2023 CHEVROLET TRAILBLAZER child lock

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Introduction 3
About Driving the Vehicle
As with other vehicles of this type, failure to
operate this vehicle correctly may result in
loss of control or a crash. Be sure to read
the driving guidelines in this manual in the
section called“Driving and Operating” and
specifically Driver Behavior 0174, Driving
Environment 0174, and Vehicle Design
0 174.
Danger, Warning, and Caution
Warning messages found on vehicle labels
and in this manual describe hazards and
what to do to avoid or reduce them.
{Danger
Danger indicates a hazard with a high
level of risk which will result in serious
injury or death.
{Warning
Warning indicates a hazard that could
result in injury or death.
Caution
Caution indicates a hazard that could
result in property or vehicle damage.
A circle with a slash through it is a safety
symbol which means “Do not,” “Do not do
this,” or“Do not let this happen.”
Symbols
The vehicle has components and labels that
use symbols instead of text. Symbols are
shown along with the text describing the
operation or information relating to a
specific component, control, message, gauge,
or indicator.
M:Shown when the owner’s manual has
additional instructions or information.
*: Shown when the service manual has
additional instructions or information.
0: Shown when there is more information
on another page — “see page.” Vehicle Symbol Chart
Here are some additional symbols that may
be found on the vehicle and what they
mean. See the features in this manual for
information.
u:
Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components Properly
P:Do Not Apply High Pressure Water
B:Engine Coolant Temperature
_:Flame/Fire Prohibited
H: Flammable
[:Forward Collision Alert
R:Fuse Block Cover Lock Location
+:Fuses
j:ISOFIX/LATCH System Child Restraints

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Keys, Doors, and Windows 7
Keys, Doors, and
Windows
Keys and Locks
Keys (Key Access) . . . . . . . . . . . . . . . . . . . . . . . . 7
Keys (Keyless Access) . . . . . . . . . . . . . . . . . . . . 9
Remote Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Remote Key Operation(Mechanical Key) . . . . . . . . . . . . . . . . . . . . . 10
Remote Key Operation (Remote Key) . . . 13
Remote Vehicle Start . . . . . . . . . . . . . . . . . . . 19
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . 22
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 22
Automatic Door Locks . . . . . . . . . . . . . . . . . . 23
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 23
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Doors
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . 30
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 30
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Immobilizer Operation . . . . . . . . . . . . . . . . . . 31
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 32
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 32
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 32
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . . . . . . . 32
Manual Rearview Mirror . . . . . . . . . . . . . . . . 33
Automatic Dimming Rearview Mirror . . . 33
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Power Windows . . . . . . . . . . . . . . . . . . . . . . . . 33
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Keys and Locks
Keys (Key Access)
{Warning
Leaving children in a vehicle with the
ignition key is dangerous and children or
others could be seriously injured or killed.
They could operate the power windows
or other controls or make the vehicle
move. The windows will function with
the keys in the ignition, and children or
others could be caught in the path of a
closing window. Do not leave children in
a vehicle with the ignition key.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Keys, Doors, and Windows 9
Press the key release button on the RKE
transmitter to extend the key blade. Press
the button and the key blade to retract
the key.
If it becomes difficult to turn the key in the
ignition, inspect the key blade for debris.
Periodically clean with a brush or pick.
See your dealer if a new key is needed.
Contact Roadside Assistance if locked out of
the vehicle. SeeRoadside Assistance Program
0 330.
With an active OnStar or connected service
plan, an OnStar Advisor may remotely
unlock the vehicle. See OnStar Overview
0 339.
Keys (Keyless Access)
{Warning
Leaving children in a vehicle with a
Remote Keyless Entry (RKE) transmitter is
dangerous and children or others could
be seriously injured or killed. They could
operate the power windows or other
controls or make the vehicle move. The
windows will function with the RKE
transmitter in the vehicle, and children or
others could be caught in the path of a
closing window. Do not leave children in
a vehicle with an RKE transmitter.
The key inside the Remote Keyless Entry
(RKE) transmitter is used for the driver door.
To remove the key, press the button on the
side of the RKE transmitter and pull the key
out. Never pull the key out without pressing
the button.
If it becomes difficult to turn the key,
inspect the key blade for debris.
See your dealer if a new key is needed.
With an active OnStar or connected service
plan, an OnStar Advisor may remotely
unlock the vehicle. See OnStar Overview
0 339.

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
20 Keys, Doors, and Windows
With an automatic climate control system
and if equipped with heated seats, the
heated seats turn on during colder outside
temperatures and shut off when the ignition
is turned on.
The rear window defogger and heated
mirrors, if equipped, turn on during colder
outside temperatures and turn off when the
ignition is turned on.
After entering the vehicle during a remote
start, press the brake and ENGINE START/
STOP with the transmitter in the vehicle to
drive the vehicle.
If the vehicle is left running, it automatically
shuts off after 15 minutes unless a time
extension has been done.
Extending Engine Run Time
To extend the engine run time by
15 minutes, repeat Steps 1 and 2 while the
engine is still running. An extension can be
requested 30 seconds after starting. The
engine run time can only be extended if it is
the first remote start since the vehicle has
been driven. Remote start can be extended
one time.If the remote start procedure is used again
while the engine is still running, 15 minutes
will be added on for a total of 30 minutes.
For example, if
Qand then/are pressed
again while the engine is still running,
15 minutes will be added on for a total of
30 minutes.
A maximum of two remote starts or remote
start with an extension are allowed between
ignition cycles.
After the vehicle's engine has been started
two times using the remote start button or
a start with an extension, the ignition must
be turned on and then back off before the
remote start procedure can be used again.
Canceling a Remote Start
To manually shut off a remote start:
.Press and hold/until the lamps
turn off.
.Turn on the hazard warning flashers.
.Turn the ignition switch on and then off.
Conditions in Which the Remote Start
Will Not Work
The vehicle cannot be started using the
remote start feature if the key is in the
ignition (Key Access) or if a transmitter is in
the vehicle (Keyless Access), the hood is
open, the vehicle is on, the hazard warning
flashers are on, the vehicle is not in P (Park),
two remote starts or a start with an
extension have been used, or there is an
emission control system malfunction.
The engine turns off during a remote start if
the coolant temperature gets too high or if
the oil pressure gets low.
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. (Continued)

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Keys, Doors, and Windows 21
Warning (Continued)
So, all passengers should wear seat
belts properly and the doors should be
locked whenever the vehicle is driven.
.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.
To lock/unlock the doors from the outside:
.PressQorKon the Remote Keyless
Entry (RKE) transmitter. See Remote Key
Operation (Mechanical Key) 010 or
Remote Key Operation (Remote Key) 013.
.Use the key in the driver door. The key
lock cylinder is covered with a cap.
To lock/unlock the doors from the inside:
.PressQorKon the power door lock
switch.
.Push down on the door lock knob to lock
a door.
.Pull the door handle once to unlock it.
Pull the door handle again to unlatch it.
Keyless Access
The RKE transmitter must be within 1 m
(3 ft) of the liftgate or door being opened.
Press the button on the door handle to
open. See Remote Key Operation
(Mechanical Key) 010 or
Remote Key Operation (Remote Key) 013.
Driver Door Key Lock Cylinder Access (In
Case of Dead Battery)
To access the driver door key lock cylinder:
1. Insert the key into the slot on the bottom of the cap.
2. Lift the key upward to remove the cap.
3. Insert the key into the cylinder and turn to lock or unlock.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
24 Keys, Doors, and Windows
To open a rear door when the safety lock
is on:1. Unlock the door by pulling the inside handle, by pressing the power door lock
switches, or by using the Remote Keyless
Entry (RKE) transmitter.
2. Open the door from the outside.
When the safety lock is enabled, adults and
older children will not be able to open the
rear door from the inside. Cancel the safety
locks to enable the doors to open from the
inside.
To cancel the safety lock: 1. Unlock the door and open it from the outside.
2. Move the lever down to unlock. Do the same for the other door.Doors
Liftgate
{Warning
Exhaust gases can enter the vehicle if it
is driven with the liftgate or trunk/hatch
open, or with any objects that pass
through the seal between the body and
the trunk/hatch or liftgate. Engine
exhaust contains carbon monoxide (CO)
which cannot be seen or smelled. It can
cause unconsciousness and even death.
If the vehicle must be driven with the
liftgate or trunk/hatch open:
.Close all of the windows.
.Fully open the air outlets on or under
the instrument panel.
.Adjust the climate control system to a
setting that brings in only outside air
and set the fan speed to the highest
setting. See “Climate Control Systems”
in the Index.
(Continued)
Warning (Continued)
.If the vehicle is equipped with a
power liftgate, disable the power
liftgate function.
See Engine Exhaust 0194.
Caution
To avoid damage to the liftgate or
liftgate glass, make sure the area above
and behind the liftgate is clear before
opening it.
Manual Liftgate
To unlock the liftgate, pressKon the
power door lock switch or press
Kon the
Remote Keyless Entry (RKE) transmitter
twice within five seconds. See Remote Key
Operation (Mechanical Key) 010 or
Remote Key Operation (Remote Key) 013.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Keys, Doors, and Windows 33
Do not spray glass cleaner directly on the
mirror. Use a soft towel dampened with
water.
Manual Rearview Mirror
If equipped, push the tab forward for
daytime use and pull it rearward for
nighttime use to avoid glare of the
headlamps from behind.
Automatic Dimming Rearview
Mirror
If equipped, automatic dimming reduces the
glare of headlamps from behind. The
dimming feature comes on when the vehicle
is started.
Windows{
Warning
Never leave a child, a helpless adult, or a
pet alone in a vehicle, especially with the
windows closed in warm or hot weather.
They can be overcome by the extreme
heat and suffer permanent injuries or
even death from heat stroke.
The vehicle aerodynamics are designed to
improve fuel economy performance. This
may result in a pulsing sound when either
rear window is down and the front windows
are up. To reduce the sound, open either a
front window or the sunroof, if equipped.
Power Windows
{Warning
Children could be seriously injured or
killed if caught in the path of a closing
window. Never leave the Remote Keyless
Entry (RKE) transmitter in a vehicle with
children. When there are children in the (Continued)
Warning (Continued)
rear seat, use the window lockout switch
to prevent operation of the windows. See
Keys (Key Access)07or
Keys (Keyless Access) 09.
The power windows work when the ignition
is on, in ACC/ACCESSORY, or when Retained
Accessory Power (RAP) is active. See
Retained Accessory Power (RAP) 0192.
Using the window switch, press to open or
pull to close the window.
The windows may be temporarily disabled if
they are used repeatedly within a
short time.