Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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212 Driving and Operating
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
Loaded trailers over 450 kg (1,000 lb) must
be equipped with brake systems and with
brakes for each axle. Trailer braking
equipment conforming to Canadian
Standards Association (CSA) requirement
CAN3-D313, or its equivalent, is
recommended.
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
anti-lock 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 should 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.Trailer tires deteriorate over time. The trailer
tire sidewall will show the week and year
the tire was manufactured. Many trailer tire
manufacturers recommend replacing tires
more than six years old.
Overloading is another leading cause of
trailer tire blow-outs. Never load your trailer
with more weight than the tires are
designed to support. The load rating is
located on the trailer tire sidewall.
Always know the maximum speed rating for
the trailer tires before driving. This may be
significantly lower than the vehicle tire
speed rating. The speed rating may be on
the trailer tire sidewall. If the speed rating is
not shown, the default trailer tire speed
rating is 105 km/h (65 mph).
Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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214 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 215
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 215
Accessories and Modifications . . . . . . . . . 215
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . 215
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Engine Compartment Overview . . . . . . . . 218
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Engine Oil Life System . . . . . . . . . . . . . . . . . 223
Engine Air Filter Life System . . . . . . . . . . 224
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . 224
Cooling System . . . . . . . . . . . . . . . . . . . . . . . 226
Engine Overheating . . . . . . . . . . . . . . . . . . . 229
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Brake Pad Life System . . . . . . . . . . . . . . . . . 231
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Battery - North America . . . . . . . . . . . . . . . 233
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 234
Automatic Transmission Shift Lock Control Function Check . . . . . . . . . . . . . . 235
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Wiper Blade Replacement . . . . . . . . . . . . . 235 Windshield Replacement . . . . . . . . . . . . . . 236
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 237
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 237
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 238
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Taillamps, Turn Signal, Sidemarker,
Stoplamps, and Back-Up Lamps (Base
Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Taillamps, Turn Signal, Sidemarker, Stoplamps, and Back-Up Lamps
(Uplevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Electrical System
Electrical System Overload . . . . . . . . . . . . . 241
Fuses and Circuit Breakers . . . . . . . . . . . . . 242
Engine Compartment Fuse Block . . . . . . 243
Instrument Panel Fuse Block . . . . . . . . . . . 245
Rear Compartment Fuse Block . . . . . . . . . 247
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . 249
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 249
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 251
Tire Terminology and Definitions . . . . . . 252
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 253 Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Tire Pressure Monitor System . . . . . . . . . 255
Tire Pressure Monitor Operation . . . . . . . 255
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 259
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 259
When It Is Time for New Tires . . . . . . . . 260
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 261
Different Size Tires and Wheels . . . . . . . 262
Uniform Tire Quality Grading . . . . . . . . . 262
Wheel Alignment and Tire Balance . . . . 263
Wheel Replacement . . . . . . . . . . . . . . . . . . . 263
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 264
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . 266
Compact Spare Tire . . . . . . . . . . . . . . . . . . . 270
Jump Starting
Jump Starting - North America . . . . . . . . 270
Towing the Vehicle
Transporting a Disabled Vehicle . . . . . . . 273
Recreational Vehicle Towing . . . . . . . . . . . 274
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
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Vehicle Care 231
Caution (Continued)
.When using concentrated washer fluid,
follow the manufacturer instructions
for adding water.
.Fill the washer fluid tank only
three-quarters full when it is very cold.
This allows for fluid expansion if
freezing occurs, which could damage
the tank if it is completely full.
Brakes
Disc brake linings have built-in wear
indicators that make a high-pitched warning
sound when the brake linings are worn and
new linings are needed. The sound can come
and go or can be heard all the time when
the vehicle is moving, except when applying
the brake pedal firmly.
{Warning
The brake wear warning sound means
that soon the brakes will not work well.
That could lead to a crash. When the
brake wear warning sound is heard, have
the vehicle serviced.
Caution
Continuing to drive with worn-out brake
linings could result in costly brake
repairs.
Some driving conditions or climates can
cause a brake squeal when the brakes are
first applied, clearing up following several
applications. This does not mean something
is wrong with the brakes.
Properly torqued wheel nuts are necessary
to help prevent brake pulsation. When tires
are rotated, inspect brake linings for wear
and evenly tighten wheel nuts in the proper
sequence to torque specifications. See
Capacities and Specifications 0295.
Brake pads should be replaced as complete
axle sets.
Brake Pedal Travel
See your dealer if the brake pedal does not
return to normal height, or if there is a
rapid increase in pedal travel. This could be
a sign that brake service may be required.
Replacing Brake System Parts
Always replace brake system parts with
new, approved replacement parts. If this is
not done, the brakes may not work
properly. The braking performance can
change in many ways if the wrong brake
parts are installed or if parts are improperly
installed.
Brake Pad Life System
When to Change Brake Pads
If equipped, this system estimates the
remaining life of the front and rear brake
pads. Brake pad life is displayed in the
Driver Information Center (DIC), along with
a percentage for each axle. The system must
be reset every time the brake pads are
changed.
When the system has determined that the
brake pads need to be replaced, a message
will display.
Brake pads should always be replaced as
complete axle sets.
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248 Vehicle Care
FuseUsage
F03 N/A
F04 N/A F05 DC/AC INVERTER
F06 N/A F07 RDCM
F08 RR SEAT HEAT PWR1
F09 N/A F10 RR SEAT HEAT PWR2 F11 N/A
F12 N/A
F13 N/A
F14 N/A F15 N/A
F16 N/A F17 N/A
F18 N/A
F19 N/A
F20 N/A F21 N/A Circuit
Breakers Usage
CB1 N/A
Relays Usage
K01 N/A
K02 N/A
K03 N/A
K04 N/A K05 N/A
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. See
Vehicle Load Limits 0159.
.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)
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Vehicle Care 249
Warning (Continued)
.Replace any tires that have been
damaged by impacts with
potholes, curbs, etc.
.Improperly repaired tires can cause
a crash. Only your 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 surfaces
and weather conditions. Original equipment
tires designed to GM's specific tire
performance criteria have a TPC specification
code molded onto the sidewall.
Consider installing winter tires on the
vehicle if frequent driving on snow or
ice-covered roads is expected. All-season tiresprovide 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 Tires0249.
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 0261.
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.
Tire Sidewall Labeling
Useful information about a tire is
molded into its sidewall. The examples
show a typical passenger vehicle tire
and a compact spare tire sidewall.
Passenger Tire Example
(1) Tire Size:The tire size is a
combination of letters and numbers
used to define a particular tire's width,
Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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250 Vehicle Care
height, aspect ratio, construction type,
and service description. See the“Tire
Size” illustration in this section.
(2) 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.
(3) DOT (Department of
Transportation)
:The Department of
Transportation (DOT) code indicates that
the tire is in compliance with the U.S.
Department of Transportation Motor
Vehicle Safety Standards.
DOT Tire Date of Manufacture
:The last
four digits of the TIN indicate the tire
manufactured date. The first two digits
represent the week and the last two
digits, the year. For example, the third
week of the year 2020 would have a
4-digit DOT date of 0320. Week 01 is
the first full week (Sunday through
Saturday) of each year. (4) Tire Identification Number (TIN)
:
The letters and numbers following the
DOT (Department of Transportation)
code are the Tire Identification Number
(TIN). The TIN shows the manufacturer
and plant code, tire size, and date the
tire was manufactured. The TIN is
molded onto both sides of the tire,
although only one side may have the
date of manufacture.
(5) Tire Ply Material
:The type of cord
and number of plies in the sidewall and
under the tread.
(6) Uniform Tire Quality Grading
(UTQG)
:Tire manufacturers are
required to grade tires based on three
performance factors: tread wear,
traction, and temperature resistance.
For more information see Uniform Tire
Quality Grading 0262.
(7) Maximum Cold Inflation Load
Limit
:Maximum load that can be
carried and the maximum pressure
needed to support that load.
Compact Spare Tire Example
(1) Tire Ply Material:The type of cord
and number of plies in the sidewall and
under the tread.
(2) Temporary Use Only
:The compact
spare tire or temporary use tire should
not be driven at speeds over 80 km/h
(50 mph). The compact spare tire is for
emergency use when a regular road tire
has lost air and gone flat. If the vehicle
has a compact spare tire, see Compact
Spare Tire 0270 and
If a Tire Goes Flat 0264.
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Vehicle Care 251
(3) Tire Identification Number (TIN):
The letters and numbers following the
DOT (Department of Transportation)
code are the Tire Identification Number
(TIN). The TIN shows the manufacturer
and plant code, tire size, and date the
tire was manufactured. The TIN is
molded onto both sides of the tire,
although only one side may have the
date of manufacture.
(4) Maximum Cold Inflation Load
Limit
:Maximum load that can be
carried and the maximum pressure
needed to support that load.
(5) Tire Inflation
:The temporary use
tire or compact spare tire should be
inflated to 420 kPa (60 psi). For more
information on tire pressure and
inflation see Tire Pressure 0253.
(6) Tire Size
:A combination of letters
and numbers define a tire's width,
height, aspect ratio, construction type,
and service description. The letter “T”as
the first character in the tire size means
the tire is for temporary use only. (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 example shows a typical passenger
vehicle tire size.
Passenger (P-Metric) Tire
(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 3-digit number
indicates the tire section width in
millimeters from sidewall to sidewall.
(3) Aspect Ratio
:A 2-digit number that
indicates the tire height-to-width
measurements. For example, if the tire
size aspect ratio is 75, as shown in
item (3) of the illustration, it would
mean that the tire's sidewall is
75 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.
(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.
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Vehicle Care 253
Passenger (P-Metric) Tire:A tire used
on passenger cars and some light duty
trucks and multipurpose vehicles.
Recommended Inflation Pressure
:
Vehicle manufacturer's recommended
tire inflation pressure as shown on the
tire placard. See Tire Pressure0253 and
Vehicle Load Limits 0159.
Radial Ply Tire
:A pneumatic tire in
which the ply cords that extend to the
beads are laid at 90 degrees to the
centerline of the tread.
Rim
:A metal support for a tire and
upon which the tire beads are seated.
Sidewall
:The portion of a tire between
the tread and the bead.
Speed Rating
:An alphanumeric code
assigned to a tire indicating the
maximum speed at which a tire can
operate.
Traction
:The friction between the tire
and the road surface. The amount of
grip provided.
Tread
:The portion of a tire that comes
into contact with the road. Treadwear Indicators
:Narrow bands,
sometimes called wear bars, that show
across the tread of a tire when only
1.6 mm (1/16 in) of tread remains. See
When It Is Time for New Tires 0260.
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 0262.
Vehicle Capacity Weight
:The number
of designated seating positions
multiplied by 68 kg (150 lbs) plus the
rated cargo load. See Vehicle Load
Limits 0159.
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's capacity weight and the
original equipment tire size and
recommended inflation pressure. See
“Tire and Loading Information Label”
under Vehicle Load Limits 0159.
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
.Premature or irregular wear
.Poor handling
.Reduced fuel economy for
internal combustion engine
vehicles
(Continued)