock may not release with the wheels turned
off center. If this happens, the vehicle may
not start. Move the steering wheel from left
to right while attempting to start the
vehicle. If this does not work, the vehicle
needs service.
If the vehicle must be shut off in an
emergency:
1. Brake using a firm and steady pressure. Do not pump the brakes repeatedly. This
may deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the vehicle is moving.
After shifting to N (Neutral), firmly apply
the brakes and steer the vehicle to a
safe location.
3. Come to a complete stop. Hold the brake pedal down and shift to P (Park). The
vehicle must be in P (Park) to turn the
ignition off.
4. Continue to hold the brake pedal down. 5. Set the parking brake. See
Electric
Parking Brake 0240.
6. Press ENGINE START/STOP once to turn the ignition off.
7. Release the brake pedal.
If the vehicle cannot be pulled over, and
must be shut off while driving, press and
hold ENGINE START/STOP for longer than
two seconds, or press twice in five seconds.
ACC/ACCESSORY (Amber Indicator Light) :
This mode allows some electrical accessories
to be used when the engine is off.
With the ignition off, pressing the button
one time without the brake pedal applied
will place the ignition system in ACC/
ACCESSORY.
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 turn the
ignition on. Once engine cranking begins,
release the button. Engine cranking will
continue until the engine starts. See Starting
the Engine 0228.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
228 Driving and Operating
Service 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
Mode. The instruments and audio systems
will operate as they do when the ignition is
on, but the vehicle will not be able to be
driven. The engine will not start in Service
Mode. Press the button again to turn the
ignition off.
Starting the Engine
If the vehicle has a diesel engine, see the
Duramax diesel supplement.
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.
SeeAdd-On Electrical Equipment 0306. Shift the vehicle into P (Park) or N (Neutral).
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.
Starting Procedure
1. The remote key must be in the vehicle.
Press ENGINE START/STOP with the brake
pedal applied. When the engine begins
cranking, let go of the button.
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 light is on
and the FUEL LEVEL LOW message is
displayed in the Driver Information
Center (DIC), press the ENGINE START/
STOP position to continue engine
cranking.
Caution
Cranking the engine for long periods of
time, by trying to start the engine
immediately after cranking has ended,
can overheat and damage the cranking
motor, and drain the battery. Wait at
least 15 seconds between each try, to let
the cranking motor cool down.
2. If the engine does not start after five to 10 seconds, especially in very cold
weather (below −18 °C or 0 °F), it could
be flooded with too much gasoline. Try
pushing the accelerator pedal all the way
to the floor and holding it there while
pressing ENGINE START/STOP for up to a
maximum of 15 seconds. Wait at least
15 seconds between each try, to allow
the cranking motor to cool down. When
the engine starts, let go of the button
and accelerator. If the vehicle starts
briefly but then stops again, do the
same thing. This clears the extra gasoline
from the engine. Do not race the engine
immediately after starting it. Operate
the engine and transmission gently until
the oil warms up and lubricates all
moving parts.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
310 Vehicle Care
Also, seeAdding Equipment to the
Airbag-Equipped Vehicle 069.
Vehicle Checks
Doing Your Own Service Work
{Warning
It can be dangerous to work on your
vehicle if you do not have the proper
knowledge, service manual, tools,
or parts. Always follow owner’s manual
procedures and consult the service
manual for your vehicle before doing any
service work.
If doing some of your own service work, use
the proper service manual. It tells you much
more about how to service the vehicle than
this manual can. To order the proper service
manual, see Publication Ordering
Information 0406.
This vehicle has an airbag system. Before
attempting to do your own service work,
see Servicing the Airbag-Equipped Vehicle
0 69. If equipped with remote vehicle start, open
the hood before performing any service
work to prevent remote starting the vehicle
accidentally. See
Remote Vehicle Start 014.
Keep a record with all parts receipts and list
the mileage and the date of any service
work performed. See Maintenance Records
0 395.Caution
Even small amounts of contamination can
cause damage to vehicle systems. Do not
allow contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
{Warning
For vehicles with auto engine stop/start,
turn the vehicle off before opening the
hood. If the vehicle is on, the engine will
start when the hood is opened. You or
others could be injured.
{Warning
Components under the hood can get hot
from running the engine. To help avoid
the risk of burning unprotected skin,
never touch these components until they
have cooled, and always use a glove or
towel to avoid direct skin contact.
Clear any snow from the hood before
opening.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
Vehicle Care 313
1. Remote Negative (–) Location. SeeJump
Starting - North America 0367.
2. Positive (+) Terminal (Under Cover). See Jump Starting - North America 0367.
3. Battery - North America 0327.
4. Engine Compartment Fuse Block 0332.
5. Engine Oil Dipstick. See “Checking Engine
Oil” under Engine Oil 0315.
6. Engine Cooling Fans (Out of View). See Cooling System 0319. 7. Engine Oil Fill Cap. See
“When to Add
Engine Oil” underEngine Oil 0315.
8. Coolant Surge Tank and Pressure Cap. See Cooling System 0319.
9. Engine Air Cleaner/Filter 0318.
10. Brake Fluid Reservoir. See Brake Fluid
0 326.
11. Windshield Washer Fluid Reservoir. See “Adding Washer Fluid” underWasher
Fluid 0324.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
314 Vehicle Care
6.2L V8 Engine
1. Remote Negative (–) Location. See Jump
Starting - North America 0367.
2. Positive (+) Terminal (Under Cover). See Jump Starting - North America 0367.
3. Battery - North America 0327.
4. Engine Compartment Fuse Block 0332. 5. Engine Oil Dipstick. See
“Checking Engine
Oil” under Engine Oil 0315.
6. Engine Cooling Fans (Out of View). See Cooling System 0319.
7. Engine Oil Fill Cap. See “When to Add
Engine Oil” underEngine Oil 0315. 8. Coolant Surge Tank and Pressure Cap.
See Cooling System 0319.
9. Engine Air Cleaner/Filter 0318.
10. Brake Fluid Reservoir. See Brake Fluid
0 326.