heating BUICK REGAL SPORTBACK 2019 User Guide

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Vehicle Care 257
3.6L V6 Engine
1. Engine Cooling Fans (Outof View)
2. Coolant Surge Tank and Pressure Cap
{Warning
An underhood electric fan can
start up even when the engine is
not running and can cause injury.
Keep hands, clothing, and tools
away from any underhood
electric fan.
{Warning
Do not touch heater or radiator
hoses, or other engine parts.
They can be very hot and can
burn you. Do not run the engine if
there is a leak; all coolant could
leak out. That could cause an
engine fire and can burn you. Fix
any leak before driving the
vehicle.
Engine Coolant
The cooling system in the vehicle is
filled with DEX-COOL engine
coolant. This coolant is designed to
remain in the vehicle for five years
or 240 000 km (150,000 mi),
whichever occurs first.
The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating,
see Engine Overheating 0260.
What to Use
{Warning
Plain water, or other liquids such
as alcohol, can boil before the
proper coolant mixture will. With
plain water or the wrong mixture,
the engine could get too hot but
there would not be an overheat
warning. The engine could catch
fire and you or others could be
burned.
Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
coolant. If using this mixture,
nothing else needs to be added.
This mixture:
. Gives freezing protection down
to−37 °C (−34 °F), outside
temperature.
. Gives boiling protection up to
129 °C (265 °F), engine
temperature.
. Protects against rust and
corrosion.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
260 Vehicle Care
By this time, the coolant level
inside the coolant surge tank
may be lower. If the level is
lower, add more of the proper
mixture to the coolant surge
tank until the level reaches the
indicated level mark.
5. Replace the pressure cap tightly.
Check the level in the coolant surge
tank when the cooling system has
cooled down. If the coolant is not at
the proper level, repeat Steps 1–
3 and reinstall the pressure cap.
If the coolant still is not at the proper
level when the system cools down
again, see your dealer.
Caution
If the pressure cap is not tightly
installed, coolant loss and engine
damage may occur. Be sure the
cap is properly and tightly
secured.
Engine Overheating
The vehicle has an engine coolant
temperature gauge and an engine
coolant temperature warning light on
the instrument cluster to warn of
engine overheating. See Engine
Coolant Temperature Gauge 0132
and Engine Coolant Temperature
Warning Light 0140.
If it is decided not to lift the hood
when this warning appears, but
instead get service help right away,
see Roadside Assistance Program
0 356.
If it is decided to lift the hood, make
sure the vehicle is parked on a level
surface.
Then check to see if the engine
cooling fans are running. If the
engine is overheating, both fans
should be running. If they are not,
do not continue to run the engine,
and have the vehicle serviced.Caution
Do not run the engine if there is a
leak in the engine cooling system.
This can cause a loss of all
coolant and can damage the
system and vehicle. Have any
leaks fixed right away.
If Steam Is Coming from the
Engine Compartment
{Warning
Steam and scalding liquids from a
hot cooling system are under
pressure. Turning the pressure
cap, even a little, can cause them
to come out at high speed and
you could be burned. Never turn
the cap when the cooling system,
including the pressure cap, is hot.
Wait for the cooling system and
pressure cap to cool.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
278 Vehicle Care
Wheels and Tires
Tires
Every new GM vehicle has
high-quality tires made by a
leading tire manufacturer. See
the warranty manual for
information regarding the tire
warranty and where to get
service. For additional
information refer to the tire
manufacturer.
{Warning
.Poorly maintained and
improperly used tires are
dangerous.
.Overloading the tires can
cause overheating as a
result of too much
flexing. There could be a
blowout and a serious
crash. SeeVehicle Load
Limits 0186.
(Continued)
Warning (Continued)
.Underinflated tires pose
the same danger as
overloaded tires. The
resulting crash could
cause serious injury.
Check all tires frequently
to maintain the
recommended pressure.
Tire pressure should be
checked when the tires
are cold.
.Overinflated tires are
more likely to be cut,
punctured, or broken by
a sudden impact —such
as when hitting a pothole.
Keep tires at the
recommended pressure.
.Worn or old tires can
cause a crash. If the
tread is badly worn,
replace them.
(Continued)
Warning (Continued)
.Replace any tires that
have been damaged by
impacts with potholes,
curbs, etc.
.Improperly repaired tires
can cause a crash. Only
the dealer or an
authorized tire service
center should repair,
replace, dismount, and
mount the tires.
.Do not spin the tires in
excess of 56 km/h
(35 mph) on slippery
surfaces such as snow,
mud, ice, etc. Excessive
spinning may cause the
tires to explode.
See Tire Pressure for
High-Speed Operation 0286 for
inflation pressure adjustment for
high-speed driving.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Vehicle Care 285
(1/16 in) of tread remains. See
When It Is Time for New Tires
0292.
UTQGS (Uniform Tire Quality
Grading Standards)
:A tire
information system that provides
consumers with ratings for a
tire's traction, temperature, and
treadwear. Ratings are
determined by tire
manufacturers using
government testing procedures.
The ratings are molded into the
sidewall of the tire. See Uniform
Tire Quality Grading 0295.
Vehicle Capacity Weight
:The
number of designated seating
positions multiplied by
68 kg (150 lb) plus the rated
cargo load. See Vehicle Load
Limits 0186.
Vehicle Maximum Load on the
Tire
:Load on an individual tire
due to curb weight, accessory
weight, occupant weight, and
cargo weight. Vehicle Placard
:A label
permanently attached to a
vehicle showing the vehicle
capacity weight and the original
equipment tire size and
recommended inflation pressure.
See “Tire and Loading
Information Label” underVehicle
Load Limits 0186.
Tire Pressure
Tires need the correct amount of
air pressure to operate
effectively.
{Warning
Neither tire underinflation nor
overinflation is good.
Underinflated tires, or tires
that do not have enough air,
can result in:
.Tire overloading and
overheating which could
lead to a blowout.
(Continued)
Warning (Continued)
.Premature or
irregular wear.
.Poor handling.
.Reduced fuel economy.
Overinflated tires, or tires that
have too much air, can
result in:
.Unusual wear.
.Poor handling.
.Rough ride.
.Needless damage from
road hazards.
The Tire and Loading
Information label on the vehicle
indicates the original equipment
tires and the correct cold tire
inflation pressures. The
recommended pressure is the
minimum air pressure needed to

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Index 381
Driver InformationCenter (DIC) . . . . . . . . . . . . . . . . . . 144
Driving Assistance Systems . . . . . . . . . . 221
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 235
Defensive . . . . . . . . . . . . . . . . . . . . . 180
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 180
For Better Fuel Economy . . . . . . . 27
Hill and Mountain Roads . . . . . . 183
If the Vehicle is Stuck . . . . . . . . . 185
Loss of Control . . . . . . . . . . . . . . . 182
Off-Road Recovery . . . . . . . . . . . 182
Vehicle Load Limits . . . . . . . . . . . 186
Wet Roads . . . . . . . . . . . . . . . . . . . 183
Winter . . . . . . . . . . . . . . . . . . . . . . . . 184
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 171
E
Electric Parking Brake . . . . . . . . . . 202
Electric Parking Brake Light . . . . 138
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 243
Electrical System Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 273
Fuses and Circuit Breakers . . . 272 Electrical System (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 276
Overload . . . . . . . . . . . . . . . . . . . . . 271
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 367
Engine Air Cleaner/Filter . . . . . . . . . . . . . 255
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 135
Compartment Overview . . . . . . . 248
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 132
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . 140
Cooling System . . . . . . . . . . . . . . . 256
Drive Belt Routing . . . . . . . . . . . . 351
Exhaust . . . . . . . . . . . . . . . . . . . . . . 197
Heater . . . . . . . . . . . . . . . . . . . . . . . . 194
Oil Life System . . . . . . . . . . . . . . . 253
Oil Pressure Light . . . . . . . . . . . . 141
Overheating . . . . . . . . . . . . . . . . . . 260
Power Messages . . . . . . . . . . . . . 152
Running While Parked . . . . . . . . 198
Starting . . . . . . . . . . . . . . . . . . . . . . . 192
Engine Oil Temperature Gauge . . . . . . . . . . 131
Entry Lighting . . . . . . . . . . . . . . . . . . . 167 Equipment, Towing . . . . . . . . . . . . . 241
Event Data Recorders . . . . . . . . . . 364
Exit Lighting . . . . . . . . . . . . . . . . . . . . 167
Extended Parking . . . . . . . . . . . . . . . 197
Extender, Seat Belt . . . . . . . . . . . . . . 76
Exterior Lamp Controls . . . . . . . . . 162
Exterior Lamps Off Reminder . . . 163
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 168
F
FeaturesMemory . . . . . . . . . . . . . . . . . . . . . . . . . 13
Filter, Engine Air Cleaner . . . . . . . . . . . 255
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 163
Flashers, Hazard Warning . . . . . . 165
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 298 Changing . . . . . . . . . . . . . . . . . . . . . 313
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 333
Fluid Automatic Transmission . . . . . . 254
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 263
Washer . . . . . . . . . . . . . . . . . . . . . . . 261
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 166 Bulb Replacement . . . . . . . . . . . . 270
Folding Mirrors . . . . . . . . . . . . . . . . . . 52
Forward Automatic Braking . . . . . 223

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
382 Index
Forward Collision Alert(FCA) System . . . . . . . . . . . . . . . . . 221
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 362
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Front Pedestrian Braking
(FPB) System . . . . . . . . . . . . . . . . . 225
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 60
Heated and Ventilated . . . . . . . . . . 66
Front Storage . . . . . . . . . . . . . . . . . . . 112
Front Turn Signal Lamps . . . . . . . 270
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 233
Economy Driving . . . . . . . . . . . . . . . 27
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 234
Filling the Tank . . . . . . . . . . . . . . . 233
Foreign Countries . . . . . . . . . . . . 233
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 130
Low Fuel Warning Light . . . . . . . 142
Prohibited Fuels . . . . . . . . . . . . . . 232
Recommended . . . . . . . . . . . . . . . 232
Top Tier . . . . . . . . . . . . . . . . . . . . . . 231
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 273 Fuses (cont'd)
Fuses and Circuit Breakers . . . 272
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 276
G
Garage Door Opener . . . . . . . . . . . 158
Programming . . . . . . . . . . . . . . . . . 158
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 267
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 132
Engine Oil Temperature . . . . . . . 131
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Odometer . . . . . . . . . . . . . . . . . . . . . 130
Speedometer . . . . . . . . . . . . . . . . . 130
Tachometer . . . . . . . . . . . . . . . . . . . 130
Voltmeter . . . . . . . . . . . . . . . . . . . . . 132
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 123
General Information Service and Maintenance . . . . . 334
Towing . . . . . . . . . . . . . . . . . . . . . . . . 235
Vehicle Care . . . . . . . . . . . . . . . . . . 245
Glove Box . . . . . . . . . . . . . . . . . . . . . . 111
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 356
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 269
Hazard Warning Flashers . . . . . . . 165
Head Restraints . . . . . . . . . . . . . . . . . 58
Head-up Display . . . . . . . . . . . . . . . . 149
Headlamps . . . . . . . . . . . . . . . . . . . . . 269Adaptive ForwardLighting (AFL) . . . . . . . . . . . . . . . 164
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 268
Automatic . . . . . . . . . . . . . . . . . . . . . 163
Bulb Replacement . . . . . . . . . . . . 269
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 163
Flash-to-Pass . . . . . . . . . . . . . . . . . 163
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 269
High-Beam On Light . . . . . . . . . . 142
High/Low Beam Changer . . . . . 163
Lamps On Reminder . . . . . . . . . 143
Heated Steering Wheel . . . . . . . . . . . . . . . .117
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Heated Mirrors . . . . . . . . . . . . . . . . . . . 52
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 194
Heating . . . . . . . . . . . . . . . . . . . . . . . . . 171
High-Beam On Light . . . . . . . . . . . . 142

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