BUICK REGAL SPORTBACK 2019 Service Manual

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
40 Keys, Doors, and Windows
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:
.Press
Kon a power door lock
switch.
. Shift the transmission into
P (Park).
Automatic Door Unlock can be
programmed. See “Power Door
Locks" in Vehicle Personalization
0 153.
Lockout Protection
When locking is requested with the
driver door open and the vehicle is
on or in ACC/ACCESSORY, 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 RKE
transmitters inside. If an RKE
transmitter is detected and the
number of RKE transmitters 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.
Open Door Anti-Lockout
If Open Door Anti-Lockout is turned
on and the vehicle is off, the driver
door is open, and locking is
requested, all the doors will lock and
the driver door will remain open.
Press the button again to lock the
driver door. The Open Door
Anti-Lockout feature can be turned
on or off. See Vehicle
Personalization 0153.
Safety Locks
The rear door safety locks prevent
passengers from opening the rear
doors from inside the vehicle.
Manual Safety Locks
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.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Keys, Doors, and Windows 41
To open a rear door when the safety
lock is on:1. Unlock the door by activating the inside handle, pressing the
power door lock switch,
or 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 up 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.
(Continued)
Warning (Continued)
.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.
. If the vehicle is equipped
with a power liftgate, disable
the power liftgate function.
See Engine Exhaust 0197.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
42 Keys, Doors, and Windows
Manual Liftgate
Hatchback
To open the liftgate, press the
emblem on the end of the liftgate.
Unlocking all doors will also unlock
the liftgate.
Use the handle to lower and close
the liftgate. If equipped, 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 RKE transmitter is
within 1 m (3 ft) of the emblem. See
Remote Keyless Entry (RKE)
System Operation029.
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. Station Wagon
To open the liftgate, press the touch
pad on the bottom of the liftgate.
Use the handle to lower and close
the liftgate. Do not press the touch
pad while closing the liftgate. This
will cause the liftgate to be
unlatched.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Keys, Doors, and Windows 43
Power Liftgate Operation
(Station Wagon)
{Warning
Exhaust gases can enter the
vehicle if it is driven with the
liftgate, 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
(Continued)
Warning (Continued)
highest setting. See
“Climate Control Systems”
in the Index.
. If the vehicle has a power
liftgate, disable the power
liftgate function.
For more information about
carbon monoxide, see Engine
Exhaust 0197.
Caution
Driving with an open and
unsecured liftgate may result in
damage to the power liftgate
components.
Caution
Manually forcing the liftgate to
open or close during a power
cycle can damage the vehicle.
Allow the power cycle to
complete.
If equipped, the power liftgate can
be operated by:
.
bon the RKE transmitter.
.
8on the inside of the
driver door.
. The touch pad under the
emblem.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
44 Keys, Doors, and Windows
.|under the open liftgate.
If equipped with a power liftgate, the
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.
To power open or close the liftgate,
select MAX or 3/4 mode.
. Press
btwice on the RKE
transmitter.
. Press
8on the driver door.
The driver door must either be
unlocked or locked without the
security armed.
. Press the touch pad under the
emblem. .
Press
|under the open
liftgate.
Press any liftgate switch while the
liftgate is moving to reverse the
direction.
The power liftgate may be
temporarily disabled under extreme
low temperatures, or after repeated
power cycling over a short period of
time. If this occurs, the liftgate can
still be operated manually.
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

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Keys, Doors, and Windows 45
liftgate or a possible support strut
failure. A repetitive chime will sound
while the falling liftgate detection
feature is operating. Remove any
excess weight. 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 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.
Pinch sensors are on the side
edges of the liftgate. If an object is
caught between the liftgate and the
vehicle and presses against a
sensor, the liftgate will reverse
direction and open fully. The liftgate
will remain open until it is activated
again or closed manually.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 switch. Manually
adjust the liftgate position if
needed.
3. Press and hold
|under the
open 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.
Caution
Attempting to move the liftgate
too quickly and with excessive
force may result in damage to the
vehicle.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
46 Keys, Doors, and Windows
Operate the liftgate manually with a
smooth motion and moderate
speed. The system includes a
feature that limits the manual
closing speed to protect the
components.
Hands-Free Operation
If equipped, the liftgate may be
operated with a kicking motion
under the rear bumper at the
location of the projected logo.
The RKE transmitter must be within
1 m (3 ft) of the rear bumper to
operate the power liftgate
hands-free.The hands-free feature will not work
while the liftgate is moving. To stop
the liftgate while in motion use one
of the liftgate buttons.
The hands-free feature can be
customized. See
Vehicle
Personalization 0153. Choose from
the following:
On-Open and Close : The kicking
motion is activated to both open and
close the liftgate.
On-Open Only : The kicking motion
is activated to only open the liftgate.
Off : The feature is disabled.
Kick Zone
To operate, kick your foot straight up
in one swift motion under the rear
bumper at the location of the
projected logo, then pull it back.
Caution
Splashing water may cause the
liftgate to open. Keep the RKE
transmitter away from the rear (Continued)
Caution (Continued)
bumper detection area or turn the
liftgate mode to OFF when
cleaning or working near the rear
bumper to avoid accidental
opening.
. Do not sweep your foot side
to side.
. Do not keep your foot under the
bumper; the liftgate will not
activate.
. Do not touch the liftgate until it
has stopped moving.
This feature may be temporarily
disabled under some conditions.
If the liftgate does not respond to
the kick, open or close the liftgate
by another method or start the
vehicle. The feature will be
re-enabled.
When closing the liftgate using this
feature, there will be a short delay.
The taillamps will flash and a chime
will sound. Step away from the
liftgate before it starts moving.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Keys, Doors, and Windows 47
Projected Logo
If equipped, a vehicle logo will be
projected for one minute onto the
ground near the rear bumper when
an RKE transmitter is detected
within approximately 2 m (6 ft) from
the rear bumper. The projected logo
may not be visible under brighter
daytime conditions.
1. 1 m (3 ft) Hands-FreeOperation Detection Zone
2. 2 m (6 ft) Projected Logo Detection Zone
The projected logo shows where to
kick toward the rear bumper. The projected logo will not be
restarted using the same RKE
transmitter unless it has been out of
range for longer than 20 seconds.
If an RKE transmitter is again
detected within approximately 2 m
(6 ft) of the liftgate, or another kick
has been detected, the one-minute
timer will be reset.
The projected logo will not work
under these conditions:
.
The vehicle battery is low.
. The transmission is not in
P (Park).
. Hands Free Liftgate Operation is
set to off in vehicle
personalization. See Vehicle
Personalization 0153.
. Power liftgate is turned off.
. The vehicle remains parked for
72 hours or more, with no RKE
transmitter use or Keyless
Access operation. To re-enable,
press any button on the RKE
transmitter or open and close a
vehicle door. The projected logo will not work for
a single RKE transmitter when a
transmitter:
.
Has been left within
approximately 5 m (15 ft) of the
liftgate for several minutes.
. Has been left inside the vehicle
and all vehicle doors are closed.
. Has approached the area
outside of the liftgate five times
within 10 minutes.
Lens CleaningUse a soft, damp cloth to clean the
recessed lens.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
48 Keys, Doors, and Windows
Hands-Free Liftgate and Projected Logo Availability
ActionHands-Free Liftgate Projected Logo
RKE transmitter entering projected
logo detection zone Operative
On for one minute
RKE transmitter left inside projected
logo detection zone for minimum of
10 minutes Operative
Off until RKE transmitter button press
or a door is opened and closed
RKE transmitter brought in and out of
projected logo detection zone five
times or more within 10 minutes Operative
Off for one hour or until RKE
transmitter button press or a door is
opened and closed
Vehicle remains parked for more than
72 hours Operative
Off until RKE transmitter button press
or a door is opened and closed
Vehicle battery is low Non-operative Off
Transmission is not in P (Park) Non-operative Off
Power liftgate is turned off Non-operative Off
Hands-free liftgate is disabled in
vehicle personalization Non-operative
Off

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Keys, Doors, and Windows 49
Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
the vehicle impossible to steal.
Vehicle Alarm System
Anti-Theft Alarm System
The system monitors:
.The doors, liftgate, and hood.
. The passenger compartment
and cargo area.
. Vehicle inclination.
. The ignition. Indicator Light
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, or there is a system fault.
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
Q
on the interior of the door.
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
Qon 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