2020 BUICK ENCLAVE ECU

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Keys, Doors, and Windows 7
Keys, Doors, and
Windows Keys and Locks Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Keyless Entry (RKE)
System . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Keyless Entry (RKE)
System Operation . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . 15
Door Locks . . . . . . . . . . . . . . . . . . . . 17
Power Door Locks . . . . . . . . . . . . . 19
Delayed Locking . . . . . . . . . . . . . . . 19
Automatic Door Locks . . . . . . . . . 19
Lockout Protection . . . . . . . . . . . . . 20
Safety Locks . . . . . . . . . . . . . . . . . . . 20
Doors Liftgate . . . . . . . . . . . . . . . . . . . . . . . . 21
Vehicle Security Vehicle Security . . . . . . . . . . . . . . . . 28
Vehicle Alarm System . . . . . . . . . 28
Immobilizer . . . . . . . . . . . . . . . . . . . . 29
Immobilizer Operation . . . . . . . . . 29
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . 30
Power Mirrors . . . . . . . . . . . . . . . . . . 30 Folding Mirrors . . . . . . . . . . . . . . . . . 30
Heated Mirrors . . . . . . . . . . . . . . . . . 31
Automatic Dimming Mirror . . . . . 31
Reverse Tilt Mirrors . . . . . . . . . . . . 31
Interior Mirrors Interior Rearview Mirrors . . . . . . . 32
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . 32
Rear Camera Mirror . . . . . . . . . . . . 32
Windows Windows . . . . . . . . . . . . . . . . . . . . . . . 34
Power Windows . . . . . . . . . . . . . . . 34
Sun Visors . . . . . . . . . . . . . . . . . . . . . 36
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 37 Keys and Locks Keys
{ WarningLeaving 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.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Keys, Doors, and Windows 19To replace the cap:
1. Pull the door handle to the
open position and hold it open
until cap installation is
complete.
2. Position the bottom edge of the
cap under the lower edge of
the metal piece (2). The
tabs (3) attach to the metal
piece (2) at the positions (1).
3. Rotate the cap upward and
install into place.
4. Check that the cap is secure.
Free-Turning Locks The door key lock cylinder turns
freely when either the wrong key is
used, or the correct key is not fully
inserted. The free-turning door lock
feature prevents the lock from being
forced open. To reset the lock, turn
it to the vertical position with the
correct key fully inserted. Remove
the key and insert it again. If this
does not reset the lock, turn the key
halfway around in the cylinder and
repeat the reset procedure. Power Door Locks
Q : Press to lock the doors.
K : Press to unlock the doors.
Delayed Locking This feature delays the locking of
the doors until five seconds after all
doors are closed.
Delayed locking can only be turned
on when the Open Door
Anti-Lockout feature has been
turned off. When
Q is pressed on the power
door lock switch while the door is
open, a chime will sound three
times indicating delayed locking is
active.
The doors will lock automatically
five seconds after all doors are
closed. If a door is reopened before
that time, the five-second timer will
reset when all doors are closed
again.
Press
Q on the door lock switch
again or press
Q on the RKE
transmitter to lock the doors
immediately.
This feature can also be
programmed. See Vehicle
Personalization 0 137 .
Automatic Door Locks The doors will lock automatically
when all doors are closed, the
ignition is on, and the vehicle is
shifted out of P (Park).
If a vehicle door is unlocked and
then opened and closed, the doors
will lock either when your foot is

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
22 Keys, Doors, and Windows (RKE) transmitter twice within
five seconds. See Remote Keyless
Entry (RKE) System Operation 0 8 .
To open the liftgate, press the touch
pad under the liftgate handle and
lift up.
With Keyless Access, the liftgate
can be opened when locked if the
RKE transmitter is within 1 m (3 ft)
of the liftgate. See Remote Keyless
Entry (RKE) System Operation 0 8 .
Use the pull cup to lower and close
the liftgate. Do not press the touch
pad while closing the liftgate. This
may cause the liftgate to be
unlatched. 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.
Always close the liftgate before
driving.
Power Liftgate Operation
{ WarningYou 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. The power liftgate switch is on the
driver door. 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 manually opened
all the way.
.
OFF: Opens manually only.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
28 Keys, Doors, and Windows
Vehicle Security This vehicle has theft-deterrent
features; however, they do not make
the vehicle impossible to steal.
Vehicle Alarm System This vehicle has an anti-theft alarm
system.
The indicator light, on the
instrument panel near the
windshield, indicates the status of
the system.
Off : Alarm system is disarmed. On Solid : Vehicle is secured
during the delay to arm the system.
Fast Flash : Vehicle is unsecured.
A door, the hood, or the liftgate
is open.
Slow Flash : Alarm system is
armed.
Arming the Alarm System 1. Close the liftgate and the hood.
Turn off the vehicle.
2. Lock the vehicle in one of
three ways:
.
Use the RKE transmitter.
.
Use the Keyless Access
system.
.
With a door open, press the
inside
Q .
3. After 30 seconds the alarm
system will arm, and the
indicator light will begin to
slowly flash indicating the
alarm system is operating.
Pressing
Q on the RKE
transmitter 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 key.
If the driver door is opened without
first unlocking with the RKE
transmitter, 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 RKE
transmitter 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.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Keys, Doors, and Windows 29Disarming the Alarm System To disarm the alarm system or turn
off the alarm if it has been activated:
.
Press
K on the RKE transmitter.
.
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 left the vehicle
and all doors are closed.
.
Always unlock a door with the
RKE transmitter or use the
Keyless Access system.
Unlocking the driver door with the
key will not disarm the system or
turn off the alarm.
How to Detect a Tamper
Condition
If
K is pressed and the horn chirps
and the lights flash three times, the
alarm was activated while the alarm
system was armed. If the alarm system has been
activated, a message will appear on
the DIC.
Immobilizer See Radio Frequency Statement
0 354 .
Immobilizer Operation This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the vehicle is
turned off.
The immobilization system is
disarmed when the ignition is on or
in ACC/ACCESSORY and a valid
transmitter is present in the vehicle. The security light, in the instrument
cluster, comes on if there is a
problem with arming or disarming
the theft-deterrent system.
The system has one or more RKE
transmitters matched to an
immobilizer control unit in your
vehicle. Only a correctly matched
RKE transmitter will start the
vehicle. If the transmitter is ever
damaged, you may not be able to
start your vehicle.
When trying to start the vehicle, the
security light may come on briefly
when the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the vehicle will not change ignition
modes, and the RKE transmitter
appears to be undamaged, try
another transmitter. Or, you may try
placing the transmitter in the
transmitter pocket located in the
center console. See Remote
Keyless Entry (RKE) System
Operation 0 8 .

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Seats and Restraints 39
Seats and
Restraints Head Restraints Head Restraints . . . . . . . . . . . . . . . 40
Front Seats Power Seat Adjustment . . . . . . . . 42
Lumbar Adjustment . . . . . . . . . . . . 42
Reclining Seatbacks . . . . . . . . . . . 43
Memory Seats . . . . . . . . . . . . . . . . . 43
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . 46
Massage . . . . . . . . . . . . . . . . . . . . . . . 48
Rear Seats Rear Seats . . . . . . . . . . . . . . . . . . . . 48
Heated Rear Seats . . . . . . . . . . . . 51
Third Row Seats . . . . . . . . . . . . . . . 51
Seat Belts Seat Belts . . . . . . . . . . . . . . . . . . . . . 54
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . 55
Lap-Shoulder Belt . . . . . . . . . . . . . 57
Seat Belt Use During
Pregnancy . . . . . . . . . . . . . . . . . . . . 59
Seat Belt Extender . . . . . . . . . . . . . 60
Safety System Check . . . . . . . . . . 60 Seat Belt Care . . . . . . . . . . . . . . . . . 60
Replacing Seat Belt System
Parts after a Crash . . . . . . . . . . . 61
Airbag System Airbag System . . . . . . . . . . . . . . . . . 61
Where Are the Airbags? . . . . . . . 63
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . 65
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . 66
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 66
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . 67
Passenger Sensing System . . . 68
Servicing the Airbag-Equipped
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 72
Adding Equipment to the
Airbag-Equipped Vehicle . . . . . 72
Airbag System Check . . . . . . . . . . 73
Replacing Airbag System Parts
after a Crash . . . . . . . . . . . . . . . . . 74
Child Restraints Older Children . . . . . . . . . . . . . . . . . 74
Infants and Young Children . . . . 76
Child Restraint Systems . . . . . . . 78
Where to Put the Restraint . . . . . 80
Lower Anchors and Tethers for
Children (LATCH System) . . . . 81 Replacing LATCH System Parts
After a Crash . . . . . . . . . . . . . . . . . 90
Securing Child Restraints (With
the Seat Belt in the
Rear Seat) . . . . . . . . . . . . . . . . . . . 91
Securing Child Restraints (With
the Seat Belt in the
Front Seat) . . . . . . . . . . . . . . . . . . . 93

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Seats and Restraints 41The height of the head restraint can
be adjusted. Pull the head restraint
up to raise it. Try to move the head
restraint to make sure that it is
locked in place.
To lower the head restraint, press
the button, located on the top of the
seatback, and push the head
restraint down. Try to move the
head restraint after the button is
released to make sure that it is
locked in place. Always adjust the head restraint so
that the top of the restraint is at the
same height as the top of the
occupant's head.
If you are installing a child restraint
in the rear seat, see “ Securing a
Child Restraint Designed for the
LATCH System ” under Lower
Anchors and Tethers for Children
(LATCH System) 0 81 .
Third Row Seats
The vehicle ’ s third row seats have
head restraints in the outboard
seating positions that cannot be
adjusted up or down.
The third row outboard head
restraints are not removable.
The third row outboard head
restraints are designed to be folded.
The head restraint can be folded to
allow for better visibility when the
rear seat is unoccupied. When folding the seatback down,
the head restraint will automatically
fold out of the way as the seat is
folded down.
Return the lowered head restraint to
the upright position until it locks into
place. Push and pull on the head
restraint to make sure it is locked.
When an occupant is in the seat,
always return the head restraint to
the upright position. Pull the head
restraint up and push it rearward
until it locks into place. Push and
pull on the head restraint to make
sure that it is locked.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Seats and Restraints 537. Push the seatback forward to
lay flat.
8. Repeat for the other seatback,
if necessary.
Returning the Seat to the
Seating Position To return the seatback to the
seating position:
1. From the rear of the vehicle,
raise the seatback to the
upright position using the pull
strap on the back of the third
row seat, or lift the seatback
and push it into place from
inside the vehicle.
{ Warning
If either seatback is not locked, it
could move forward in a sudden
stop or crash. That could cause
injury to the person sitting there.
Always push and pull on the
seatbacks to be sure they are
locked. 2. Push and pull on the seatback
to make sure it is locked in
place.
{ WarningA seat belt that is improperly
routed, not properly attached,
or twisted will not provide the
protection needed in a crash. The
person wearing the belt could be
seriously injured. After raising the
rear seatback, always check to be
sure that the seat belts are
properly routed and attached, and
are not twisted.
3. Reconnect the center seat belt
mini-latch to the mini-buckle.
Do not let it twist.
4. Pull on the seat belt to be sure
the mini-latch is secure. Power Seatback Folding
If equipped, the third row seatbacks
can also be folded forward and
returned to the upright position by
pressing and holding the switches
on the passenger side of the rear
cargo area.