2019 BUICK REGAL SPORTBACK brake light

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Vehicle Care 293
Treadwear indicators are one way to
tell when it is time for new tires.
Treadwear indicators appear when
the tires have only 1.6 mm (1/16 in)
or less of tread remaining.
SeeTire Inspection 0291 andTire
Rotation 0291.
The rubber in tires ages over time.
This also applies to the spare tire,
if the vehicle has one, even if it is
never used. Multiple factors
including temperatures, loading
conditions, and inflation pressure
maintenance affect how fast aging
takes place. GM recommends that
tires, including the spare if
equipped, be replaced after six years, regardless of tread wear. The
tire manufacture date is the last four
digits of the DOT Tire Identification
Number (TIN) which is molded into
one side of the tire sidewall. The
first two digits represent the week
(01–52) and the last two digits, the
year. For example, the third week of
the year 2010 would have a
four-digit DOT date of 0310.
Vehicle Storage
Tires age when stored normally
mounted on a parked vehicle. Park
a vehicle that will be stored for at
least a month in a cool, dry, clean
area away from direct sunlight to
slow aging. This area should be free
of grease, gasoline, or other
substances that can deteriorate
rubber.
Parking for an extended period can
cause flat spots on the tires that
may result in vibrations while
driving. When storing a vehicle for
at least a month, remove the tires or
raise the vehicle to reduce the
weight from the tires.
Buying New Tires
GM has developed and matched
specific tires for the vehicle. The
original equipment tires installed
were designed to meet General
Motors Tire Performance Criteria
Specification (TPC Spec)
system rating. When
replacement tires are needed,
GM strongly recommends
buying tires with the same TPC
Spec rating.
GM's exclusive TPC Spec
system considers over a dozen
critical specifications that impact
the overall performance of the
vehicle, including brake system
performance, ride and handling,
traction control, and tire
pressure monitoring
performance. GM's TPC Spec
number is molded onto the tire's
sidewall near the tire size. If the
tires have an all-season tread
design, the TPC Spec number

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Vehicle Care 295
The Tire and Loading
Information label indicates the
original equipment tires on the
vehicle. SeeVehicle Load Limits
0 186.
Different Size Tires and
Wheels
If wheels or tires are installed that
are a different size than the original
equipment wheels and tires, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction
control, electronic stability control,
or All-Wheel Drive, the performance
of these systems can also be
affected.
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
(Continued)
Warning (Continued)
tires not recommended for those
wheels are selected. This
increases the chance of a crash
and serious injury. Only use GM
specific wheel and tire systems
developed for the vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires 0293 and
Accessories and Modifications
0 246.
Uniform Tire Quality
Grading
The following information relates
to the system developed by the
United States National Highway
Traffic Safety Administration
(NHTSA), which grades tires by
treadwear, traction, and
temperature performance. This
applies only to vehicles sold in
the United States. The grades
are molded on the sidewalls of most passenger car tires. The
Uniform Tire Quality Grading
(UTQG) system does not apply
to deep tread, winter tires,
compact spare tires, tires with
nominal rim diameters of
10 to 12 inches (25 to 30 cm),
or to some limited-production
tires.
While the tires available on
General Motors passenger cars
and light trucks may vary with
respect to these grades, they
must also conform to federal
safety requirements and
additional General Motors Tire
Performance Criteria (TPC)
standards.
Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example:

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Vehicle Care 297
Wheel Alignment and Tire
Balance
The tires and wheels were aligned
and balanced at the factory to
provide the longest tire life and best
overall performance. Adjustments to
wheel alignment and tire balancing
are not necessary on a regular
basis. Consider an alignment check
if there is unusual tire wear or the
vehicle is significantly pulling to one
side or the other. Some slight pull to
the left or right, depending on the
crown of the road and/or other road
surface variations such as troughs
or ruts, is normal. If the vehicle is
vibrating when driving on a smooth
road, the tires and wheels may need
to be rebalanced. See your dealer
for proper diagnosis.
Wheel Replacement
Replace any wheel that is bent,
cracked, or badly rusted or
corroded. If wheel nuts keep coming
loose, the wheel, wheel bolts, and
wheel nuts should be replaced.
If the wheel leaks air, replace it.Some aluminum wheels can be
repaired. See your dealer if any of
these conditions exist.
Your dealer will know the kind of
wheel that is needed.
Each new wheel should have the
same load-carrying capacity,
diameter, width, offset, and be
mounted the same way as the one it
replaces.
Replace wheels, wheel bolts, wheel
nuts, or Tire Pressure Monitor
System (TPMS) sensors with new
GM original equipment parts.
{Warning
Using the wrong replacement
wheels, wheel bolts, or wheel
nuts can be dangerous. It could
affect the braking and handling of
the vehicle. Tires can lose air,
and cause loss of control, causing
a crash. Always use the correct
wheel, wheel bolts, and wheel
nuts for replacement.
Caution
The wrong wheel can also cause
problems with bearing life, brake
cooling, speedometer or
odometer calibration, headlamp
aim, bumper height, vehicle
ground clearance, and tire or tire
chain clearance to the body and
chassis.
Used Replacement Wheels
{Warning
Replacing a wheel with a used
one is dangerous. How it has
been used or how far it has been
driven may be unknown. It could
fail suddenly and cause a crash.
When replacing wheels, use a
new GM original equipment
wheel.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
342 Service and Maintenance
Additional
Maintenance and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional
maintenance services may be
required.
It is recommended that your dealer
perform these services—their
trained dealer technicians know
your vehicle best. Your dealer can
also perform a thorough
assessment with a multi-point
inspection to recommend when your
vehicle may need attention.
The following list is intended to
explain the services and conditions
to look for that may indicate
services are required. Battery
The 12-volt battery supplies power
to start the engine and operate any
additional electrical accessories.
.
To avoid break-down or failure to
start the vehicle, maintain a
battery with full cranking power.
. Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion-free.
Belts
. Belts may need replacing if they
squeak or show signs of
cracking or splitting.
. Trained dealer technicians have
access to tools and equipment
to inspect the belts and
recommend adjustment or
replacement when necessary. Brakes
Brakes stop the vehicle and are
crucial to safe driving.
.
Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
. Trained dealer technicians have
access to tools and equipment
to inspect the brakes and
recommend quality parts
engineered for the vehicle.
Fluids
Proper fluid levels and approved
fluids protect the vehicle’s
systems and components. See
Recommended Fluids and
Lubricants 0345 for GM approved
fluids.
. Engine oil and windshield
washer fluid levels should be
checked at every fuel fill.
. Instrument cluster lights may
come on to indicate that fluids
may be low and need to be
filled.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Service and Maintenance 343
Hoses
Hoses transport fluids and should
be regularly inspected to ensure
that there are no cracks or leaks.
With a multi-point inspection, your
dealer can inspect the hoses and
advise if replacement is needed.
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
. With a multi-point inspection,
your dealer can check the lamps
and note any concerns. Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
.
Signs of wear may include
steering wheel vibration, bounce/
sway while braking, longer
stopping distance, or uneven
tire wear.
. As part of the multi-point
inspection, trained dealer
technicians can visually inspect
the shocks and struts for signs
of leaking, blown seals,
or damage, and can advise
when service is needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel,
and can reduce the risk of tire
failure.
. Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord
or fabric showing through the rubber; cracks or cuts in the
tread or sidewall; or a bulge or
split in the tire.
. Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also
provide tire/wheel balancing
services to ensure smooth
vehicle operation at all speeds.
Your dealer sells and services
name brand tires.
Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and
protect the vehicle’s interior and
exterior, see Interior Care 0330 and
Exterior Care 0325.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
378 Index
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 246
Accessory Power . . . . . . . . . . . . . . . 195
Adaptive Cruise Control . . . . . . . . 210
Adaptive Forward Lighting (AFL) . . . . . . . . . . . . . . . . . 164
Adaptive Forward Lighting (AFL) Light . . . . . . . . . . . . . . . . . . . . 142
Add-On Electrical Equipment . . . 243
Additional Information
OnStar . . . . . . . . . . . . . . . . . . . . . . . 368
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 342
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 61
Thigh Support . . . . . . . . . . . . . . . . . . 62
Air Cleaner/Filter, Engine . . . . . . . 255
Air Conditioning . . . . . . . . . . . . . . . . 171
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 176
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 176
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 89
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 82
Passenger Sensing System . . . . 84 Airbag System (cont'd)
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 82
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 82
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 81
Where Are the Airbags? . . . . . . . . 79
Airbags
Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 88
Passenger Status Indicator . . . 134
Readiness Light . . . . . . . . . . . . . . 134
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 88
System Check . . . . . . . . . . . . . . . . . . 78
Alarm Vehicle Security . . . . . . . . . . . . . . . . 49
Alert Lane Change . . . . . . . . . . . . . . . . . 227
Side Blind Zone (SBZA) . . . . . . 227
All-Season Tires . . . . . . . . . . . . . . . . 279
All-Wheel Drive . . . . . . . . . . . . 201, 265
Antilock Brake System (ABS) . . . 202 Warning Light . . . . . . . . . . . . . . . . . 138
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 325
Interior . . . . . . . . . . . . . . . . . . . . . . . . 330

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Index 379
Armrest Storage . . . . . . . . . . . . . . . . 112
Assistance Program,Roadside . . . . . . . . . . . . . . . . . . . . . . 356
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 221
Assistance Systems for Parking and Backing . . . . . . . . . . 219
Auto Stop Stop/Start System . . . . . . . . . . . . 193
Automatic Door Locks . . . . . . . . . . . . . . . . . . . . . 39
Forward Braking . . . . . . . . . . . . . . 223
Headlamp System . . . . . . . . . . . . 163
Transmission . . . . . . . . . . . . . . . . . 198
Transmission Fluid . . . . . . . . . . . 254
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . 200
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 265
B
BatteryExterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 168
Load Management . . . . . . . . . . . . 168
Power Protection . . . . . . . . . . . . . 168
Battery - North America . . . . 264, 319 Blade Replacement, Wiper . . . . . 266
Brake
Parking, Electric . . . . . . . . . . . . . . 202
System Warning Light . . . . . . . . 137
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 262 Antilock . . . . . . . . . . . . . . . . . . . . . . . 202
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 204
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 180 Automatic Forward . . . . . . . . . . . 223
Braking System
Front Pedestrian (FPB) . . . . . . . 225
Break-In, New Vehicle . . . . . . . . . . 190
Bulb Replacement Fog Lamps . . . . . . . . . . . . . . . . . . . 270
Front Turn Signal Lamps . . . . . 270
Halogen Bulbs . . . . . . . . . . . . . . . . 269
Headlamp Aiming . . . . . . . . . . . . . 268
Headlamps . . . . . . . . . . . . . . . . . . . 269
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 269
Taillamps, Turn Signal, Stoplamps, and Back-up
Lamps . . . . . . . . . . . . . . . . . . . . . . 270
Buying New Tires . . . . . . . . . . . . . . . 293
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 119
California
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 246
California Proposition
65 Warning . . . . . . . . . .245, 264, 319, Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 349
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 197
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 41
Winter Driving . . . . . . . . . . . . . . . . 184
Cargo Cover . . . . . . . . . . . . . . . . . . . . . . . . . .113
Tie-Downs . . . . . . . . . . . . . . . . . . . . .114
Caution, Danger, and Warning . . . . 3
Chains, Tire . . . . . . . . . . . . . . . . . . . . 298
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . 120
Charging System Light . . . . . . . . . 135
Check
Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 135

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