wheel size BUICK ENCORE 2020 Owner's Manual

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-13710474) -
2020 - CRC - 10/7/19
62 Seats and Restraints
If the vehicle has rollover roof-rail
airbags, seeDifferent Size Tires
and Wheels 0236 for additional
important information.
If the vehicle must be modified
because you have a disability and
have questions about whether the
modifications will affect the vehicle's
airbag system, or if you have
questions about whether the airbag
system will be affected if the vehicle
is modified for any other reason, call
Customer Assistance. See
Customer Assistance Offices 0281.
Airbag System Check
The airbag system does not need
regularly scheduled maintenance or
replacement. Make sure the airbag
readiness light is working. See
Airbag Readiness Light 099.
Caution
If an airbag covering is damaged,
opened, or broken, the airbag
may not work properly. Do not
(Continued)
Caution (Continued)
open or break the airbag
coverings. If there are any
opened or broken airbag
coverings, have the airbag
covering and/or airbag module
replaced. For the location of the
airbags, seeWhere Are the
Airbags? 052. See your dealer
for service.
Replacing Airbag System
Parts after a Crash
{Warning
A crash can damage the airbag
systems in the vehicle.
A damaged airbag system may
not properly protect you and your
passenger(s) in a crash, resulting
in serious injury or even death. To
help make sure the airbag
systems are working properly
after a crash, have them
(Continued)
Warning (Continued)
inspected and any necessary
replacements made as soon as
possible.
If an airbag inflates, you will need to
replace airbag system parts. See
your dealer for service.
If the airbag readiness light stays on
after the vehicle is started or comes
on when you are driving, the airbag
system may not work properly. Have
the vehicle serviced right away. See
Airbag Readiness Light 099.

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-13710474) -
2020 - CRC - 10/7/19
140 Driving and Operating
Safe driver behavior and
understanding of the environment
can help avoid a rollover crash in
any type of vehicle, including utility
vehicles.
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible:
.Set the climate controls to the
desired temperature after the
engine is started, or turn them
off when not required.
. Avoid fast starts and accelerate
smoothly.
. Brake gradually and avoid
abrupt stops.
. Avoid idling the engine for long
periods of time.
. When road and weather
conditions are appropriate, use
cruise control. .
Always follow posted speed
limits or drive more slowly when
conditions require.
. Keep vehicle tires properly
inflated.
. Combine several trips into a
single trip.
. Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
. Follow recommended scheduled
maintenance.
Distracted Driving
Distraction comes in many forms
and can take your focus from the
task of driving. Exercise good
judgment and do not let other
activities divert your attention away
from the road. Many local
governments have enacted laws
regarding driver distraction. Become
familiar with the local laws in
your area. To avoid distracted driving, keep
your eyes on the road, keep your
hands on the steering wheel, and
focus your attention on driving.
.
Do not use a phone in
demanding driving situations.
Use a hands-free method to
place or receive necessary
phone calls.
. Watch the road. Do not read,
take notes, or look up
information on phones or other
electronic devices.
. Designate a front seat
passenger to handle potential
distractions.
. Become familiar with vehicle
features before driving, such as
programming favorite radio
stations and adjusting climate
control and seat settings.
Program all trip information into
any navigation device prior to
driving.
. Wait until the vehicle is parked
to retrieve items that have fallen
to the floor.

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-13710474) -
2020 - CRC - 10/7/19
Driving and Operating 163
Drive Systems
All-Wheel Drive
If equipped, this feature transfers
engine power, as required, to all
four wheels. It is fully automatic, and
adjusts itself as needed for road
conditions.
When using a compact spare tire on
an All-Wheel Drive (AWD) vehicle,
the system automatically detects the
compact spare and disables AWD to
protect the system. A Driver
Information Center (DIC) message
will display on the instrument
cluster. SeeVehicle Messages
0 112. To restore AWD operation
and prevent excessive wear on the
system, replace the compact spare
with a full-size tire as soon as
possible. See Compact Spare Tire
0 244.
AWD will be disabled and the
message will display if there is
excessive wheel spin. When the
system cools down, AWD will be
restored.
Brakes
Antilock Brake
System (ABS)
The Antilock Brake System (ABS)
helps prevent a braking skid and
maintain steering while
braking hard.
ABS performs a system check when
the vehicle is first driven.
A momentary motor or clicking noise
may be heard while this test is going
on, and the brake pedal may move
slightly. This is normal.
If there is a problem with ABS, this
warning light stays on. See Antilock
Brake System (ABS) Warning Light
0 105. ABS does not change the time
needed to get a foot on the brake
pedal and does not always
decrease stopping distance. If you
get too close to the vehicle ahead,
there will not be enough time to
apply the brakes if that vehicle
suddenly slows or stops. Always
leave enough room ahead to stop,
even with ABS.
Using ABS
Do not pump the brakes. Just hold
the brake pedal down firmly.
Hearing or feeling ABS operate is
normal.
Braking in Emergencies
ABS allows steering and braking at
the same time. In many
emergencies, steering can help
even more than braking.

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-13710474) -
2020 - CRC - 10/7/19
186 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 187
California Proposition65 Warning . . . . . . . . . . . . . . . . . 187
California Perchlorate Materials Requirements . . . . . 188
Accessories and Modifications . . . . . . . . . . . . . . . . 188
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 188
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 189
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 191
Engine Oil . . . . . . . . . . . . . . . . . . . . 192
Engine Oil Life System . . . . . . . 194
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 195
Engine Air Cleaner/Filter . . . . . . 196
Cooling System . . . . . . . . . . . . . . 197
Engine Overheating . . . . . . . . . . 200
Washer Fluid . . . . . . . . . . . . . . . . . 201
Brakes . . . . . . . . . . . . . . . . . . . . . . . 202
Brake Fluid . . . . . . . . . . . . . . . . . . . 203
Battery - North America . . . . . . 204
All-Wheel Drive . . . . . . . . . . . . . . . 204 Starter Switch Check . . . . . . . . . 204
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 205
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . 205
Wiper Blade Replacement . . . . 206
Windshield Replacement . . . . . 207
Gas Strut(s) . . . . . . . . . . . . . . . . . . 207
Headlamp Aiming
Front Headlamp Aiming . . . . . . 208
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 209
Halogen Bulbs . . . . . . . . . . . . . . . . 209
LED Lighting . . . . . . . . . . . . . . . . . 209
Headlamps, Front Turn Signal and Parking Lamps . . . . . . . . . 209
Taillamps, Turn Signal, Sidemarker, Stoplamps, and
Back-Up Lamps . . . . . . . . . . . . . 210
License Plate Lamp . . . . . . . . . . 212
Electrical System
Electrical System Overload . . . 212
Fuses and Circuit Breakers . . . 213
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 213
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 217 Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 219
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 220
All-Season Tires . . . . . . . . . . . . . . 221
Winter Tires . . . . . . . . . . . . . . . . . . 221
Tire Sidewall Labeling . . . . . . . . 222
Tire Designations . . . . . . . . . . . . . 224
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 224
Tire Pressure . . . . . . . . . . . . . . . . . 227
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 228
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 229
Tire Inspection . . . . . . . . . . . . . . . . 232
Tire Rotation . . . . . . . . . . . . . . . . . 232
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . 233
Buying New Tires . . . . . . . . . . . . . 234
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 236
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 236
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 238
Wheel Replacement . . . . . . . . . . 238
Tire Chains . . . . . . . . . . . . . . . . . . . 239
If a Tire Goes Flat . . . . . . . . . . . . 239
Tire Changing . . . . . . . . . . . . . . . . 240

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-13710474) -
2020 - CRC - 10/7/19
Vehicle Care 221
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.
All-Season Tires
This vehicle may come with
all-season tires. These tires are
designed to provide good overall
performance on most road surfacesand weather conditions. Original
equipment tires designed to GM's
specific tire performance criteria
have a TPC specification code
molded onto the sidewall. Original
equipment all-season tires can be
identified by the last two characters
of this TPC code, which will
be
“MS.”
Consider installing winter tires on
the vehicle if frequent driving on
snow or ice-covered roads is
expected. All-season tires provide
adequate performance for most
winter driving conditions, but they
may not offer the same level of
traction or performance as winter
tires on snow or ice-covered roads.
See Winter Tires 0221.
Winter Tires
This vehicle was not originally
equipped with winter tires. Winter
tires are designed for increased
traction on snow and ice-covered
roads. Consider installing winter
tires on the vehicle if frequent
driving on ice or snow covered
roads is expected. See your dealer for details regarding winter tire
availability and proper tire selection.
Also, see
Buying New Tires 0234.
With winter tires, there may be
decreased dry road traction,
increased road noise, and shorter
tread life. After changing to winter
tires, be alert for changes in vehicle
handling and braking.
If using winter tires:
. Use tires of the same brand and
tread type on all four wheel
positions.
. Use only radial ply tires of the
same size, load range, and
speed rating as the original
equipment tires.
Winter tires with the same speed
rating as the original equipment tires
may not be available for H, V, W, Y,
and ZR speed rated tires. If winter
tires with a lower speed rating are
chosen, never exceed the tire's
maximum speed capability.

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-13710474) -
2020 - CRC - 10/7/19
224 Vehicle Care
(7) TPC Spec (Tire
Performance Criteria
Specification)
:Original
equipment tires designed to
GM's specific tire performance
criteria have a TPC specification
code molded onto the sidewall.
GM's TPC specifications meet or
exceed all federal safety
guidelines.
Tire Designations
Tire Size
The following is an example of a
typical passenger vehicle
tire size.
(1) Passenger (P-Metric) Tire:
The United States version of a
metric tire sizing system. The
letter P as the first character in the tire size means a passenger
vehicle tire engineered to
standards set by the U.S. Tire
and Rim Association.
(2) Tire Width
:The three-digit
number indicates the tire section
width in millimeters from
sidewall to sidewall.
(3) Aspect Ratio
:A two-digit
number that indicates the tire
height-to-width measurements.
For example, if the tire size
aspect ratio is 60, as shown in
item 3 of the illustration, it would
mean that the tire's sidewall is
60 percent as high as it is wide.
(4) Construction Code
:A letter
code is used to indicate the type
of ply construction in the tire.
The letter R means radial ply
construction; the letter D means
diagonal or bias ply
construction; and the letter B
means belted-bias ply
construction. (5) Rim Diameter
:Diameter of
the wheel in inches.
(6) Service Description
:These
characters represent the load
index and speed rating of the
tire. The load index represents
the load carrying capacity a tire
is certified to carry. The speed
rating is the maximum speed a
tire is certified to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight
:The
combined weight of optional
accessories. Some examples of
optional accessories are
automatic transmission, power
windows, power seats, and air
conditioning.

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-13710474) -
2020 - CRC - 10/7/19
232 Vehicle Care
TIRE LEARNING ACTIVE
message displays on the DIC
screen.
7. Start with the driver side front tire.
8. Place the relearn tool against the tire sidewall, near the valve
stem. Then press the button to
activate the TPMS sensor.
A horn chirp confirms that the
sensor identification code has
been matched to this tire and
wheel position.
9. Proceed to the passenger side front tire, and repeat the
procedure in Step 8.
10. Proceed to the passenger side rear tire, and repeat the
procedure in Step 8.
11. Proceed to the driver side rear tire, and repeat the procedure
in Step 8. The horn sounds two
times to indicate the sensor
identification code has been
matched to the driver side rear
tire, and the TPMS sensor
matching process is no longer
active. The TIRE LEARN or TIRE LEARNING ACTIVE
message on the DIC display
screen goes off.
12. Turn the vehicle off.
13. Set all four tires to the recommended air pressure
level as indicated on the Tire
and Loading Information label.
Tire Inspection
We recommend that the tires,
including the spare tire, if the
vehicle has one, be inspected
for signs of wear or damage at
least once a month.
Replace the tire if:
.The indicators at three or
more places around the tire
can be seen.
.There is cord or fabric
showing through the tire's
rubber.
.The tread or sidewall is
cracked, cut, or snagged
deep enough to show cord or
fabric.
.The tire has a bump, bulge,
or split.
.The tire has a puncture, cut,
or other damage that cannot
be repaired well because of
the size or location of the
damage.
Tire Rotation
Tires should be rotated every
12 000 km (7,500 mi). See
Maintenance Schedule 0263.
Tires are rotated to achieve a
more uniform wear for all tires.
The first rotation is the most
important.

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-13710474) -
2020 - CRC - 10/7/19
Vehicle Care 235
will be followed by MS for mud
and snow. SeeTire Sidewall
Labeling 0222.
GM recommends replacing worn
tires in complete sets of four.
Uniform tread depth on all tires
will help to maintain the
performance of the vehicle.
Braking and handling
performance may be adversely
affected if all the tires are not
replaced at the same time.
If proper rotation and
maintenance have been done,
all four tires should wear out at
about the same time. See Tire
Rotation 0232. However, if it is
necessary to replace only one
axle set of worn tires, place the
new tires on the rear axle.
Winter tires with the same speed
rating as the original equipment
tires may not be available for H,
V, W, Y and ZR speed rated
tires. Never exceed the winter tires’
maximum speed capability
when using winter tires with a
lower speed rating.
{Warning
Tires could explode during
improper service. Attempting
to mount or dismount a tire
could cause injury or death.
Only your dealer or authorized
tire service center should
mount or dismount the tires.
{Warning
Mixing tires of different sizes,
brands, or types may cause
loss of control of the vehicle,
resulting in a crash or other
vehicle damage. Use the
correct size, brand, and type
of tires on all wheels.
{Warning
Using bias-ply tires on the
vehicle may cause the wheel
rim flanges to develop cracks
after many miles of driving.
A tire and/or wheel could fail
suddenly and cause a crash.
Use only radial-ply tires with
the wheels on the vehicle.
If the vehicle tires must be
replaced with a tire that does not
have a TPC Spec number, make
sure they are the same size,
load range, speed rating, and
construction (radial) as the
original tires.
Vehicles that have a tire
pressure monitoring system
could give an inaccurate
low-pressure warning if non-TPC
Spec rated tires are installed.
See Tire Pressure Monitor
System 0228.

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-13710474) -
2020 - CRC - 10/7/19
236 Vehicle Care
The Tire and Loading
Information label indicates the
original equipment tires on the
vehicle. SeeVehicle Load Limits
0 147.
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 0234 and
Accessories and Modifications
0 188.
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 Encore Owner Manual (GMNA-Localizing-U.S./Canada-13710474) -
2020 - CRC - 10/7/19
Vehicle Care 239
Tire Chains
{Warning
Do not use tire chains. There is
not enough clearance. Tire chains
used on a vehicle without the
proper amount of clearance can
cause damage to the brakes,
suspension, or other vehicle
parts. The area damaged by the
tire chains could cause loss of
control and a crash.
Use another type of traction
device only if its manufacturer
recommends it for the vehicle's
tire size combination and road
conditions. Follow that
manufacturer's instructions. To
avoid vehicle damage, drive slow
and readjust or remove the
traction device if it contacts the
vehicle. Do not spin the wheels.
If traction devices are used, install
them on the front tires.
If a Tire Goes Flat
It is unusual for a tire to blow out
while driving, especially if the tires
are maintained properly. SeeTires
0 220. If air goes out of a tire, it is
much more likely to leak out slowly.
But if there ever is a blowout, here
are a few tips about what to expect
and what to do:
If a front tire fails, the flat tire
creates a drag that pulls the vehicle
toward that side. Take your foot off
the accelerator pedal and grip the
steering wheel firmly. Steer to
maintain lane position, and then
gently brake to a stop, well off the
road, if possible.
A rear blowout, particularly on a
curve, acts much like a skid and
may require the same correction as
used in a skid. Stop pressing the
accelerator pedal and steer to
straighten the vehicle. It may be
very bumpy and noisy. Gently brake
to a stop, well off the road,
if possible.{Warning
Driving on a flat tire will cause
permanent damage to the tire.
Re-inflating a tire after it has been
driven on while severely
underinflated or flat may cause a
blowout and a serious crash.
Never attempt to re-inflate a tire
that has been driven on while
severely underinflated or flat.
Have your dealer or an authorized
tire service center repair or
replace the flat tire as soon as
possible.
{Warning
Lifting a vehicle and getting under
it to do maintenance or repairs is
dangerous without the
appropriate safety equipment and
training. If a jack is provided with
the vehicle, it is designed only for
changing a flat tire. If it is used for
(Continued)