
Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
28 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . 29
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . 29
Remote Vehicle Start . . . . . . . . . . 35
Door Locks . . . . . . . . . . . . . . . . . . . . 37
Power Door Locks . . . . . . . . . . . . . 39
Delayed Locking . . . . . . . . . . . . . . . 39
Automatic Door Locks . . . . . . . . . 39
Lockout Protection . . . . . . . . . . . . . 40
Safety Locks . . . . . . . . . . . . . . . . . . . 40
Doors
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . 41
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . 49
Vehicle Alarm System . . . . . . . . . 49
Immobilizer . . . . . . . . . . . . . . . . . . . . 50
Immobilizer Operation . . . . . . . . . 50
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . 51
Power Mirrors . . . . . . . . . . . . . . . . . . 51 Folding Mirrors . . . . . . . . . . . . . . . . . 52
Heated Mirrors . . . . . . . . . . . . . . . . . 52
Reverse Tilt Mirrors . . . . . . . . . . . . 52
Interior Mirrors
Interior Rearview Mirrors . . . . . . . 52
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . 52
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . 53
Power Windows . . . . . . . . . . . . . . . 53
Sun Visors . . . . . . . . . . . . . . . . . . . . . 55
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 55
Keys and Locks
Keys
{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.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
50 Keys, Doors, and Windows
the lights will flash to indicate
pre-alarm. If the vehicle is not
started, or the door is not unlocked
by pressing
Kon the RKE
transmitter during the 10-second
pre-alarm, the alarm will be
activated.
If a door, the hood, or the liftgate is
opened without first disarming the
system, the turn signals will flash
and the horn will sound for about
30 seconds. The alarm system will
then re-arm to monitor for the next
unauthorized event.
Disarming the Alarm System
Do one of the following to disarm
the alarm system or turn off the
alarm if it has been activated:
. Press
Kon 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
IfKis pressed on the RKE
transmitter 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.
Immobilizer
See Radio Frequency Statement
0 362.
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 transmitter
leaves the vehicle.
The immobilization system is
disarmed when ENGINE START/
STOP is pressed and a valid
transmitter is in the vehicle.
The security light in the instrument
cluster comes on when there is a
problem with arming or disarming
the theft-deterrent system.
The system has one or more
transmitters matched to an
immobilizer control unit in the
vehicle. Only a correctly matched
transmitter will start the vehicle.
If the transmitter is damaged, the
vehicle may not start.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
142 Instruments and Controls
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem. See
your dealer.
Low Fuel Warning Light
This light is near the fuel gauge and
comes on briefly when the ignition is
turned on as a check to show it is
working.
It also comes on when the fuel tank
is low on fuel. The light turns off
when fuel is added. If it does not,
have the vehicle serviced.
Security Light
The security light should come on
briefly as the engine is started. If it
does not come on, have the vehicle
serviced by your dealer. If the
system is working normally, the
indicator light turns off.
If the light stays on and the engine
does not start, there could be a
problem with the theft-deterrent
system. SeeImmobilizer Operation
0 50.
High-Beam On Light
This light comes on when the
high-beam headlamps are in use.
See Headlamp High/Low-Beam
Changer 0163.
Adaptive Forward
Lighting (AFL) Light
This light should come on briefly as
the vehicle is started. If it does not
come on, have the vehicle serviced
by your dealer.
This light comes on solid when
there is a problem with the AFL
system. It flashes when the system
is switching between lighting
modes. See Adaptive Forward
Lighting (AFL) 0164.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Index 383
High-Speed Operation . . . . . . . . . . 286
Hill and Mountain Roads . . . . . . . . 183
Hill Start Assist (HSA) . . . . . . . . . . 204
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . . 72
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
I
Ignition Positions . . . . . . . . . . . . . . . 190
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 50
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . 139
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 92
Information
Publication Ordering . . . . . . . . . . 361
Infotainment . . . . . . . . . . . . . . . . . . . . 170
Infotainment System . . . . . . . . . . . . 365
Instrument Cluster . . . . . . . . . . . . . . 124
Interior Rearview Mirrors . . . . . . . . . 52
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 319
K
Keyless Entry
Remote (RKE) System . . . . . . . . . 29
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
L
Labeling, Tire Sidewall . . . . . . . . . . 280
Lamps Daytime Running (DRL) . . . . . . 163
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 166
Exterior Controls . . . . . . . . . . . . . . 162
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 163
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . 168
Front Turn Signal . . . . . . . . . . . . . 270
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 135
On Reminder . . . . . . . . . . . . . . . . . 143
Reading . . . . . . . . . . . . . . . . . . . . . . 167
Lane Change Alert (LCA) . . . . . . . 227
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 229
Lane Keep Assist (LKA) . . . . . . . . 229
Lane Keep Assist Light . . . . . . . . . 139
Lap-Shoulder Belt . . . . . . . . . . . . . . . 74 LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 102
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 97
LED Lighting . . . . . . . . . . . . . . . . . . . . 269
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Lighting Adaptive Forward . . . . . . . . . . . . . 164
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 167
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Illumination Control . . . . . . . . . . . 166
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Lights Adaptive Forward Lighting(AFL) Light . . . . . . . . . . . . . . . . . . 142
Airbag Readiness . . . . . . . . . . . . . 134
Antilock Brake System (ABS) Warning . . . . . . . . . . . . . . 138
Brake System Warning . . . . . . . 137
Charging System . . . . . . . . . . . . . 135
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 135
Cruise Control . . . . . . . . . . . . . . . . 143
Door Ajar . . . . . . . . . . . . . . . . . . . . . 143
Electric Parking Brake . . . . . . . . 138
Engine Coolant Temperature Warning . . . . . . . 140

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Index 387
Specifications andCapacities . . . . . . . . . . . . . . . . . . . . . 349
Speedometer . . . . . . . . . . . . . . . . . . . 130
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 140
Start Assist, Hill . . . . . . . . . . . . . . . . . 204
Start Vehicle, Remote . . . . . . . . . . . 35
Starter Switch Check . . . . . . . . . . . 265
Starting the Engine . . . . . . . . . . . . . 192
Steering . . . . . . . . . . . . . . . . . . . . . . . . 181 Heated Wheel . . . . . . . . . . . . . . . . .117
Wheel Adjustment . . . . . . . . . . . . .117
Wheel Controls . . . . . . . . . . . . . . . .117
Stop/Start System . . . . . . . . . . . . . . 193
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . 270
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . .112
Cargo Cover . . . . . . . . . . . . . . . . . . .113
Convenience Net . . . . . . . . . . . . . .114
Front . . . . . . . . . . . . . . . . . . . . . . . . . .112
Glove Box . . . . . . . . . . . . . . . . . . . . . 111
Roof Rack System . . . . . . . . . . . . .115
Sunglasses . . . . . . . . . . . . . . . . . . . .112
Storage Compartments . . . . . . . . . 111
Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . . . 313 Struts
Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 185
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 55
Sunglass Storage . . . . . . . . . . . . . . . 112
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 221
Infotainment . . . . . . . . . . . . . 170, 365
Roof Rack . . . . . . . . . . . . . . . . . . . . .115
Systems Driver Assistance . . . . . . . . . . . . . 217
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 130
TaillampsBulb Replacement . . . . . . . . . . . . 270
Text Telephone (TTY) Users . . . . 355
Theft-Deterrent Systems . . . . . . . . . 50 Immobilizer . . . . . . . . . . . . . . . . . . . . . 50
Thigh Support Adjustment . . . . . . . 62
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278 All-Season . . . . . . . . . . . . . . . . . . . . 279
Buying New Tires . . . . . . . . . . . . . 293
Chains . . . . . . . . . . . . . . . . . . . . . . . . 298 Tires (cont'd)
Changing . . . . . . . . . . . . . . . . . . . . . 313
Compact Spare . . . . . . . . . . . . . . . 318
Designations . . . . . . . . . . . . . . . . . 282
Different Size . . . . . . . . . . . . . . . . . 295
If a Tire Goes Flat . . . . . . . . . . . . 298
Inspection . . . . . . . . . . . . . . . . . . . . 291
Low Profile . . . . . . . . . . . . . . . . . . . 279
Pressure . . . . . . . . . . . . . . . . . 285, 286
Pressure Light . . . . . . . . . . . . . . . . 141
Pressure Monitor Operation . . 288
Pressure Monitor System . . . . . 287
Rotation . . . . . . . . . . . . . . . . . . . . . . 291
Sealant and
Compressor Kit . . . . . . . . 300, 306
Sealant and Compressor Kit, Storing . . . . . . . . . . . . . . . . . . 313
Sidewall Labeling . . . . . . . . . . . . . 280
Terminology and Definitions . . 282
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 295
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 297
Wheel Replacement . . . . . . . . . . 297
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 292
Winter . . . . . . . . . . . . . . . . . . . . . . . . 279
Top Tier Fuel . . . . . . . . . . . . . . . . . . . 231