key GMC SIERRA DENALI 2020 User Guide

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 8/27/19
Keys, Doors, and Windows 17
/:Press and releaseQ, then
immediately press and hold
/until
the turn signal lamps flash or for at
least four seconds. The engine may
be started from outside the vehicle
using the RKE transmitter. See
Remote Vehicle Start 025.
Q:Press to lock all doors and the
tailgate, if equipped.
If enabled, the turn signal lamps
flash and/or the horn may sound on
the second press to indicate locking
has occurred. If enabled, the horn chirps when
Qis pressed again
within three seconds. See Vehicle
Personalization 0156.
If the driver door is open when
Qis
pressed, all doors will lock and then
the driver door will immediately
unlock, if enabled. See Vehicle
Personalization 0156.
If the passenger door is open when
Qis pressed, all doors lock.
Pressing
Qarms the alarm system.
See Vehicle Alarm System 036.
If equipped with remote mirror
folding, pressing and holding
Qfor
one second will fold the mirrors,
if enabled. See Vehicle
Personalization 0156.
K:Press once to unlock only the
driver door. If
Kis pressed again
within three seconds, all remaining
doors and the tailgate unlock. The interior lamps may come on and
stay on for 20 seconds or until the
ignition is turned on.
If enabled, the turn signal lamps
flash twice to indicate unlocking has
occurred. If enabled, the exterior
lamps may turn on. See
Vehicle
Personalization 0156.
Pressing
Kon the RKE transmitter
disarms the alarm system. See
Vehicle Alarm System 036.
If equipped with remote mirror
folding, pressing and holding
Kfor
one second will unfold the mirrors,
if enabled. See Vehicle
Personalization 0156.
Press and hold
Kuntil the windows
fully open, if remote window
operation is enabled. See Vehicle
Personalization 0156.
x:Press twice quickly to release
the tailgate, if equipped.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 8/27/19
18 Keys, Doors, and Windows
7:Press and release to initiate
vehicle locator. The turn signal
lamps flash and the horn sounds
three times.
Press and hold
7for more than
three seconds to activate the panic
alarm. The turn signal lamps flash
and the horn sounds repeatedly for
30 seconds. The alarm turns off
when the ignition is turned on or
7
is pressed again. The ignition must
be off for the panic alarm to work.
Keyless Access Operation
The Keyless Access system allows
for doors and the tailgate to be
accessed without pressing the RKE
transmitter button. The RKE
transmitter must be within 1 m (3 ft)
of the tailgate or door being opened.
If the vehicle has this feature, there
will be a button on the outside door
handles. Keyless Access can be
programmed to unlock all doors on
the first lock/unlock press from the
driver door. Keyless Unlocking can
also be turned off. See
Vehicle
Personalization 0156.
If equipped with memory seats, RKE
transmitters 1 and 2 are linked to
seating positions of memory 1 or 2.
See Memory Seats 058.
Keyless Unlocking/Locking from
the Driver Door
When the doors are locked and the
RKE transmitter is within 1 m (3 ft)
of the door handle, pressing the
lock/unlock button on the driver door
handle will unlock the driver door.
If the lock/unlock button is pressed
again within five seconds, all
passenger doors and the tailgate
will unlock.
Driver Side Shown, Passenger Side Similar
Pressing the lock/unlock button will
cause all doors to lock if any of the
following occur:
. It has been more than
five seconds since the first lock/
unlock button press.
. Two lock/unlock button presses
were used to unlock all doors.
. Any vehicle door has been
opened and all doors are now
closed.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 8/27/19
Keys, Doors, and Windows 19
Keyless Unlocking/Locking from
the Passenger Doors
When the doors are locked and the
RKE transmitter is within 1 m (3 ft)
of the door handle, pressing the
lock/unlock button on a passenger
door handle will unlock all doors.
Pressing the lock/unlock button will
cause all doors to lock if any of the
following occur:
.The lock/unlock button was used
to unlock all doors.
. Any vehicle door has been
opened and all doors are now
closed.
Disable/Enable Keyless Unlocking
of Exterior Door Handles and
Tailgate
If equipped, keyless unlocking of the
exterior door handles and tailgate
can be disabled and enabled.
Disabling Keyless Unlocking:
With the vehicle off, press and
hold
QandKon the RKE
transmitter at the same time for
approximately three seconds. The
turn signal lamps will flash four times quickly to indicate access is
disabled. Using any exterior handle
to unlock the doors or open the
tailgate will cause the turn signal
lamps to flash four times quickly,
indicating access is disabled.
If disabled, disarm the alarm system
before starting the vehicle.
Enabling Keyless Unlocking:
With the vehicle off, press and
hold
QandKon the RKE
transmitter at the same time for
approximately three seconds. The
turn signal lamps will flash twice
quickly to indicate access is
enabled.
Passive Locking
This feature will lock the vehicle
several seconds after all doors are
closed, if the vehicle is off and at
least one RKE transmitter has been
removed from the interior, or none
remain in the interior.
If other electronic devices interfere
with the RKE transmitter signal, the
vehicle may not detect the RKE
transmitter inside the vehicle. If passive locking is enabled, the
doors may lock with the RKE
transmitter inside the vehicle. Do
not leave the RKE transmitter in an
unattended vehicle.
To customize the doors to
automatically lock when exiting the
vehicle, see
“Remote Lock, Unlock,
Start” under Vehicle Personalization
0 156.
Temporary Disable of Passive
Locking
Temporarily disable passive locking
by pressing and holding
Kon the
interior door switch with a door open
for at least four seconds, or until
three chimes are heard. Passive
locking will then remain disabled
until
Qon the interior door is
pressed, or until the vehicle is
turned on.
Remote Left in Vehicle Alert
When the vehicle is turned off and
an RKE transmitter is left in the
vehicle, the horn will chirp three

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 8/27/19
20 Keys, Doors, and Windows
times after all doors are closed. To
turn on or off seeVehicle
Personalization 0156.
Remote No Longer in Vehicle Alert
If the vehicle is on with a door open
and then all doors are closed, the
vehicle will check for RKE
transmitters inside. If an RKE
transmitter is not detected, the
Driver Information Center (DIC) will
display NO REMOTE DETECTED
and the horn will chirp three times.
This occurs only once each time the
vehicle is driven. To turn on or off
see Vehicle Personalization 0156.
Key Access
To access a vehicle with a dead
transmitter battery, see Door Locks
0 26.
Programming Transmitters to
the Vehicle
Only RKE transmitters programmed
to the vehicle will work. If a
transmitter is lost or stolen, a
replacement can be purchased and
programmed through your dealer.
The vehicle can be reprogrammed so that lost or stolen transmitters no
longer work. Each vehicle can have
up to eight transmitters matched
to it.
Programming with Recognized
Transmitters
A new transmitter can be
programmed to the vehicle when
there are two recognized
transmitters.
To program, the vehicle must be off
and all transmitters, both currently
recognized and new, must be
with you.
1. Remove the key from a recognized transmitter.
2. Place the two recognized transmitters in the cupholder or
on the passenger seat.
3. Insert the vehicle key into the key lock cylinder on the driver
door handle. Then turn the key
counterclockwise, to the unlock
position, five times within
10 seconds.
The DIC displays READY FOR
REMOTE#3, 4, 5 ETC.
Transmitter Pocket without Bucket
Seats (Lower Compartment)

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 8/27/19
Keys, Doors, and Windows 21
Transmitter Pocket with BucketSeats
4. Place the new transmitter in the transmitter pocket/insert.
5. Press ENGINE START/STOP. When the transmitter is
learned, the DIC display will
show that it is ready to program
the next transmitter.
6. Remove the transmitter from the transmitter pocket and
press
KorQon the
transmitter.
To program additional
transmitters, repeat Steps 4–6. When all additional transmitters
are programmed, press and
hold ENGINE START/STOP for
approximately 12 seconds to
exit programming mode.
7. Return the key back into the transmitter.
Programming without Recognized
Transmitters
If two currently recognized
transmitters are not available, follow
this procedure to program up to
eight transmitters. This feature is
not available in Canada. This
procedure will take approximately
30 minutes to complete. The vehicle
must be off and all transmitters to
be programmed must be with you. 1. Remove the vehicle key from the transmitter.
2. Insert the vehicle key into the key lock cylinder on the driver
door handle; then turn the key
counterclockwise, to the unlock
position, five times within
10 seconds. The DIC displays REMOTE
LEARN PENDING,
PLEASE WAIT.
3. Wait for 10 minutes until the DIC displays PRESS ENGINE
START BUTTON TO LEARN,
then press ENGINE
START/STOP.
The DIC will again display
REMOTE LEARN PENDING,
PLEASE WAIT.
4. Repeat Step 3 two additional times. After the third time all
previously known transmitters
will no longer work with the
vehicle. Remaining transmitters
can be relearned during the
next steps.
The DIC should now display
READY FOR REMOTE # 1.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 8/27/19
22 Keys, Doors, and Windows
Transmitter Pocket without BucketSeats (Lower Compartment)Transmitter Pocket with Bucket Seats
5. Place the new transmitter in the transmitter pocket/insert.
6. Press ENGINE START/STOP. When the transmitter is
learned, the DIC display will
show that it is ready to program
the next transmitter.
7. Remove the transmitter from the transmitter pocket/insert
and press
KorQon the
transmitter.
To program additional
transmitters, repeat Steps 5–7. When all additional transmitters
are programmed, press and
hold ENGINE START/STOP for
approximately 12 seconds to
exit programming mode.
8. Return the key back into the transmitter.
Starting the Vehicle with a Low
Transmitter Battery
If the transmitter battery is weak or if
there is interference with the signal,
the DIC may display NO REMOTE
DETECTED or NO REMOTE KEY
WAS DETECTED PLACE KEY IN
TRANSMITTER POCKET THEN
START YOUR VEHICLE when
starting the vehicle.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 8/27/19
Keys, Doors, and Windows 23
To start the vehicle:
Transmitter Pocket without BucketSeats (Lower Compartment)
Transmitter Pocket with Bucket Seats
1. Place the transmitter in the transmitter pocket/insert.
2. With the vehicle in P (Park) or N (Neutral) press the brake
pedal and ENGINE
START/STOP.
Replace the transmitter battery
as soon as possible.
Battery Replacement
{Warning
Never allow children to play with
the RKE transmitter. The
transmitter contains a small
battery, which can be a choking
hazard. If swallowed, internal
burns can occur, resulting in
severe injury or death. Seek
medical attention immediately if a
battery is swallowed.
{Warning
To avoid personal injury, do not
touch metal surfaces on the RKE
transmitter when it has been
exposed to extreme heat. These
surfaces can be hot to the touch
at temperatures above 59 °C
(138 °F).

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 8/27/19
24 Keys, Doors, and Windows
Caution
When replacing the battery, do
not touch any of the circuitry on
the transmitter. Static from your
body could damage the
transmitter.
Caution
Always replace the battery with
the correct type. Replacing the
battery with an incorrect type
could potentially create a risk of
battery explosion. Dispose of
used batteries according to
instructions and local laws. Do
not attempt to burn, crush, or cut
the used battery, and avoid
exposing the battery to
environments with extremely low
air pressures or high
temperatures.Replace the battery in the
transmitter soon if the DIC displays
REPLACE BATTERY IN
REMOTE KEY.
To replace the battery:
1. Press the button on the RKE
transmitter to remove the key.
Never pull the key out without
pressing the button.
2. Insert a flat, thin object in thecenter of the transmitter to
separate and remove the back
cover.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 8/27/19
Keys, Doors, and Windows 25
3. Lift the battery with a flatobject.
4. Remove the battery.
5. Insert the new battery, positive side toward the back cover.
Replace with a CR2032 or
equivalent battery.
6. Push together the transmitter.
7. Insert the key back into the RKE transmitter.
Remote Vehicle Start
If equipped with the remote start
feature, the climate control system
will come on when the vehicle is
started remotely, depending on the
outside temperature.
The rear defog and heated and
ventilated seats, if equipped, may
also come on. See Heated and
Ventilated Front Seats 060 and
Vehicle Personalization 0156.
If equipped, the automatic heated
steering wheel may also come on.
See Heated Steering Wheel 0119. Laws in some communities may
restrict the use of remote starters.
Check local regulations for any
requirements on remote starting of
vehicles.
Do not use remote start if the
vehicle is low on fuel. The vehicle
may run out of fuel.
The vehicle cannot be remote
started if:
.
The RKE transmitter is inside
the vehicle or if the key is in the
ignition.
. The hood is not closed.
. There is an emission control
system malfunction and the lamp
is on.
. The ignition is in any mode other
than off.
. The hazard warning flashers
are on.
. Two remote starts or a remote
start with an extension have
been used.
. The vehicle is not in P (Park). The engine will turn off during a
remote vehicle start if:
.
The coolant temperature gets
too high.
. The oil pressure gets low.
The RKE transmitter range may be
reduced while the vehicle is running.
Other conditions can affect the
performance of the transmitter. See
Remote Keyless Entry (RKE)
System 013.
Starting the Engine Using Remote
Start
1. Press and release
Q.
2. Immediately press and hold
/
until the turn signal lamps flash
or for at least four seconds.
When the vehicle starts, the
parking lamps will turn on. The
doors will be locked and the
climate control system may
come on.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 8/27/19
26 Keys, Doors, and Windows
The engine will continue to run
for 15 minutes. After
30 seconds, repeat
Steps 1 and 2 for a 15-minute
time extension.
Turn the ignition on to operate the
vehicle.
Extending Engine Run Time
The engine run time can be
extended by 15 minutes, for a total
of 30 minutes, if during the first
15 minutes Steps 1 and 2 are
repeated while the engine is still
running. An extension can be
requested 30 seconds after starting.
A maximum of two remote starts,
or a single start with an extension,
is allowed between ignition cycles.
The vehicle's ignition must be
turned on and then back off to use
remote start again.
Canceling a Remote Start
To cancel a remote start, do one of
the following:
. Press and hold
/until the
parking lamps turn off. .
Turn on the hazard warning
flashers.
. Turn the ignition on and then off.
Door Locks
{Warning
Unlocked doors can be
dangerous.
. Passengers, especially
children, can easily open
the doors and fall out of a
moving vehicle. The doors
can be unlocked and
opened while the vehicle is
moving. The chance of
being thrown out of the
vehicle in a crash is
increased if the doors are
not locked. So, all
passengers should wear
seat belts properly and the
doors should be locked
whenever the vehicle is
driven.
(Continued)
Warning (Continued)
.Young children who get into
unlocked vehicles may be
unable to get out. A child
can be overcome by
extreme heat and can suffer
permanent injuries or even
death from heat stroke.
Always lock the vehicle
whenever leaving it.
. Outsiders can easily enter
through an unlocked door
when you slow down or stop
the vehicle. Locking the
doors can help prevent this
from happening.
There are several ways to lock and
unlock the vehicle.
From outside:
. Use the Remote Keyless Entry
(RKE) transmitter.
. Use Keyless Access,
if equipped.
. Use the key in the driver door or
the passenger door, if equipped.