2020 BUICK REGAL turn signal bulb

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 7/1/19
150 Lighting
Hazard Warning Flashers
|:Press to make the front and
rear turn signal lamps flash on and
off. Press again to turn the
flashers off.
The hazard warning flashers turn on
automatically if the airbags deploy.
Turn and Lane-Change
Signals
Move the lever all the way up or
down to signal a turn.
An arrow on the instrument cluster
flashes in the direction of the turn or
lane change.
Raise or lower the lever until the
arrow starts to flash to signal a lane
change. Hold it there until the lane
change is completed. If the lever is
briefly pressed and released, the
turn signal flashes three times.
The turn and lane-change signal
can be turned off manually by
moving the lever back to its original
position. If after signaling a turn or lane
change the arrow flashes rapidly or
does not come on, a signal bulb
might be burned out.
Have any burned out bulbs
replaced. If the bulb is not burned
out, check the fuse. See
Fuses and
Circuit Breakers 0259.
Fog Lamps
The fog lamps button is on the
instrument panel to left of the
steering wheel.
To turn on the fog lamps, the ignition
and the headlamps or parking lamps
must be on.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
228 Driving and Operating
Tires
.Do not tow a trailer while using a
compact spare tire on the
vehicle.
. Tires must be properly inflated to
support loads while towing a
trailer. See Tires0265 for
instructions on proper tire
inflation.
Safety Chains
Always attach chains between the
vehicle and the trailer, and attach
the chains to the holes on the trailer
hitch platform. Instructions about
safety chains may be provided by
the hitch manufacturer or by the
trailer manufacturer.
Cross the safety chains under the
tongue of the trailer to help prevent
the tongue from contacting the road
if it becomes separated from the
hitch. Always leave just enough
slack so the combination can turn.
Never allow safety chains to drag on
the ground.
Trailer Brakes
State or local regulations may
require trailers to have their own
braking system if the loaded weight
of the trailer exceeds certain
minimums that can vary from state
to state. Read and follow the
instructions for the trailer brakes so
they are installed, adjusted, and
maintained properly. Never attempt
to tap into your vehicle's hydraulic
brake system. If you do, both the
vehicle antilock brakes and the
trailer brakes may not function,
which could result in a crash.
Trailer Lamps
Always check all trailer lamps are
working at the beginning of each
trip, and periodically on longer trips.
Turn Signals When Towing a
Trailer
When properly connected, the trailer
turn signals will illuminate to indicate
the vehicle is turning, changing
lanes, or stopping. When towing a
trailer, the arrows on the instrument
cluster will illuminate even if the
trailer is not properly connected or
the bulbs are burned out.
Trailer Tires
Special Trailer (ST) tires differ from
vehicle tires. Trailer tires are
designed with stiff sidewalls to help
prevent sway and to support heavy
loads. These features can make it
difficult to determine if the trailer tire
pressures are low only based on a
visual inspection.
Always check all trailer tire
pressures before each trip when the
tires are cool. Low trailer tire
pressure is a leading cause of trailer
tire blow-outs.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
230 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 231
California Proposition65 Warning . . . . . . . . . . . . . . . . . 231
California Perchlorate Materials Requirements . . . . . 232
Accessories and Modifications . . . . . . . . . . . . . . . . 232
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 232
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 233
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 235
Engine Oil . . . . . . . . . . . . . . . . . . . . 238
Engine Oil Life System . . . . . . . 240
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 241
Engine Air Cleaner/Filter . . . . . . 242
Cooling System . . . . . . . . . . . . . . 243
Engine Overheating . . . . . . . . . . 247
Washer Fluid . . . . . . . . . . . . . . . . . 248
Brakes . . . . . . . . . . . . . . . . . . . . . . . 249
Brake Fluid . . . . . . . . . . . . . . . . . . . 250
Battery - North America . . . . . . 251
All-Wheel Drive . . . . . . . . . . . . . . . 252 Starter Switch Check . . . . . . . . . 252
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 252
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . 252
Wiper Blade Replacement . . . . 253
Windshield Replacement . . . . . 254
Gas Strut(s) . . . . . . . . . . . . . . . . . . 254
Headlamp Aiming
Front Headlamp Aiming . . . . . . 255
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 256
Halogen Bulbs . . . . . . . . . . . . . . . . 256
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 256
LED Lighting . . . . . . . . . . . . . . . . . 256
Headlamps . . . . . . . . . . . . . . . . . . . 256
Fog Lamps . . . . . . . . . . . . . . . . . . . 257
Front Turn Signal Lamps . . . . . 257
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 257
Electrical System
Electrical System Overload . . . 258
Fuses and Circuit Breakers . . . 259
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 259 Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 263
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 265
All-Season Tires . . . . . . . . . . . . . . 266
Winter Tires . . . . . . . . . . . . . . . . . . 266
Low-Profile Tires . . . . . . . . . . . . . 266
Tire Sidewall Labeling . . . . . . . . 267
Tire Designations . . . . . . . . . . . . . 269
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 269
Tire Pressure . . . . . . . . . . . . . . . . . 272
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . 273
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 274
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 275
Tire Inspection . . . . . . . . . . . . . . . . 278
Tire Rotation . . . . . . . . . . . . . . . . . 279
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 280
Buying New Tires . . . . . . . . . . . . . 280
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 282
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 282
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 284
Wheel Replacement . . . . . . . . . . 284

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Vehicle Care 257
3. Disconnect the electricalconnector.
4. Remove the bulb socket from the headlamp assembly.
5. Reverse Steps 1–4 to install.
High/Low-Beam Headlamps
(Uplevel)
The high/low-beam headlamps on
the uplevel headlamp system are
Light Emitting Diode (LED) and
should be replaced by your dealer.
Fog Lamps
To replace the fog lamp bulb: 1. Locate the bulb assembly under the front fascia.
2. Disconnect the electrical connector from the bulb
assembly.
3. Remove the bulb by turning it counterclockwise and pulling it
straight out of the assembly.
4. Install the new bulb by turning it clockwise into the assembly.
5. Reconnect the electrical connector to the bulb
assembly.
Front Turn Signal Lamps
Sidemarkers, daytime running
lamps and turn signal lamps are
LEDs and cannot be changed.
See your dealer.
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps
Driver Side Shown, Passenger
Side Similar
To replace any one of these bulbs: 1. Open the liftgate. See Liftgate
0 21.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
366 Index
Armrest Storage . . . . . . . . . . . . . . . . . 95
Assistance Program,Roadside . . . . . . . . . . . . . . . . . . . . . . 344
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 207
Assistance Systems for Parking and Backing . . . . . . . . . . 204
Auto Stop Stop/Start System . . . . . . . . . . . . 178
Automatic Door Locks . . . . . . . . . . . . . . . . . . . . . 19
Emergency Braking (AEB) . . . . 209
Headlamp System . . . . . . . . . . . . 148
Transmission . . . . . . . . . . . . . . . . . 184
Transmission Fluid . . . . . . . . . . . 241
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . 186
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 252
B
BatteryExterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 154
Load Management . . . . . . . . . . . . 153
Power Protection . . . . . . . . . . . . . 153
Battery - North America . . . . 251, 306
Blade Replacement, Wiper . . . . . 253 Brake
Parking, Electric . . . . . . . . . . . . . . 188
System Warning Light . . . . . . . . 121
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 249 Antilock . . . . . . . . . . . . . . . . . . . . . . . 188
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 190
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 166 AutomaticEmergency (AEB) . . . . . . . . . . . 209
Braking System
Front Pedestrian (FPB) . . . . . . . 210
Break-In, New Vehicle . . . . . . . . . . 175
Bulb Replacement Fog Lamps . . . . . . . . . . . . . . . . . . . 257
Front Turn Signal Lamps . . . . . 257
Halogen Bulbs . . . . . . . . . . . . . . . . 256
Headlamp Aiming . . . . . . . . . . . . . 255
Headlamps . . . . . . . . . . . . . . . . . . . 256
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 256
Taillamps, Turn Signal, Stoplamps, and Back-up
Lamps . . . . . . . . . . . . . . . . . . . . . . 257
Buying New Tires . . . . . . . . . . . . . . . 280
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 102
California
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 232
California Proposition
65 Warning . . . . . . . . . .231, 251, 306, Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 337
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 183
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 21
Winter Driving . . . . . . . . . . . . . . . . 170
Cargo Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Tie-Downs . . . . . . . . . . . . . . . . . . . . . . 97
Caution, Danger, and Warning . . . . 3
Chains, Tire . . . . . . . . . . . . . . . . . . . . 285
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . 103
Charging System Light . . . . . . . . . 119
Check
Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . .119

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
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