run flat BUICK REGAL 2020 Owners Manual

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Instruments and Controls 119
outboard passenger frontal airbag
and knee airbag are allowed to
inflate.
If the word OFF, and the off symbol,
is lit on the airbag status indicator, it
means that the passenger sensing
system has turned off the front
outboard passenger frontal airbag
and knee airbag.
If, after several seconds, both status
indicator lights remain on, or if there
are no lights at all, there may be a
problem with the lights or the
passenger sensing system. See
your dealer for service.
{Warning
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. SeeAirbag Readiness
Light 0118 for more information,
including important safety
information.
Charging System Light
The charging system light comes on
briefly when the ignition is turned
on, but the engine is not running, as
a check to show the light is working.
The light turns off when the engine
is started. If it does not, have the
vehicle serviced by your dealer.
If the light stays on, or comes on
while driving, there could be a
problem with the electrical charging
system. Have it checked by your
dealer. Driving while this light is on
could drain the battery.
If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio
and air conditioner.
Malfunction Indicator
Lamp (Check Engine
Light)
This light is part of the vehicle’s
emission control on-board
diagnostic system. If this light is on
while the engine is running, a
malfunction has been detected and
the vehicle may require service. The
light should come on to show that it
is working when the ignition is in
Service Mode. See Ignition
Positions 0176.
Malfunctions are often indicated by
the system before any problem is
noticeable. Being aware of the light
and seeking service promptly when
it comes on may prevent damage.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Driving and Operating 169
Warning (Continued)
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to drive
through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water
can build up under the vehicle's
tires so they actually ride on the
water. This can happen if the road is
wet enough and you are going fast
enough. When the vehicle is
hydroplaning, it has little or no
contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
. Pass with caution. .
Keep windshield wiping
equipment in good shape.
. Keep the windshield washer fluid
reservoir filled.
. Have good tires with proper
tread depth. See Tires0265.
. Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips include:
.Keep the vehicle serviced and in
good shape.
. Check all fluid levels and brakes,
tires, cooling system, and
transmission.
. Shift to a lower gear when going
down steep or long hills.
{Warning
Using the brakes to slow the
vehicle on a long downhill slope
can cause brake overheating, can
(Continued)
Warning (Continued)
reduce brake performance, and
could result in a loss of braking.
Shift the transmission to a lower
gear to let the engine assist the
brakes on a steep downhill slope.
{Warning
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. This can cause
overheating of the brakes and
loss of steering assist. Always
have the engine running and the
vehicle in gear.
. Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the
center line.
. Be alert on top of hills;
something could be in your lane
(e.g., stalled car, crash).

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Vehicle Care 287
Warning (Continued)
5. Place wheel blocks,if equipped, on both sides of
the tire at the opposite
corner of the tire being
changed.
This vehicle may come with a jack
and spare tire or a tire sealant and
compressor kit. To use the jacking
equipment to change a spare tire
safely, follow the instructions below.
Then see Tire Changing 0301. To
use the tire sealant and compressor
kit, see Tire Sealant and
Compressor Kit 0287 or
Tire Sealant and Compressor Kit
0 293.
When the vehicle has a flat tire (2),
use the following example as a
guide to assist you in the placement
of wheel blocks (1), if equipped.
1. Wheel Block (If Equipped)
2. Flat Tire
The following information explains
how to repair or change a tire.
Tire Sealant and
Compressor Kit
Your vehicle may have one of the
two inflator kits described following.
{Warning
Idling a vehicle in an enclosed
area with poor ventilation is
dangerous. Engine exhaust may
enter the vehicle. Engine exhaust
contains carbon monoxide (CO) (Continued)
Warning (Continued)
which cannot be seen or smelled.
It can cause unconsciousness
and even death. Never run the
engine in an enclosed area that
has no fresh air ventilation. For
more information, seeEngine
Exhaust 0183.
{Warning
Overinflating a tire could cause
the tire to rupture and you or
others could be injured. Be sure
to read and follow the tire sealant
and compressor kit instructions
and inflate the tire to its
recommended pressure. Do not
exceed the recommended
pressure.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
290 Vehicle Care
Do not pinch the power plug
cord in the door or window.
8. Start the vehicle. The vehicle must be running while using
the air compressor.
9. Press the on/off button (7) to turn the tire sealant and
compressor kit on.
The compressor will inject
sealant and air into the tire.
The pressure gauge (3) will
initially show a high pressure
while the compressor pushes
the sealant into the tire. Once
the sealant is completely
dispersed into the tire, the
pressure will quickly drop and
start to rise again as the tire
inflates with air only.
10. Inflate the tire to the recommended inflation
pressure using the pressure
gauge (3). The recommended
inflation pressure can be found
on the Tire and Loading
Information label. See Tire
Pressure 0272. The pressure gauge (3) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate pressure
reading. The compressor may
be turned on/off until the
correct pressure is reached.
Caution
If the recommended pressure
cannot be reached after
approximately 10 minutes, the
vehicle should not be driven
farther. The tire is too severely
damaged and the tire sealant and
compressor kit cannot inflate the
tire. Remove the power plug from
the accessory power outlet and
unscrew the inflating hose from
the tire valve. See
Roadside
Assistance Program 0344.
11. Press the on/off button (7) to turn the tire sealant and
compressor kit off. The tire is not sealed and will
continue to leak air until the
vehicle is driven and the
sealant is distributed in the tire.
Therefore, Steps 12–14 must
be done immediately after
Step 11.
Be careful while handling the
tire sealant and compressor kit
as it could be warm after
usage.
12. Unplug the power plug (5) from the accessory power outlet in
the vehicle.
13. Turn the sealant/air hose (6) counterclockwise to remove it
from the tire valve stem.
14. Replace the tire valve stem cap.
15. Immediately drive the vehicle 8 km (5 mi) but not longer than
10 minutes to distribute the
sealant in the tire.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
292 Vehicle Care
4. Compressor
5. Power Plug
6. Sealant/Air Hose
7. On/Off Button
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place. Turn on the hazard
warning flashers. SeeHazard
Warning Flashers 0150.
See If a Tire Goes Flat 0285 for
other important safety warnings.
1. Remove the compressor from its storage location. See
Storing the Tire Sealant and
Compressor Kit (With
Subwoofer) 0300 or
Storing the Tire Sealant and
Compressor Kit (Without
Subwoofer) 0300.
2. Remove the sealant/air hose (6) and the power plug (5) from
the bottom of the compressor.
3. Place the compressor on the ground near the flat tire. Make sure the tire valve stem
is positioned close to the
ground so the hose will
reach it.
4. Remove the valve stem cap from the flat tire by turning it
counterclockwise.
5. Attach the sealant/air hose (6) to the tire valve stem by turning
it clockwise until tight.
6. Plug the power plug (5) into the accessory power outlet in the
vehicle. Unplug all items from
other accessory power outlets.
See Power Outlets 0103.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a
cigarette lighter, use the
cigarette lighter.
Do not pinch the power plug
cord in the door or window.
7. Start the vehicle. The vehicle must be running while using
the air compressor. 8. Press the on/off button (7) to
turn the tire sealant and
compressor kit on.
The compressor will inflate the
tire with air only.
9. Inflate the tire to the recommended inflation
pressure using the pressure
gauge (3). The recommended
inflation pressure can be found
on the Tire and Loading
Information label. See Tire
Pressure 0272.
The pressure gauge (3) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate pressure
reading. The compressor may
be turned on/off until the
correct pressure is reached.
Caution
If the recommended pressure
cannot be reached after
approximately 10 minutes, the (Continued)

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Vehicle Care 293
Caution (Continued)
vehicle should not be driven
farther. The tire is too severely
damaged and the tire sealant and
compressor kit cannot inflate the
tire. Remove the power plug from
the accessory power outlet and
unscrew the inflating hose from
the tire valve. SeeRoadside
Assistance Program 0344.
10. Press the on/off button (7) to turn the tire sealant and
compressor kit off.
Be careful while handling the
compressor as it could be
warm after usage.
11. Unplug the power plug (5) from the accessory power outlet in
the vehicle.
12. Turn the sealant/air hose (6) counterclockwise to remove it
from the tire valve stem.
13. Replace the tire valve stem cap. 14. Return the sealant/air hose (6)
and power plug (5) back to
their original storage location.
15. Return the equipment to its original storage location in the
vehicle.
The tire sealant and compressor kit
has accessory adapters located in a
compartment on the bottom of its
housing that can be used to inflate
air mattresses, balls, etc.
Tire Sealant and
Compressor Kit
{Warning
Idling a vehicle in an enclosed
area with poor ventilation is
dangerous. Engine exhaust may
enter the vehicle. Engine exhaust
contains carbon monoxide (CO)
which cannot be seen or smelled.
It can cause unconsciousness
and even death. Never run the
engine in an enclosed area that (Continued)
Warning (Continued)
has no fresh air ventilation. For
more information, seeEngine
Exhaust 0183.
{Warning
Overinflating a tire could cause
the tire to rupture and you or
others could be injured. Be sure
to read and follow the tire sealant
and compressor kit instructions
and inflate the tire to its
recommended pressure. Do not
exceed the recommended
pressure.
{Warning
Storing the tire sealant and
compressor kit or other
equipment in the passenger
compartment of the vehicle could
(Continued)

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
296 Vehicle Care
7. Attach the sealant/air hose (2)to the tire valve stem by turning
it clockwise until tight.
8. Plug the power plug (10) into the accessory power outlet in
the vehicle. Unplug all items
from other accessory power
outlets. See Power Outlets
0 103.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a
cigarette lighter, use the
cigarette lighter. Do not pinch the power plug
cord in the door or window.
9. Start the vehicle. The vehicle must be running while using
the air compressor.
10. Press the on/off button (8) to turn the tire sealant and
compressor kit on.
The compressor will inject
sealant and air into the tire.
The pressure gauge (5) will
initially show a high pressure
while the compressor pushes
the sealant into the tire. Once
the sealant is completely
dispersed into the tire, the
pressure will quickly drop and
start to rise again as the tire
inflates with air only.
11. Inflate the tire to the recommended inflation
pressure using the pressure
gauge (5). The recommended
inflation pressure can be found
on the Tire and Loading
Information label. See Tire
Pressure 0272. The pressure gauge (5) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate pressure
reading. The compressor may
be turned on/off until the
correct pressure is reached.
Caution
If the recommended pressure
cannot be reached after
approximately 25 minutes, the
vehicle should not be driven
farther. The tire is too severely
damaged and the tire sealant and
compressor kit cannot inflate the
tire. Remove the power plug from
the accessory power outlet and
unscrew the inflating hose from
the tire valve. See
Roadside
Assistance Program 0344.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Vehicle Care 299
2. Remove the air only hose (11)and the power plug (10) from
the bottom of the compressor.
3. Place the compressor on the ground near the flat tire.
Make sure the tire valve stem
is positioned close to the
ground so the hose will
reach it.
4. Remove the valve stem cap from the flat tire by turning it
counterclockwise.
5. Attach the air only hose (11) to the tire valve stem by turning it
clockwise until tight.
6. Plug the power plug (10) into the accessory power outlet in
the vehicle. Unplug all items
from other accessory power
outlets. See Power Outlets
0 103.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a
cigarette lighter, use the
cigarette lighter. Do not pinch the power plug
cord in the door or window.
7. Start the vehicle. The vehicle must be running while using
the air compressor.
8. Press the on/off button (8) to turn the tire sealant and
compressor kit on.
The compressor will inflate the
tire with air only.
9. Inflate the tire to the recommended inflation
pressure using the pressure
gauge (5). The recommended
inflation pressure can be found
on the Tire and Loading
Information label. See Tire
Pressure 0272.
The pressure gauge (5) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate pressure
reading. The compressor may
be turned on/off until the
correct pressure is reached.Caution
If the recommended pressure
cannot be reached after
approximately 25 minutes, the
vehicle should not be driven
farther. The tire is too severely
damaged and the tire sealant and
compressor kit cannot inflate the
tire. Remove the power plug from
the accessory power outlet and
unscrew the inflating hose from
the tire valve. See Roadside
Assistance Program 0344.
10. Press the on/off button (8) to turn the tire sealant and
compressor kit off.
Be careful while handling the
compressor as it could be
warm after usage.
11. Unplug the power plug (10) from the accessory power
outlet in the vehicle.
12. Turn the air only hose (11) counterclockwise to remove it
from the tire valve stem.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
306 Vehicle Care
Stop as soon as possible and check
that the spare tire is correctly
inflated after being installed on the
vehicle. The compact spare tire is
designed for temporary use only.
The vehicle will perform differently
with the spare tire installed and it is
recommended that the vehicle
speed be limited to 80 km/h
(50 mph). To conserve the tread of
the spare tire, have the standard tire
repaired or replaced as soon as
convenient and return the spare tire
to the storage area.
When using a compact spare tire,
the AWD (if equipped), ABS, and
Traction Control systems may
engage until the spare tire is
recognized by the vehicle,
especially on slippery roads. Adjust
driving to reduce possible
wheel slip.Caution
When the compact spare is
installed, do not take the vehicle
through an automatic car wash
with guide rails. The compact
spare can get caught on the rails
which can damage the tire, wheel,
and other parts of the vehicle.
Do not use the compact spare on
other vehicles.
Do not mix the compact spare tire or
wheel with other wheels or tires.
They will not fit. Keep the spare tire
and its wheel together.
Caution
Tire chains will not fit the compact
spare. Using them can damage
the vehicle and the chains. Do not
use tire chains on the compact
spare.
Jump Starting
Jump Starting - North
America
For more information about the
vehicle battery, see Battery - North
America 0251.
If the battery has run down, try to
use another vehicle and some
jumper cables to start your vehicle.
Be sure to use the following steps to
do it safely.
{Warning
WARNING: Battery posts,
terminals, and related
accessories contain lead and lead
compounds, chemicals known to
the State of California to cause
cancer and birth defects or other
reproductive harm. Batteries also
contain other chemicals known to
the State of California to cause
cancer. WASH HANDS AFTER
(Continued)

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
368 Index
Driver InformationCenter (DIC) . . . . . . . . . . . . . . . . . . 128
Driving Assistance Systems . . . . . . . . . . 207
Better Fuel Economy . . . . . . . . . 164
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 221
Defensive . . . . . . . . . . . . . . . . . . . . . 165
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 165
Hill and Mountain Roads . . . . . . 169
If the Vehicle is Stuck . . . . . . . . . 171
Loss of Control . . . . . . . . . . . . . . . 168
Off-Road Recovery . . . . . . . . . . . 167
Vehicle Load Limits . . . . . . . . . . . 171
Wet Roads . . . . . . . . . . . . . . . . . . . 168
Winter . . . . . . . . . . . . . . . . . . . . . . . . 170
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 156
E
Electric Parking Brake . . . . . . . . . . 188
Electric Parking Brake Light . . . . 122
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 229
Electrical System Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 259
Fuses and Circuit Breakers . . . 259 Electrical System (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 263
Overload . . . . . . . . . . . . . . . . . . . . . 258
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 355
Engine Air Cleaner/Filter . . . . . . . . . . . . . 242
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . .119
Compartment Overview . . . . . . . 235
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . .115
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . 125
Cooling System . . . . . . . . . . . . . . . 243
Drive Belt Routing . . . . . . . . . . . . 339
Exhaust . . . . . . . . . . . . . . . . . . . . . . 183
Heater . . . . . . . . . . . . . . . . . . . . . . . . 179
Oil Life System . . . . . . . . . . . . . . . 240
Oil Pressure Light . . . . . . . . . . . . 126
Overheating . . . . . . . . . . . . . . . . . . 247
Power Messages . . . . . . . . . . . . . 137
Running While Parked . . . . . . . . 184
Starting . . . . . . . . . . . . . . . . . . . . . . . 177
Engine Oil Temperature Gauge . . . . . . . . . . .115
Entry Lighting . . . . . . . . . . . . . . . . . . . 152 Equipment, Towing . . . . . . . . . . . . . 227
Event Data Recorders . . . . . . . . . . 352
Exit Lighting . . . . . . . . . . . . . . . . . . . . 152
Extended Parking . . . . . . . . . . . . . . . 183
Extender, Seat Belt . . . . . . . . . . . . . . 58
Exterior Lamp Controls . . . . . . . . . 147
Exterior Lamps Off Reminder . . . 148
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 154
F
Filter,Engine Air Cleaner . . . . . . . . . . . 242
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 148
Flashers, Hazard Warning . . . . . . 150
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 285 Changing . . . . . . . . . . . . . . . . . . . . . 301
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 320
Fluid Automatic Transmission . . . . . . 241
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 250
Washer . . . . . . . . . . . . . . . . . . . . . . . 248
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 150 Bulb Replacement . . . . . . . . . . . . 257
Folding Mirrors . . . . . . . . . . . . . . . . . . 32
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 207