
Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Driving and Operating 225
A system unavailable message may
display if:
.The front of the vehicle or
windshield is not clean.
. Heavy rain or snow is interfering
with object detection.
. There is a problem with the
StabiliTrak/Electronic Stability
Control (ESC) system.
The FAB system does not need
service.
Front Pedestrian Braking
(FPB) System
If equipped, the FPB system may
help avoid or reduce the harm
caused by front-end crashes with
nearby pedestrians when driving in
a forward gear. FPB displays an
amber indicator,
~, when a nearby
pedestrian is detected directly
ahead. When approaching a
detected pedestrian too quickly,
FPB provides a red flashing alert on
the windshield and rapidly beeps.
FPB can provide a boost to braking
or automatically brake the vehicle. This system includes Intelligent
Brake Assist (IBA), and the Forward
Automatic Braking (FAB) System
may also respond to pedestrians.
See
Forward Automatic Braking
(FAB) 0223.
The FPB system can detect and
alert to pedestrians in a forward
gear at speeds between 8 km/h
(5 mph) and 80 km/h (50 mph).
During daytime driving, the system
detects pedestrians up to a distance
of approximately 40 m (131 ft).
During nighttime driving, system
performance is very limited.
{Warning
FPB does not provide an alert or
automatically brake the vehicle,
unless it detects a pedestrian.
FPB may not detect pedestrians,
including children: . When the pedestrian is not
directly ahead, fully visible,
or standing upright, or when
part of a group.
(Continued)
Warning (Continued)
.Due to poor visibility,
including nighttime
conditions, fog, rain,
or snow.
. If the FPB sensor is blocked
by dirt, snow, or ice.
. If the headlamps or
windshield are not cleaned
or in proper condition.
Be ready to take action and apply
the brakes. For more information,
see Defensive Driving 0180.
Keep the windshield, headlamps,
and FPB sensor clean and in
good repair.
FPB can be set to Off, Alert, or Alert
& Brake through vehicle
personalization. See “Front
Pedestrian Detection” in“Collision/
Detection Systems” underVehicle
Personalization 0153.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Driving and Operating 227
Warning (Continued)
Automatic Braking, firmly press
the accelerator pedal, if it is safe
to do so.
Automatic Braking can be disabled
through vehicle personalization. See
“Collision/Detection Systems” under
Vehicle Personalization 0153.
{Warning
Using the Front Pedestrian
Braking system while towing a
trailer could cause you to lose
control of the vehicle and crash.
Turn the system to Alert or Off
when towing a trailer.
Cleaning the System
If FPB does not seem to operate
properly, cleaning the outside of the
windshield in front of the rearview
mirror may correct the issue.
Side Blind Zone
Alert (SBZA)
If equipped, the SBZA system is a
lane-changing aid that assists
drivers with avoiding crashes that
occur with moving vehicles in the
side blind zone (or spot) areas.
When the vehicle is in a forward
gear, the left or right side mirror
display will light up if a moving
vehicle is detected in that blind
zone. If the turn signal is activated
and a vehicle is also detected on
the same side, the display will flash
as an extra warning not to change
lanes. Since this system is part of
the Lane Change Alert (LCA)
system, read the entire LCA section
before using this feature.
Lane Change Alert (LCA)
If equipped, the LCA system is a
lane-changing aid that assists
drivers with avoiding lane change
crashes that occur with moving
vehicles in the side blind zone (or
spot) areas or with vehicles rapidly
approaching these areas from behind. The LCA warning display
will light up in the corresponding
outside side mirror and will flash if
the turn signal is on.
{Warning
LCA does not alert the driver to
vehicles outside of the system
detection zones, pedestrians,
bicyclists, or animals. It may not
provide alerts when changing
lanes under all driving conditions.
Failure to use proper care when
changing lanes may result in
injury, death, or vehicle damage.
Before making a lane change,
always check mirrors, glance over
your shoulder, and use the turn
signals.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
228 Driving and Operating
LCA Detection Zones
1. SBZA Detection Zone
2. LCA Detection Zone
The LCA sensor covers a zone of
approximately one lane over from
both sides of the vehicle, or 3.5 m
(11 ft). The height of the zone is
approximately between 0.5 m (1.5 ft)
and 2 m (6 ft) off the ground. The
Side Blind Zone Alert (SBZA)
warning area starts at approximately
the middle of the vehicle and goes
back 5 m (16 ft). Drivers are also
warned of vehicles rapidly
approaching from up to 50 m (164 ft)
behind the vehicle.
How the System Works
The LCA symbol lights up in the
side mirrors when the system
detects a moving vehicle in the next
lane over that is in the side blind
zone or rapidly approaching that
zone from behind. A lit LCA symbol
indicates it may be unsafe to
change lanes. Before making a lane
change, check the LCA display,
check mirrors, glance over your
shoulder, and use the turn signals.
Left Side MirrorDisplayRight Side Mirror Display
When the vehicle is started, both
outside mirror LCA displays will
briefly come on to indicate the
system is operating. When the
vehicle is in a forward gear, the left
or right side mirror display will light
up if a moving vehicle is detected in
the next lane over in that blind zone or rapidly approaching that zone.
If the turn signal is activated in the
same direction as a detected
vehicle, this display will flash as an
extra warning not to change lanes.
LCA can be disabled through
vehicle personalization using the
Lane Change Alert option. See
“Collision/Detection Systems”
under
Vehicle Personalization 0153.
If LCA is disabled by the driver, the
LCA mirror displays will not light up.
When the System Does Not
Seem to Work Properly
The LCA system requires some
driving for the system to calibrate to
maximum performance. This
calibration may occur more quickly if
the vehicle is driving on a straight
highway road with traffic and
roadside objects (e.g., guardrails,
barriers).
LCA displays may not come on
when passing a vehicle quickly, for
a stopped vehicle, or when towing a
trailer. The LCA detection zones
that extend back from the side of
the vehicle do not move further back

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Index 385
OnStar Security . . . . . . . . . . . . . . . . 368
OperationFog Lamps . . . . . . . . . . . . . . . . . . . 166
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . .119
Overheating, Engine . . . . . . . . . . . . 260
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 195
Shifting Out of . . . . . . . . . . . . . . . . 196
Park Assist . . . . . . . . . . . . . . . . . . . . . 219
Parking
Brake and P (Park)Mechanism Check . . . . . . . . . . 265
Extended . . . . . . . . . . . . . . . . . . . . . 197
Over Things That Burn . . . . . . . 197
Parking or Backing Assistance Systems . . . . . . . . . . 219
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . 134
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Passenger Sensing System . . . . . 84
Pedestrian Protection System . . . . . . . . . . . . . . . . . . . . . . . . 107
Perchlorate Materials Requirements, California . . . . . . 246 Personalization
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 153
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 39
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Outlets . . . . . . . . . . . . . . . . . . . . . . . .119
Protection, Battery . . . . . . . . . . . . 168
Retained Accessory (RAP) . . . 195
Seat Adjustment . . . . . . . . . . . . . . . . 61
Windows . . . . . . . . . . . . . . . . . . . . . . . 53
Pregnancy, Using Seat Belts . . . . 76
Privacy
Vehicle Data Recording . . . . . . . 364
Program Courtesy Transportation . . . . . . 358
Prohibited Fuels . . . . . . . . . . . . . . . . 232
Proposition
65 Warning,
California . . . . . . . . . . . .245, 264, 319, Back Cover
Publication Ordering
Information . . . . . . . . . . . . . . . . . . . . 361
R
Radio Frequency Statement . . . . 362
Reading Lamps . . . . . . . . . . . . . . . . . 167
Rear Seats . . . . . . . . . . . . . . . . . . . . . . 68
Rear Vision Camera (RVC) . . . . . 219 Rear Window Washer/Wiper . . . . 118
Rearview Mirrors
Automatic Dimming . . . . . . . . . . . . . 52
Reclining Seatbacks . . . . . . . . . . . . . 62
Recommended Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . . . 345
Records Maintenance . . . . . . . . . . . . . . . . . . 347
Recreational Vehicle Towing . . . . 322
Reimbursement Program,
GM Mobility . . . . . . . . . . . . . . . . . . . 356
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . . 29
Remote Vehicle Start . . . . . . . . . . . . 35
Replacement Parts
Airbags . . . . . . . . . . . . . . . . . . . . . . . . . 90
Maintenance . . . . . . . . . . . . . . . . . . 346
Replacing Airbag System . . . . . . . . 90
Replacing LATCH System Parts after a Crash . . . . . . . . . . . . 102
Replacing Seat Belt System Parts after a Crash . . . . . . . . . . . . . 77
Reporting Safety Defects
Canadian Government . . . . . . . . 363
General Motors . . . . . . . . . . . . . . . 364
U.S. Government . . . . . . . . . . . . . 363

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
388 Index
TowingDriving Characteristics . . . . . . . . 235
Equipment . . . . . . . . . . . . . . . . . . . . 241
General Information . . . . . . . . . . 235
Recreational Vehicle . . . . . . . . . . 322
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 239
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 322
Traction Control System(TCS)/StabiliTrak Light . . . . . . 140
Off Light . . . . . . . . . . . . . . . . . . . . . . 139
Selective Ride Control . . . . . . . . 207
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 205
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . 239
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 198
Fluid, Automatic . . . . . . . . . . . . . . 254
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . 358
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 165
Turn Signal Bulb Replacement . . . . . . . . . . . . 270U
Uniform Tire Quality Grading . . . 295
Universal Remote System . . . . . . 158
Operation . . . . . . . . . . . . . . . . . . . . . 161
Programming . . . . . . . . . . . . . . . . . 158
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 49
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 180
Identification Number (VIN) . . . 348
Load Limits . . . . . . . . . . . . . . . . . . . 186
Messages . . . . . . . . . . . . . . . . . . . . 152
Personalization . . . . . . . . . . . . . . . 153
Remote Start . . . . . . . . . . . . . . . . . . . 35
Security . . . . . . . . . . . . . . . . . . . . . . . . 49
Speed Messages . . . . . . . . . . . . . 153
Towing . . . . . . . . . . . . . . . . . . . . . . . . 322
Vehicle Ahead Indicator . . . . . . . . 139
Vehicle Care Storing the Tire Sealantand Compressor Kit . . . . . . . . . 313
Tire Pressure . . . . . . . . . . . . . . . . . 285
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 364
Ventilation, Air . . . . . . . . . . . . . . . . . . 176 Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Voltmeter Gauge . . . . . . . . . . . . . . . 132
W
Warning
Brake System Light . . . . . . . . . . . 137
Caution and Danger . . . . . . . . . . . . . 3
Lane Departure (LDW) . . . . . . . 229
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 123
Warnings Hazard Flashers . . . . . . . . . . . . . . 165
Washer Fluid . . . . . . . . . . . . . . . . . . . 261
Wheels Alignment and Tire Balance . . 297
Different Size . . . . . . . . . . . . . . . . . 295
Replacement . . . . . . . . . . . . . . . . . 297
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Where to Put the Restraint . . . . . . 96
Windows . . . . . . . . . . . . . . . . . . . . . . . . 53 Power . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Windshield Replacement . . . . . . . . . . . . . . . . . 267
Wiper/Washer . . . . . . . . . . . . . . . . .117
Winter
Driving . . . . . . . . . . . . . . . . . . . . . . . . 184
Winter Tires . . . . . . . . . . . . . . . . . . . . 279