2023 CHEVROLET TAHOE door lock

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
Keys, Doors, and Windows 17
If a vehicle door is unlocked, and then
opened and closed, the doors will lock either
when your foot is removed from the brake
or the vehicle speed becomes faster than
13 km/h (8 mph).
To unlock the doors:
.PressKon the power door lock switch.
.Shift the transmission into P (Park).
Automatic door locking cannot be disabled.
Automatic door unlocking can be
programmed. To view available settings for
this feature, touch the Settings icon on the
infotainment home page. Select “Vehicle”to
display the list of available options and
select “Power Door Locks”.
Lockout Protection
For the Police and Special Service Packages,
see the Police and Special Service Packages
Supplement.
When locking is requested with the driver
door open and the ignition is on or in
accessory mode, all the doors will lock and
then the driver door will unlock.
If the vehicle is off and locking is requested
while a door is open, when all doors are
closed the vehicle will check for remote keys
inside. If a remote key is detected and the number of remote keys inside has not
reduced, the driver door will unlock and the
horn will sound three times.
This can be manually overridden by pressing
and holding
Qon the power door lock
switch.
Safety Locks
The rear door safety locks prevent
passengers from opening the rear doors
from inside the vehicle.
The safety lock is on the inside edge of the
rear doors. To use the safety lock:
1. Move the lever down to the lock position. 2. Close the door.
3. Do the same for the other rear door.
To open a rear door when the safety lock
is on: 1. Unlock the door by activating the inside handle, by pressing the power door
unlock switch, or by using the
remote key.
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 up to unlock. Do the same for the other door.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
18 Keys, Doors, and Windows
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 0214.
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 open the liftgate, pressKon the power
door lock switch or press
Kon the remote
key twice to unlock all doors. Press the
touch pad (1) on the underside of the
liftgate handle and lift up.
Press the button (2) above the license plate
to open the liftglass, or press
ctwice
quickly on the remote key. Do not leave the
liftglass open when raising the liftgate.
There will be a delay in the release of the
liftglass if there is an attempt to open it
while the rear wiper is in motion.
Use the pull cup to lower and close the
liftgate. Do not press the touch pad while
closing the liftgate. This will cause the
liftgate to be unlatched.
The liftgate can be opened when locked if
the remote key is within 1 m (3 ft) of the
touch pad. See Remote Key Operation 08.
The liftgate has an electric latch. If the
battery is disconnected or has low voltage,
the liftgate will not open. The liftgate will
resume operation when the battery is
reconnected and charged.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
Keys, Doors, and Windows 19
Power Liftgate Operation
{Warning
You or others could be injured if caught
in the path of the power liftgate. Make
sure there is no one in the way of the
liftgate as it is opening and closing.
Caution
Driving with an open and unsecured
liftgate may result in damage to the
power liftgate components.
If equipped, the power liftgate switch is on
the overhead console. The vehicle must be
in P (Park).
The modes are:
MAX :Opens to maximum height.
3/4 : Opens to a reduced height that can be
set from 3/4 to fully open. Use to prevent
the liftgate from opening into overhead
obstructions such as a garage door or
roof-mounted cargo. The liftgate can be
opened manually all the way.
OFF : Opens manually only.
To power open or close the liftgate, select
MAX or 3/4 mode and then:
.Pressbtwice quickly on the remote
key until the liftgate moves.
.Press8on the overhead console. The
driver door must be unlocked or locked
without the security armed.
.Press the touch pad on the underside of
the liftgate handle after unlocking all
doors. A locked vehicle can be opened if
the remote key is within 1 m (3 ft) of the
touch pad.
.Presslon the bottom edge of the
liftgate next to the latch to close.
Press any liftgate button, the touch pad,
or
bon the remote key while the liftgate
is moving to stop it. Pressing any liftgate
button or pressing
btwice quickly on the
remote key restarts the operation in the
reverse direction. Pressing the touch pad on
the liftgate handle will restart the motion,
but only in the opening direction.
Caution
Manually forcing the liftgate to open or
close during a power cycle can damage
the vehicle. Allow the power cycle to
complete.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
20 Keys, Doors, and Windows
When stopping the gate at low heights it
may partially reopen.
The power liftgate may be temporarily
disabled in extremely low temperatures,
or after repeated power cycling over a short
period of time. If this occurs, the liftgate can
still be operated manually. Select OFF on the
liftgate switch.
If the vehicle is shifted out of P (Park) while
the power function is in progress, the
liftgate will continue to completion. If the
vehicle is accelerated before the liftgate has
completed moving, the liftgate may stop or
reverse direction. Check for Driver
Information Center (DIC) messages and make
sure the liftgate is closed and latched before
driving.
Falling Liftgate Detection
If the power liftgate automatically closes
after a power opening cycle, it indicates that
the system is reacting to excess weight on
the liftgate or a possible support strut
failure. Remove any excess weight.
A repetitive chime will sound while the
falling liftgate detection feature is operating.
If the liftgate continues to automatically
close after opening, see your dealer for
service before using the power liftgate.Interfering with the power liftgate motion
or manually closing the liftgate too quickly
after power opening may resemble a
support strut failure. This could also activate
the falling liftgate detection feature. Allow
the liftgate to complete its operation and
wait a few seconds before manually closing
the liftgate.
Obstacle Detection Features
If the liftgate encounters an obstacle during
a power open or close cycle, the liftgate will
automatically reverse direction and move a
short distance away from the obstacle. After
removing the obstruction, the power liftgate
operation can be used again. If the liftgate
encounters multiple obstacles on the same
power cycle, the power function will
deactivate. After removing the obstructions,
manually close the liftgate. This will allow
normal power operation functions to
resume.
If the vehicle is locked while the liftgate is
closing, and an obstacle is encountered that
prevents the liftgate from completely
closing, the horn will sound as an alert that
the liftgate did not close.
Setting the 3/4 Mode
To change the position the liftgate stops at
when opening:
1. Select MAX or 3/4 mode and power open the liftgate.
2. Stop the liftgate movement at the desired height by pressing any liftgate
button. Manually adjust the liftgate
position if needed.
3. Press and hold
lon the bottom edge
of the liftgate next to the latch on the
outside of the liftgate until the turn
signals flash and a beep sounds. This
indicates the setting has been recorded.
The liftgate cannot be set below a minimum
programmable height. If there is no light
flash or sound, then the height adjustment
may be too low.
Manual Operation
Select OFF to manually operate the liftgate.
See “Manual Liftgate” at the beginning of
this section.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
24 Keys, Doors, and Windows
Power Assist Steps
{Warning
To avoid personal injury or property
damage, before entering or exiting the
vehicle, be sure the power assist step is
fully extended. Do not step on the power
assist step while it is moving. Never place
hands or other body parts between the
extended power assist step and the
vehicle.
If equipped, the power assist steps will
deploy when the door is opened and
automatically retract three seconds after the
door is closed. The power assist steps will
retract immediately if the vehicle starts
moving.
Disable the power assist steps before jacking
or placing any object under the vehicle. Too
much ice buildup may prevent deployment
of the power assist steps. Check the step
position before exiting the vehicle. If this
happens, disable the power assist steps,
clear the ice, then enable the assist steps
and confirm normal function prior to use. Keep hands, children, pets, objects, and
clothing clear of the power assist steps
when in motion. The steps will reverse
direction if they encounter an obstruction
when opening or closing. Remove the
obstruction, then open and close the door
on the same side to complete the motion of
the assist steps. If the obstruction is not
cleared, the assist steps remain extended
while driving.
Both power assist steps can extend or
retract for cleaning. To view available
settings from the infotainment screen, touch
Settings > Vehicle > Remote Lock, Unlock,
Start.
Enable/Disable
To view available settings from the
infotainment screen, touch Settings >
Vehicle > Remote Lock, Unlock, Start.
Vehicle Security
This vehicle has theft-deterrent features;
however, they do not make the vehicle
impossible to steal.
Vehicle Alarm System
The indicator light, on the driver door near
the window, indicates the status of the
system. See
Power Door Locks 015
Arming the Alarm System
1. Turn off the vehicle.
2. Lock the vehicle in one of three ways:
.Use the remote key.
.Use the Keyless Access system.
.With a door open, pressQon the
interior of the door.
3. After 30 seconds the alarm system will arm, and the indicator light will begin to
slowly flash. Pressing
Qon the remote

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
Keys, Doors, and Windows 25
key a second time will bypass the
30-second delay and immediately arm
the alarm system.
The vehicle alarm system will not arm if the
doors are locked with the mechanical key.
If the driver door is opened without first
unlocking with the remote key, the horn will
chirp and the lights will flash to indicate
pre-alarm. If the vehicle is not started,
or the door is not unlocked by pressing
K
on the remote key during the 10-second
pre-alarm, the alarm will be activated.
The alarm will also be activated if a
passenger door, the liftgate, or the hood is
opened without first disarming the system.
When the alarm is activated, the turn
signals flash and the horn sounds for about
30 seconds. The alarm system will then
re-arm to monitor for the next unauthorized
event.
Disarming the Alarm System
To disarm the alarm system or turn off the
alarm if it has been activated:
.PressKon the remote key.
.Unlock the vehicle using the Keyless
Access system.
.Start the vehicle. To avoid setting off the alarm by accident:
.Lock the vehicle after all occupants have
exited.
.Always unlock a door with the remote
key, or use the Keyless Access system.
Unlocking the driver door with the
mechanical key will not disarm the
system or turn off the alarm.
How to Detect a Tamper Condition
IfKis pressed on the remote key and the
horn chirps three times, an alarm occurred
previously while the alarm system was
armed.
If the alarm has been activated, a message
will appear on the DIC.
Steering Column Lock
If equipped, the steering column lock is a
theft-deterrent device. This feature locks the
steering column when the vehicle is turned
off and the driver door is opened, or when
the driver door is opened and then the
vehicle is turned off. The steering column
unlocks when the vehicle is turned on.
The Driver Information Center (DIC) may
display one of these messages:
.A message to service the steering column
lock indicates that an issue has been
detected with the column lock feature
and the vehicle should be serviced.
.A message that the steering column is
locked indicates that the engine is
running, but the steering column is still
locked. It is normal for the column to be
locked during a remote start, but the
column should unlock after the brake
pedal is pressed and the vehicle is started.
No message will display during a remote
start.
.A message that the steering wheel must
be turned and the vehicle must be started
again indicates that the column lock
mechanism is bound, the column locking
device was unable to unlock the steering
column, and the vehicle did not start.
If this happens, immediately turn the
steering wheel from side to side to
unbind the column lock. If this does not
unlock the steering column, turn the
vehicle off and open the driver door to
reset the system. Then turn the vehicle
on and immediately turn the steering
wheel side to side for about 15 seconds.
In some cases, it may take significant
force to unbind the column.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
28 Keys, Doors, and Windows
Resetting the Power Folding Mirrors
Reset the power folding mirrors if:
.The mirrors are accidentally obstructed
while folding.
.They are accidentally manually folded/
unfolded.
.The mirrors do not stay in the unfolded
position.
.The mirrors vibrate at normal driving
speeds.
Fold and unfold the mirrors one time using
the mirror controls to reset them to their
normal position. A noise may be heard
during the resetting of the power folding
mirrors. This sound is normal after a manual
folding operation.
Remote Mirror Folding
If equipped with power folding mirrors and
the mirrors have been folded with the
power folding mirror switch, they may not
be unfolded by use of remote key.
If equipped with power folding mirrors and
the mirrors have not been folded with the
power folding mirror switch and the vehicle
is in P (Park), they may be automatically
folded/unfolded as follows: 1. If doors are locked by double pressing
Q
on the remote key for one second, the
mirrors will fold. If doors are unlocked by
double pressing
Kon the remote key
for one second, the mirrors will unfold.
See Remote Key Operation 08.
2. If doors are locked by pressing the door handle button, the mirrors will fold.
If doors are unlocked by pressing the
door handle button, the mirrors will
unfold. See “Keyless Unlocking/Locking
from the Driver Door” inRemote Key
Operation 08.
3. If passive locking is enabled and doors are locked by that feature, the mirrors
will fold. See “Passive Locking” inRemote
Key Operation 08.
Heated Mirrors
K:Press to heat the mirrors.
See “Rear Window Defogger” underDual
Automatic Climate Control System 0186.
Automatic Dimming Mirror
If equipped, the driver outside mirror
automatically adjusts for the glare of the
headlamps from behind. This feature comes
on when the vehicle is started.
Reverse Tilt Mirrors
If equipped with reverse tilt mirrors and
memory seats, the passenger and/or driver
mirror tilts to a preselected position when
the vehicle is in R (Reverse). This allows the
curb to be seen when parallel parking.
The mirror(s) may move from their tilted
position when:
.The vehicle is shifted out of R (Reverse),
or remains in R (Reverse) for about
30 seconds.
.The vehicle is turned off.
.The vehicle is driven in R (Reverse) above
a set speed.
To view available settings from the
infotainment screen, touch Settings >
Vehicle > Comfort and Convenience.
Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear view
of the area behind the vehicle.
Do not spray glass cleaner directly on the
mirror. Use a soft towel dampened with
water.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
Keys, Doors, and Windows 31
See your dealer for service if a blue screen
and
3are displayed in the mirror, and
the display shuts off. Also, push the tab as
indicated to return to the automatic
dimming mode.
The Rear Camera Mirror may not work
properly or display a clear image if:
.There is glare from the sun or headlamps.
This may obstruct objects from view.
If needed, push the tab to turn off the
display.
.Dirt, snow, or other debris blocks the
camera lens. Clean the lens with a soft
damp cloth, or, if equipped, with the Rear
Camera Washer. See Rear Window Wiper/
Washer 096.
.The camera’s mounting on the vehicle has
been damaged, and/or the position or the
mounting angle of the camera has
changed.
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 key in a
vehicle with children. When there are (Continued)