CHEVROLET TRAILBLAZER 2023 User Guide

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
10 Keys, Doors, and Windows
Remote Key
SeeRadio Frequency Statement 0335.
If there is a decrease in the Remote Keyless
Entry (RKE) transmitter operating range:
.Check the distance. The transmitter may
be too far from the vehicle.
.Check the location. Other vehicles or
objects may be blocking the signal.
.Check the transmitter’s battery. See
“Battery Replacement” later in this
section.
.If the transmitter is still not working
correctly, see your dealer or a qualified
technician for service.
Remote Key Operation
(Mechanical Key)
The RKE transmitter may work up to 60 m
(197 ft) away from the vehicle.
Other conditions can affect the performance
of the transmitter. See Remote Key010.
The following may be available:
Q:Press to lock all doors and, if equipped,
the locking fuel door. The hazard warning
lamps may flash and/or the horn may
sound on the second press to indicate
locking. To view available settings from the
infotainment screen, touch Settings >
Vehicle > Remote Lock, Unlock, Start.
If the driver door is open when
Qis pressed
and enabled through vehicle settings, all
doors will lock and then the driver door will
immediately unlock. To view available
settings from the infotainment screen, touch
Settings > Vehicle > Remote Lock, Unlock,
Start. Pressing
Qmay also arm the alarm system.
See Vehicle Alarm System 030.
K:Press to unlock the driver door. Press
again within five seconds to unlock all
doors. The RKE transmitter can be
programmed to unlock all doors on the first
button press. To view available settings from
the infotainment screen, touch Settings >
Vehicle > Remote Lock, Unlock, Start. The
hazard warning lamps may flash to indicate
unlocking.
Pressing
Kwill disarm the alarm system.
See Vehicle Alarm System 030.
If equipped, pressing
Kwill also unlock the
fuel door.
7: Press and release one time to initiate
vehicle locator. The exterior lamps flash and
the horn chirps three times. Press and hold
7for three seconds to sound the panic
alarm. The horn sounds and the turn signal
lamps flash for 30 seconds, or until
7is
pressed again or the vehicle is started.
/: If equipped, pressQand then press
and hold
/to start the engine from
outside the vehicle using the RKE
transmitter. To view available settings
from the infotainment screen, touch

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Keys, Doors, and Windows 11
Settings > Vehicle > Remote Lock, Unlock,
Start. The RKE transmitter buttons will not
operate when the key is in the ignition.
Programming Keys to the Vehicle
Only RKE keys programmed to this vehicle
will work. If a key is lost or stolen, a
replacement can be purchased and
programmed through your dealer. When the
replacement key is programmed to this
vehicle, all remaining keys must also be
reprogrammed. Any lost or stolen keys will
no longer work once the new key is
programmed.
Programming with Two Recognized Keys
To program a new key:1. Insert the original, already programmed key in the ignition and turn the
ignition on.
2. Turn the ignition off and remove the key.
3. Quickly, within five seconds, insert the second original already programmed key
in the ignition and turn the ignition on.
4. Turn the ignition off, and remove the key. 5. Insert the new key to be programmed
and turn the ignition on within
five seconds. The security light will turn
off once the key has been programmed.
6. Repeat Steps 1–5 if additional keys are to be programmed.
Programming without Two
Recognized Keys
Program a new key to the vehicle when a
recognized key is not available. Canadian
regulations require that owners see their
dealer.
If two currently recognized keys are not
available, follow this procedure to program
the first key.
This procedure will take approximately
30 minutes to complete for the first key.
The vehicle must be off and all of the keys
you wish to program must be with you.
1. Insert the new vehicle key into the ignition.
2. Turn the ignition on. The security light will come on.
3. Wait 10 minutes until the security light turns off.
4. Turn the ignition off. 5. Repeat Steps 2–4 two more times. After
the third time, turn the ignition on; the
key is learned and all previously known
keys will no longer work with the
vehicle.
6. To learn the second key, turn the ignition off, insert the second key to be
learned, and turn the ignition on.
After two keys are learned, the remaining
keys can be learned by following the
procedure in “Programming with Two
Recognized Keys.”
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.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
12 Keys, Doors, and Windows
{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).
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.
Caution
If the RKE transmitter is not reassembled
properly, liquids could enter the housing
and damage the circuitry, resulting in an
RKE transmitter malfunction and/or
failure. To prevent damage, always follow
the steps for RKE transmitter reassembly
in this manual to ensure the transmitter
is sealed properly whenever the RKE
transmitter is opened.
The battery is not rechargeable. To replace
the battery:
1. Separate the two halves of the transmitter by inserting a flat tool into
the recess of the transmitter.
2. Remove the battery with a small tool bypushing it toward the top of the
transmitter.
3. Insert a new battery, positive side up, pushing it down until it is held in place.
Use a CR 2032 or equivalent battery.
4. Ensure that the silicone mat is correctly positioned with no gaps or wrinkles.
5. Set transmitter button side down on a hard surface and press the other half
straight down to force the halves
together.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Keys, Doors, and Windows 13
Remote Key Operation
(Remote Key)
The Keyless Access system allows for vehicle
entry when the Remote Keyless Entry (RKE)
transmitter is within 1 m (3 ft). See“Keyless
Access Operation” following.
The RKE transmitter functions may work up
to 60 m (197 ft) away from the vehicle.
Other conditions can impact the
performance of the transmitter. See Remote
Key 010
With Power Liftgate and Remote Start
Shown
Q:Press to lock all doors. The turn signal
indicators may flash and/or the horn may
sound on the second press to indicate
locking. To view available settings from the
infotainment screen, touch Settings >
Vehicle > Remote Lock, Unlock, Start.
If the driver door is open when
Qis
pressed, and Open Door Anti Lockout is
enabled through vehicle settings, all doors
will lock and then the driver door will
immediately unlock. To view available
settings from the infotainment screen, touch
Settings > Vehicle > Remote Lock, Unlock,
Start. If the passenger door is open when
Q
is pressed, all doors lock.
Pressing
Qmay also arm the theft-deterrent
system. See Vehicle Alarm System 030.
K:Press to unlock the driver door. Press
unlock again within five seconds to unlock
all doors. The RKE transmitter can be
programmed to unlock all doors on the
first button press.To view available settings
from the infotainment screen, touch
Settings > Vehicle > Remote Lock, Unlock,
Start. When remotely unlocking the vehicle
at night the back-up lamps will come on for about 30 seconds to light your approach to
the vehicle. The turn signal indicators may
flash to indicate unlocking.
Pressing
Kwill disarm the theft-deterrent
system. See Vehicle Alarm System 030.
/:Press and releaseQand then
immediately press and hold
/for at least
four seconds to start the engine from
outside the vehicle using the RKE
transmitter. See Remote Vehicle Start 019.
7:Press and release one time to initiate
vehicle locator. The exterior lamps flash and
the horn chirps three times. Press and hold
7for three seconds to sound the panic
alarm. The horn sounds and the turn signal
lamps flash for 30 seconds, or until
7is
pressed again or the vehicle is started.
b: Press twice quickly to open or close
the liftgate.
Press once to stop the liftgate from moving.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
14 Keys, Doors, and Windows
Keyless Access Operation
With the Keyless Access system, you can
lock and unlock the doors and access the
liftgate without removing the RKE
transmitter from your pocket, purse,
briefcase, etc. The RKE transmitter should be
within 1 m (3 ft) of the liftgate or door being
opened. The buttons are on the outside door
handles.
Keyless Access can be programmed to
unlock all doors on the first lock/unlock
press from the driver door. To view available
settings from the infotainment screen, touch
Settings > Vehicle > Remote Lock, Unlock,
Start.
Keyless Unlocking/Locking from the
Driver Door
When the doors are locked and the RKE
transmitter is within 1 m (3 ft) of the driver
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 will unlock.
Driver Shown, Passenger 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 opened and all
doors are now closed. Keyless Unlocking/Locking from Front
Passenger 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 front 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 opened and all
doors are now closed.
Disable/Enable Keyless Unlocking of Exterior
Door Handles and Liftgate
If equipped, keyless unlocking of the exterior
door handles and liftgate can be disabled
and enabled.
Disabling Keyless Unlocking:
With the vehicle off, press and hold
Qand
Kon 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 liftgate will cause the turn signal lamps

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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Keys, Doors, and Windows 15
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
Qand
Kon 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
The vehicle will lock several seconds after all
doors are closed if the vehicle is off and at
least one RKE transmitter has been removed
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 view available settings from the
infotainment screen, touch Settings >
Vehicle > Remote Lock, Unlock, Start. 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 times after all doors are
closed. To view available settings from the
infotainment screen, touch Settings >
Vehicle > Remote Lock, Unlock, Start.
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 may chirp
three times. This occurs only once each time
the vehicle is driven. Keyless Liftgate Opening
Press the touch pad on the liftgate handle
to open the liftgate if the RKE transmitter is
within 1 m (3 ft).
Key Access
To access a vehicle with a weak transmitter
battery, see
Door Locks020.
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
of the transmitters, both currently
recognized and new, must be with you.
1. Place the two recognized transmitters in the transmitter pocket.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
16 Keys, Doors, and Windows
2. Insert the vehicle key of the newtransmitter into the key lock cylinder on
the outside of the driver door and turn
the key to the unlock position five times
within 10 seconds.
The DIC displays READY FOR REMOTE #2,
3, 4, etc.
3. Remove the two recognized transmittersfrom the transmitter pocket. Place the
new transmitter in the transmitter
pocket.
4. Press ENGINE START/STOP. When the transmitter is learned, the DIC display
will show that it is ready to program the
next transmitter. 5. Remove the transmitter from the
transmitter pocket and press the
transmitter
KorQbutton.
To program additional transmitters,
repeat Steps 3–5.
When all additional transmitters are
programmed, press and hold ENGINE
START/STOP for 12 seconds to exit
programming mode.
6. Put the key back into the transmitter.
7. Replace the key lock cylinder cap. See Door Locks 020.
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 of the transmitters you wish
to program must be with you. 1. Remove the key lock cylinder cap on the driver door handle. See Door Locks020.
Insert the vehicle key of the transmitter
into the key lock cylinder on the driver door handle and turn the key,
counterclockwise, to the unlock position
five times within 10 seconds.
The DIC displays REMOTE LEARN
PENDING, PLEASE WAIT.
2. Wait for 10 minutes until the DIC displays PRESS ENGINE START BUTTON TO
LEARN and then press ENGINE
START/STOP.
The DIC display will again show REMOTE
LEARN PENDING, PLEASE WAIT.
3. Repeat Step 2, 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 display should now show READY
FOR REMOTE # 1.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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Keys, Doors, and Windows 17
4. Place the new transmitter in thetransmitter pocket.
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 the
transmitter
KorQbutton. To program additional transmitters,
repeat Steps 4–6.
When all additional transmitters are
programmed, press and hold ENGINE
START/STOP for 12 seconds to exit
programming mode.
7. Put the key back into the transmitter.
8. Replace the key lock cylinder cap. See Door Locks 020.
Starting the Vehicle with a Low
Transmitter Battery
For improved vehicle security, the RKE
transmitter is equipped with a motion
sensor. When starting the vehicle, if the RKE
transmitter has been idle for a while, move
the transmitter slightly and try starting the
vehicle. When starting the vehicle, if the RKE
transmitter battery is depleted or there is
signal interference, the DIC may display NO
REMOTE DETECTED, REPLACE BATTERY IN KEY, or NO REMOTE DETECTED PLACE KEY IN KEY
POCKET THEN START YOUR VEHICLE, follow
the steps shown below:
To start the vehicle:
1. Place the transmitter in the transmitter
pocket with the buttons facing the front
of the vehicle.
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.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
18 Keys, Doors, and Windows
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).
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.
Caution
If the RKE transmitter is not reassembled
properly, liquids could enter the housing
and damage the circuitry, resulting in an
RKE transmitter malfunction and/or
failure. To prevent damage, always follow
the steps for RKE transmitter reassembly
in this manual to ensure the transmitter
is sealed properly whenever the RKE
transmitter is opened.
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 side of the RKE
transmitter to remove the mechanical
key. Never pull the key out without
pressing the button.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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Keys, Doors, and Windows 19
2. Separate the two halves of thetransmitter using a flat tool inserted into
the area near the key slot.
3. Remove the battery by pushing on thebattery and sliding it toward the bottom
of the transmitter.
4. Insert the new battery, positive side facing the back cover. Push the battery
down until it is held in place. Replace
with a CR2032 or equivalent battery.
5. Ensure that the silicone mat is correctly positioned with no gaps or wrinkles.
6. Set transmitter button side down on a hard surface and press the other half
straight down to force the halves
together.
7. Reinsert the key.
Remote Vehicle Start
The vehicle has a remote starting feature
that starts the engine from outside of the
vehicle.
/: This button is on the RKE transmitter.
Laws in some communities may restrict the
use of remote starters. For example, some
laws may require a person using the remote
start to have the vehicle in view when doing
so. Check local regulations for any
requirements on remote starting of vehicles. Do not use the remote start feature if the
vehicle is low on fuel. The vehicle could run
out of fuel.
The RKE transmitter range may be less while
the vehicle is running.
Other conditions can affect the performance
of the transmitter. See
Remote Key010.
Starting the Engine Using Remote Start
To start the vehicle:
1. Press and release
Qon the RKE
transmitter.
2. Immediately after completing Step 1, press and hold
/until the turn signal
lamps flash. If the vehicle's lights cannot
be seen, press and hold
/for at least
four seconds.
When the vehicle starts, the park lamps will
turn on and remain on as long as the
engine is running. The doors will be locked
and the climate control system will operate
automatically if the vehicle has the
automatic system, or at the same setting as
when the vehicle was last turned off.