
Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Technical Data 337
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and
Lubricants 0333 for more information.
Application Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge amount, see the refrigerant label under thehood. See your dealer for more information.
Engine Cooling System* 2.0L L4 Engine 5.0 L 5.3 qt
3.6L V6 Engine 7.2 L 7.6 qt
Engine Oil with Filter 2.0L L4 Engine (FWD) 4.7 L 5.0 qt
2.0L L4 Engine (AWD) 5.7 L 6.0 qt
3.6L V6 Engine 5.7 L 6.0 qt
Fuel Tank 62.5 L 16.5 gal
Wheel Nut Torque 140 Y100 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.
*Engine cooling system capacity values are based on the entire cooling system and its components.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
344 Customer Information
GM Mobility
Reimbursement Program
This program is available to
qualified applicants for cost
reimbursement, up to certain limits,
of eligible aftermarket adaptive
equipment required for the vehicle,
such as hand controls or a
wheelchair/scooter lift for the
vehicle.
To learn about the GM Mobility
program, see www.gmmobility.com
or call the GM Mobility Assistance
Center at 1-800-323-9935. Text
Telephone (TTY) users, call
1-800-833-9935.
General Motors of Canada also has
a Mobility program. See www.gm.ca
or call 1-800-GM-DRIVE
(800-463-7483) for details. TTY
users call 1-800-263-3830.
Roadside Assistance
Program
For U.S.-purchased vehicles, call
1-800-252-1112; (Text Telephone
(TTY): 1-888-889-2438).
For Canadian-purchased vehicles,
call 1-800-268-6800.
Service is available 24 hours a day,
365 days a year.
Calling for Assistance
When calling Roadside Assistance,
have the following information
ready:
.Your name, home address, and
home telephone number
. Telephone number of your
location
. Location of the vehicle
. Model, year, color, and license
plate number of the vehicle
. Odometer reading, Vehicle
Identification Number (VIN), and
delivery date of the vehicle
. Description of the problem
Coverage
Services are provided for the
duration of the vehicle’s powertrain
warranty.
In the U.S., anyone driving the
vehicle is covered. In Canada, a
person driving the vehicle without
permission from the owner is not
covered.
Roadside Assistance is not a part of
the New Vehicle Limited Warranty.
General Motors North America and
Buick reserve the right to make any
changes or discontinue the
Roadside Assistance program at
any time without notification.
General Motors North America and
Buick reserve the right to limit
services or payment to an owner or
driver if they decide the claims are
made too often, or the same type of
claim is made many times.
Services Provided
.Emergency Fuel Delivery:
Delivery of enough fuel for the
vehicle to get to the nearest
service station.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Index 365
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 232
Accessory Power . . . . . . . . . . . . . . . 181
Active Fuel Management . . . . . . . 182
Adaptive Cruise Control . . . . . . . . 196
Adaptive Forward Lighting (AFL) . . . . . . . . . . . . . . . . . 149
Adaptive Forward Lighting (AFL) Light . . . . . . . . . . . . . . . . . . . . 127
Add-On Electrical Equipment . . . 229
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 356
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 330
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 43
Thigh Support . . . . . . . . . . . . . . . . . . 43
Air Cleaner/Filter, Engine . . . . . . . 242
Air Conditioning . . . . . . . . . . . . . . . . 156
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 162
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 161
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 71
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 64
Passenger Sensing System . . . . 65 Airbag System (cont'd)
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 63
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 64
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 62
Where Are the Airbags? . . . . . . . . 61
Airbags
Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 70
Passenger Status Indicator . . . .118
Readiness Light . . . . . . . . . . . . . . .118
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 70
System Check . . . . . . . . . . . . . . . . . . 59
Alarm Vehicle Security . . . . . . . . . . . . . . . . 29
Alert Lane Change . . . . . . . . . . . . . . . . . 213
Side Blind Zone (SBZA) . . . . . . 213
All-Season Tires . . . . . . . . . . . . . . . . 266
All-Wheel Drive . . . . . . . . . . . . 187, 252
Antilock Brake System (ABS) . . . 188 Warning Light . . . . . . . . . . . . . . . . . 122
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 313
Interior . . . . . . . . . . . . . . . . . . . . . . . . 317

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Index 367
Child RestraintsInfants and Young Children . . . . . 73
Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . . . 78
Older Children . . . . . . . . . . . . . . . . . . 72
Securing . . . . . . . . . . . . . . . . . . . . 86, 88
Systems . . . . . . . . . . . . . . . . . . . . . . . . 76
Circuit Breakers . . . . . . . . . . . . . . . . 259
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 313
Interior Care . . . . . . . . . . . . . . . . . . 317
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . 156
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Cluster, Instrument . . . . . . . . . . . . . 107
Collision Damage Repair . . . . . . . 347
Compact Spare Tire . . . . . . . . . . . . 305
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . 94
Compass . . . . . . . . . . . . . . . . . . . . . . . 102
Compressor Kit, Tire Sealant . . . . . . . . . . . . . . . . . . . 287, 293
Connected Services Connections . . . . . . . . . . . . . . . . . . 363
Diagnostics . . . . . . . . . . . . . . . . . . . 364
Navigation . . . . . . . . . . . . . . . . . . . . 362
Connections Connected Services . . . . . . . . . . 363 Control
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 191
Control of a Vehicle . . . . . . . . . . . . . 166
Convenience Net . . . . . . . . . . . . . . . . 97
Convex Mirrors . . . . . . . . . . . . . . . . . . 31
Coolant Engine Temperature Gauge . . .115
Engine TemperatureWarning Light . . . . . . . . . . . . . . . 125
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . 156
Cooling System . . . . . . . . . . . . . . . . . 243
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . 346
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Cruise Control . . . . . . . . . . . . . . . . . . 194 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Cruise Control, Adaptive . . . . . . . . 196
Cupholders . . . . . . . . . . . . . . . . . . . . . . 94
Customer Assistance . . . . . . . . . . . 343 Offices . . . . . . . . . . . . . . . . . . . . . . . . 342
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 343
Customer Information
Publications OrderingInformation . . . . . . . . . . . . . . . . . . 349 Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 340
Cybersecurity . . . . . . . . . . . . . . . . . . . 352
D
Damage Repair, Collision . . . . . . . 347
Danger, Warning, and Caution . . . . 3
Data Collection Infotainment System . . . . . . . . . . 353
OnStar . . . . . . . . . . . . . . . . . . . . . . . 353
Data Recorders, Event . . . . . . . . . 352
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 148
Defensive Driving . . . . . . . . . . . . . . . 165
Delayed Locking . . . . . . . . . . . . . . . . . 19
Diagnostics Connected Services . . . . . . . . . . 364
Distracted Driving . . . . . . . . . . . . . . . 164
Dome Lamps . . . . . . . . . . . . . . . . . . . 151
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 128
Delayed Locking . . . . . . . . . . . . . . . . 19
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power Locks . . . . . . . . . . . . . . . . . . . . 19
Drive Belt Routing, Engine . . . . . . 339
Drive Systems All-Wheel Drive . . . . . . . . . . 187, 252
Driver Assistance Systems . . . . . 203

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Index 369
Frequency StatementRadio . . . . . . . . . . . . . . . . . . . . . . . . . 350
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . 210
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . 41
Heated and Ventilated . . . . . . . . . . 48
Front Storage . . . . . . . . . . . . . . . . . . . . 95
Front Turn Signal Lamps . . . . . . . 257
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 218
Economy, Driving for Better . . . 164
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 220
Filling the Tank . . . . . . . . . . . . . . . 218
Foreign Countries . . . . . . . . . . . . 218
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .113
Low Fuel Warning Light . . . . . . . 126
Management, Active . . . . . . . . . . 182
Prohibited Fuels . . . . . . . . . . . . . . 218
Recommended . . . . . . . . . . . . . . . 217
Top Tier . . . . . . . . . . . . . . . . . . . . . . 217
Fuses
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 259
Fuses and Circuit Breakers . . . 259 Fuses (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 263
G
Garage Door Opener . . . . . . . . . . . 143Programming . . . . . . . . . . . . . . . . . 143
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 254
Gauges Engine Coolant
Temperature . . . . . . . . . . . . . . . . .115
Engine Oil Temperature . . . . . . . .115
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .113
Odometer . . . . . . . . . . . . . . . . . . . . . .113
Speedometer . . . . . . . . . . . . . . . . . .113
Tachometer . . . . . . . . . . . . . . . . . . . .113
Voltmeter . . . . . . . . . . . . . . . . . . . . . .116
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 106
General Information Service and Maintenance . . . . . 322
Towing . . . . . . . . . . . . . . . . . . . . . . . . 221
Vehicle Care . . . . . . . . . . . . . . . . . . 231
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 94
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 344
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 256
Hazard Warning Flashers . . . . . . . 150
Head Restraints . . . . . . . . . . . . . . . . . 39
Head-up Display . . . . . . . . . . . . . . . . 133
Headlamps . . . . . . . . . . . . . . . . . . . . . 256Adaptive ForwardLighting (AFL) . . . . . . . . . . . . . . . 149
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 255
Automatic . . . . . . . . . . . . . . . . . . . . . 148
Bulb Replacement . . . . . . . . . . . . 256
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 148
Flash-to-Pass . . . . . . . . . . . . . . . . . 148
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 256
High-Beam On Light . . . . . . . . . . 127
High/Low Beam Changer . . . . . 148
Lamps On Reminder . . . . . . . . . 128
Heated Steering Wheel . . . . . . . . . . . . . . . 100
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Heated Mirrors . . . . . . . . . . . . . . . . . . . 32
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 179
Heating . . . . . . . . . . . . . . . . . . . . . . . . . 156

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
374 Index
Speedometer . . . . . . . . . . . . . . . . . . . 113
StabiliTrakOFF Light . . . . . . . . . . . . . . . . . . . . . 124
Start Assist, Hill . . . . . . . . . . . . . . . . . 190
Start Vehicle, Remote . . . . . . . . . . . 15
Starter Switch Check . . . . . . . . . . . 252
Starting the Engine . . . . . . . . . . . . . 177
Steering . . . . . . . . . . . . . . . . . . . . . . . . 166 Heated Wheel . . . . . . . . . . . . . . . . 100
Wheel Adjustment . . . . . . . . . . . . 100
Wheel Controls . . . . . . . . . . . . . . . 100
Stop/Start System . . . . . . . . . . . . . . 178
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . 257
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . . . 95
Cargo Cover . . . . . . . . . . . . . . . . . . . . 96
Convenience Net . . . . . . . . . . . . . . . 97
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Glove Box . . . . . . . . . . . . . . . . . . . . . . 94
Roof Rack System . . . . . . . . . . . . . . 98
Sunglasses . . . . . . . . . . . . . . . . . . . . . 95
Storage Compartments . . . . . . . . . . 94
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . 300
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 Stuck Vehicle . . . . . . . . . . . . . . . . . . . 171
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 35
Sunglass Storage . . . . . . . . . . . . . . . . 95
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System
Forward Collision
Alert (FCA) . . . . . . . . . . . . . . . . . . 207
Infotainment . . . . . . . . . . . . . 155, 353
Roof Rack . . . . . . . . . . . . . . . . . . . . . . 98
Systems
Driver Assistance . . . . . . . . . . . . . 203
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 113
TaillampsBulb Replacement . . . . . . . . . . . . 257
Text Telephone (TTY) Users . . . . 343
Theft-Deterrent Systems . . . . . . . . . 30 Immobilizer . . . . . . . . . . . . . . . . . . . . . 30
Thigh Support Adjustment . . . . . . . 43
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
All-Season . . . . . . . . . . . . . . . . . . . . 266
Buying New Tires . . . . . . . . . . . . . 280
Chains . . . . . . . . . . . . . . . . . . . . . . . . 285
Changing . . . . . . . . . . . . . . . . . . . . . 301
Compact Spare . . . . . . . . . . . . . . . 305 Tires (cont'd)
Designations . . . . . . . . . . . . . . . . . 269
Different Size . . . . . . . . . . . . . . . . . 282
If a Tire Goes Flat . . . . . . . . . . . . 285
Inspection . . . . . . . . . . . . . . . . . . . . 278
Low Profile . . . . . . . . . . . . . . . . . . . 266
Pressure . . . . . . . . . . . . . . . . . 272, 273
Pressure Light . . . . . . . . . . . . . . . . 125
Pressure Monitor Operation . . 275
Pressure Monitor System . . . . . 274
Rotation . . . . . . . . . . . . . . . . . . . . . . 279
Sealant and
Compressor Kit . . . . . . . . 287, 293
Sealant and Compressor
Kit, Storing . . . . . . . . . . . . . . . . . . 300
Sidewall Labeling . . . . . . . . . . . . . 267
Terminology and Definitions . . 269
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 282
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 284
Wheel Replacement . . . . . . . . . . 284
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 280
Winter . . . . . . . . . . . . . . . . . . . . . . . . 266
Top Tier Fuel . . . . . . . . . . . . . . . . . . . 217

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Index 375
TowingDriving Characteristics . . . . . . . . 221
Equipment . . . . . . . . . . . . . . . . . . . . 227
General Information . . . . . . . . . . 221
Recreational Vehicle . . . . . . . . . . 310
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 225
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 309
Traction Control System(TCS)/StabiliTrak Light . . . . . . 125
Off Light . . . . . . . . . . . . . . . . . . . . . . 124
Selective Ride Control . . . . . . . . 192
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 191
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . 225
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 184
Fluid, Automatic . . . . . . . . . . . . . . 241
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . 346
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 150
Turn Signal Bulb Replacement . . . . . . . . . . . . 257U
Uniform Tire Quality Grading . . . 282
Universal Remote System . . . . . . 143
Operation . . . . . . . . . . . . . . . . . . . . . 146
Programming . . . . . . . . . . . . . . . . . 143
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 29
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 166
Identification Number (VIN) . . . 336
Load Limits . . . . . . . . . . . . . . . . . . . 171
Messages . . . . . . . . . . . . . . . . . . . . 137
Personalization . . . . . . . . . . . . . . . 138
Remote Start . . . . . . . . . . . . . . . . . . . 15
Security . . . . . . . . . . . . . . . . . . . . . . . . 29
Speed Messages . . . . . . . . . . . . . 138
Towing . . . . . . . . . . . . . . . . . . . . . . . . 309
Vehicle Ahead Indicator . . . . . . . . 123
Vehicle Care Storing the Tire Sealantand Compressor Kit . . . . . . . . . 300
Tire Pressure . . . . . . . . . . . . . . . . . 272 Vehicle Data Recording and
Privacy . . . . . . . . . . . . . . . . . . . . . . . . 352
Ventilation, Air . . . . . . . . . . . . . . . . . . 161
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Voltmeter Gauge . . . . . . . . . . . . . . . 116
W
Warning Brake System Light . . . . . . . . . . . 121
Caution and Danger . . . . . . . . . . . . . 3
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 106
Warnings Hazard Flashers . . . . . . . . . . . . . . 150
Washer Fluid . . . . . . . . . . . . . . . . . . . 248
Wheels Alignment and Tire Balance . . 284
Different Size . . . . . . . . . . . . . . . . . 282
Replacement . . . . . . . . . . . . . . . . . 284
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Where to Put the Restraint . . . . . . 77
Windows . . . . . . . . . . . . . . . . . . . . . . . . 33 Power . . . . . . . . . . . . . . . . . . . . . . . . . . 33