The a BUICK ENCORE GX 2021 Owner's Manual

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608036) - 2021 - CRC - 9/21/20
Vehicle Care 279
2. Pull the taillamp assembly straight backto detach it from the vehicle body. Take
care that the cable duct remains in place.
3. Remove the bulb socket from the taillamp assembly.4. Remove the old bulb from the bulbsocket by pulling it straight out.
5. Insert a new bulb into the bulb socket.
6. Install the bulb socket into the taillamp assembly.
7. Install the taillamp assembly to the vehicle body with the two screws.
Rear Back-Up Lamp
The bulbs are accessible from the underside
of the vehicle.
1. Turn the bulb holder anti-clockwise and remove it from reflector.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608036) - 2021 - CRC - 9/21/20
280 Vehicle Care
2. Disengage the bulb socket from the plugconnector by pressing the retaining lug.
3. Remove and replace the bulb socket with bulb and attach the plug connector.
4. Insert the bulb socket into the reflector and turn clockwise to engage.
Taillamps, Turn Signal,
Sidemarker, Stoplamps, and
Back-Up Lamps (Uplevel)
Caution
Improper lamp assembly removal and
installation can cause leaks and water
intrusion which may cause damage to
(Continued)
Caution (Continued)
the taillamp. Do not remove the taillamp
assembly to replace a bulb. Use the
tailgate opening to access the bulb.
The stoplamp/taillamp/turn signal lamp/side
marker lamp and tailgate inboard taillamp
are LEDs. To replace, see your dealer.
Electrical System
Electrical System Overload
The vehicle has fuses and circuit breakers to
protect against an electrical system
overload.
When the current electrical load is too
heavy, the circuit breaker opens and closes,
protecting the circuit until the current load
returns to normal or the problem is fixed.
This greatly reduces the chance of circuit
overload and fire caused by electrical
problems.
Fuses and circuit breakers protect power
devices in the vehicle.
Replace a bad fuse with a new one of the
identical size and rating. If there is a problem on the road and a fuse
needs to be replaced, the same amperage
fuse can be borrowed. Choose some feature
of the vehicle that is not needed to use and
replace it as soon as possible.
Headlamp Wiring
An electrical overload may cause the lamps
to go on and off, or in some cases to
remain off. Have the headlamp wiring
checked right away if the lamps go on and
off or remain off.
Windshield Wipers
If the wiper motor overheats due to heavy
snow or ice, the windshield wipers will stop
until the motor cools and will then restart.
Although the circuit is protected from
electrical overload, overload due to heavy
snow or ice may cause wiper linkage
damage. Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an electrical
problem and not snow or ice, be sure to get
it fixed.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608036) - 2021 - CRC - 9/21/20
Vehicle Care 281
Fuses and Circuit Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit breakers.
This greatly reduces the chance of damage
caused by electrical problems.
{Danger
Fuses and circuit breakers are marked
with their ampere rating. Do not exceed
the specified amperage rating when
replacing fuses and circuit breakers. Use
of an oversized fuse or circuit breaker can
result in a vehicle fire. You and others
could be seriously injured or killed.
{Warning
Installation or use of fuses that do not
meet GM’s original fuse specifications is
dangerous. The fuses could fail, and result(Continued)
Warning (Continued)
in a fire. You or others could be injured
or killed, and the vehicle could be
damaged.
See Accessories and Modifications 0252 and
General Information 0252.
To check a fuse, look at the silver-colored
band inside the fuse. If the band is broken
or melted, replace the fuse. Be sure to
replace a bad fuse with a new one of the
identical size and rating.
Fuses of the same amperage can be
temporarily borrowed from another fuse
location, if a fuse goes out. Replace the fuse
as soon as possible.
Engine Compartment Fuse Block
To remove the fuse block cover, squeeze the
clip and lift it up.
Caution
Spilling liquid on any electrical
component on the vehicle may damage
it. Always keep the covers on any
electrical component.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608036) - 2021 - CRC - 9/21/20
282 Vehicle Care
The vehicle may not be equipped with all of
the fuses, relays, and features shown.Micro Fuses Usage
F02 CLSTR Micro Fuses Usage
F03 N/A
F06 OSRVM DEFOG F07 L/GATE RELSE
F08 AHL AFL MTR1
F09 VENT SEAT F10 N/A F11 AHL AFL MTR2
F12 N/A
F14 ISRVM REAR VIEW CAMERA F15 DEFC MDL RUN/CRNK
F16 HDLP LVL F17 N/A-DSL
F18 FTZM
F19 N/A
F20 N/A F22 TRLR ST/TRN LT - TRLR
F24 ESCL F25 ECM TCM RUN/CRNK
F26 FRT/REAR WSW PUMP Micro Fuses Usage
F27 IGN COIL-GAS
ECM PT3-DSL
F28 AERO SH
F29 AHL AFL MDL F31 ECM PT2
F32 ENG COMP2
F33 RVC
F34 FRT FOG LP F35 ENG COMP1
F36 ECM PT1
F38 TRLR PRK LAMP - TRLR
F40 AUX WATER PUMP F41 REAR WPR
F42 HORN
F44 REAR WPR PRK F45 A/C CLTCH
F46 N/A
F47 ECM BATT-GAS
ECM BATT-DSL
F49 HDLP HI LH

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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284 Vehicle Care
Instrument Panel Fuse Block
The instrument panel fuse block is on the
underside of the driver side instrument
panel. To access the fuses, open the fuse
cover by pulling out. To reinstall the cover,
insert the top tab first, then push the cover
back into its original location.
FuseUsage
F01 LUMBAR
F02 SUNROOF Fuse
Usage
F03 VBAT_3
F04 VBAT_7 F05 VBAT_6
F06 AUTO HVAC F07 CGM
F08 ST_WHL_HTR
F09 DISPLAY F10 RADIO F11 ONSTAR
F12 PARK_ASSIST
F13 MAN. HVAC
F14 WL CHARGER F15 VBAT_2
F16 VBAT_1 F17 SWC BKLT
F18 N/A
F19 N/A
F20 CLOCK SPRING F21 OCC SEN

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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FuseUsage
F22 DLC
F23 SDM
F24 IGN_SW/ESCL F25 PWR L-GATE MDL
F26 SEC FUSE-2 F27 PWR SEAT CO-DR
F28 VBAT_8
F29 DC-DC AT
DC-DC MT
F30 PWR L-GATE MDL F31 OSRVM
F32 FRT HS PWR-1
F33 VBAT_4
F34 FRT HS PWR-2 F35 AMPLIFIER
F36 SEC FUSE-1 F37 PWR SEAT DR
F38 DC-DC_400W
DC-DC_200W
F39 N/A Fuse
Usage
F40 HVAC_BLOWER
Circuit
Breaker Usage
CB1 N/A
CB2 APO
Relay Usage
K01 i-RAP_ACC
K02 RUN
K03 LOGISTICS
K04 N/A K05 N/A
K06 N/ARear Compartment Fuse Block
The rear compartment fuse block is behind a
cover on the driver side of the rear
compartment. To access the fuses, remove
the cover.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608036) - 2021 - CRC - 9/21/20
286 Vehicle Care
FuseUsage
F01 N/A
F02 RDCM ELEC Fuse
Usage
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.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 287
{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 Limits0193.
.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.
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. 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 Tires0287.
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 0299.
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.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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288 Vehicle Care
.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 (P-Metric) Tire Example
(1) Tire Size:The tire size is a
combination of letters and numbers
used to define a particular tire's width,
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 0300.

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(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 0308 and
If a Tire Goes Flat 0303.
(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 0292.
(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