2021 BUICK ENCORE GX maintenance schedule

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608036) - 2021 - CRC - 9/21/20
Service and Maintenance 325
Maintenance Schedule Additional
Required Services - Normal12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi 60 000 km/37,500 mi
72 000 km/45,000 mi84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi 120 000 km/75,000 mi 132 000 km/82,500 mi
144 000 km/90,000 mi 156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi 204 000 km/127,500 mi 216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services. Check engine oil
level and oil life percentage. Change engine oil and filter,
if needed.
Check engine air filter life percentage and status. Change
engine air filter, if needed. (1)
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (2)@ @@@@@
Inspect evaporative control system. (3)@ @@
Replace spark plugs. Inspect spark plug wires and/or boots.@ @
Change rear axle fluid, if equipped with AWD. (4)@
Drain and fill engine cooling system. (5)@
Visually inspect accessory drive belts. (6)@
Replace brake fluid. (7)
Replace front and rear wiper blades. (8)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts. (9)@ @
Replace air conditioning desiccant. (10)
Replace oil pump drive belt and timing belt. (LIH 1.2L L3
Engine Only). (11)
@

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608036) - 2021 - CRC - 9/21/20
326 Service and Maintenance
Footnotes—Maintenance Schedule
Additional Required Services - Normal
(1) Or every four years, whichever comes
first. If driving in dusty conditions, inspect
the filter at each oil change or more often
as needed. See Engine Air Cleaner/Filter
0 261.
(2) Or every two years, whichever comes
first. More frequent passenger compartment
air filter replacement may be needed if
driving in areas with heavy traffic, poor air
quality, high dust levels, or environmental
allergens. Passenger compartment air filter
replacement may also be needed if there is
reduced airflow, window fogging, or odors.
Your GM dealer can help determine when to
replace the filter. (3)
Visually check all fuel and vapor lines
and hoses for proper attachment,
connection, routing, and condition.
(4) Do not directly power wash the transfer
case and/or front/rear axle output seals.
High pressure water can overcome the seals
and contaminate the transfer case fluid.
Contaminated fluid will decrease the life of
the transfer case and/or axles and should be
replaced.
(5) Or every five years, whichever comes
first. See Cooling System 0262.
(6) Or every 10 years, whichever comes first.
Inspect for fraying, excessive cracking,
or damage; replace, if needed. (7)
Replace brake fluid every five years. See
Brake Fluid 0269.
(8) Or every 12 months, whichever comes
first. See Wiper Blade Replacement 0272.
(9) Or every 10 years, whichever comes first.
See Gas Strut(s) 0274.
(10) Replace air conditioning desiccant every
seven years.
(11) The oil pump drive belt and the timing
belt on the LIH engine must be replaced at
150,000 miles (240,000 km) or 15 years,
whichever comes first.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608036) - 2021 - CRC - 9/21/20
Service and Maintenance 327
Maintenance Schedule Additional
Required Services - Severe12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi 60 000 km/37,500 mi
72 000 km/45,000 mi84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi 120 000 km/75,000 mi 132 000 km/82,500 mi
144 000 km/90,000 mi 156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi 204 000 km/127,500 mi 216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services. Check engine oil
level and oil life percentage. Change engine oil and filter,
if needed.
Check engine air filter life percentage and status. Change
engine air filter, if needed. (1)
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (2)@ @@@@@
Inspect evaporative control system. (3)@ @@
Change automatic transmission fluid. (9 Speed
Transmission Only)@@@
Change automatic transmission fluid and filter. (Continuously
Variable Ratio Transmission (CVT) Only)@@@
Replace spark plugs. Inspect spark plug wires and/or boots.@ @
Change rear axle fluid, if equipped with AWD. (4)@ @
Drain and fill engine cooling system. (5)@
Visually inspect accessory drive belts. (6)@
Replace brake fluid. (7)
Replace front and rear wiper blades. (8)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts. (9)@@
Replace air conditioning desiccant. (10)
Replace oil pump drive belt and timing belt. (LIH 1.2L L3
Engine Only). (11)
@

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608036) - 2021 - CRC - 9/21/20
328 Service and Maintenance
Footnotes—Maintenance Schedule
Additional Required Services - Severe
(1) Or every four years, whichever comes
first. If driving in dusty conditions, inspect
the filter at each oil change or more often
as needed. See Engine Air Cleaner/Filter
0 261.
(2) Or every two years, whichever comes
first. More frequent passenger compartment
air filter replacement may be needed if
driving in areas with heavy traffic, poor air
quality, high dust levels, or environmental
allergens. Passenger compartment air filter
replacement may also be needed if there is
reduced airflow, window fogging, or odors.
Your GM dealer can help determine when to
replace the filter.
(3) Visually check all fuel and vapor lines
and hoses for proper attachment,
connection, routing, and condition.
(4) Do not directly power wash the transfer
case and/or front/rear axle output seals.
High pressure water can overcome the seals
and contaminate the transfer case fluid.
Contaminated fluid will decrease the life of
the transfer case and/or axles and should be
replaced. (5)
Or every five years, whichever comes
first. See Cooling System 0262.
(6) Or every 10 years, whichever comes first.
Inspect for fraying, excessive cracking,
or damage; replace, if needed.
(7) Replace brake fluid every five years. See
Brake Fluid 0269.
(8) Or every 12 months, whichever comes
first. See Wiper Blade Replacement 0272.
(9) Or every 10 years, whichever comes first.
See Gas Strut(s) 0274.
(10) Replace air conditioning desiccant every
seven years.
(11) The oil pump drive belt and the timing
belt on the LIH engine must be replaced at
150,000 miles (240,000 km) or 15 years,
whichever comes first.
Special Application Services
.Severe Commercial Use Vehicles Only:
Lubricate chassis components every oil
change.
.Have underbody flushing service
performed. See "Underbody Maintenance"
in Exterior Care 0314.
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.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608036) - 2021 - CRC - 9/21/20
334 Service and Maintenance
Maintenance Records
After the scheduled services are performed, record the date, odometer reading, who performed the service, and the type of services performed
in the boxes provided. Retain all maintenance receipts.Date Odometer Reading Serviced By Services Performed

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608036) - 2021 - CRC - 9/21/20
Customer Information 341
Mediation/Arbitration Program
c/o Customer Care Centre
General Motors of Canada Company
Mail Code: CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
The inquiry should be accompanied by the
Vehicle Identification Number (VIN).
Customer Assistance Offices
Buick encourages customers to call the
toll-free number for assistance. However, if a
customer wishes to write or e-mail Buick,
the letter should be addressed to:
United States and Puerto Rico
Buick Customer Assistance Center
P.O. Box 33136
Detroit, MI 48232-5136
www.Buick.com
1-800-521-7300
1-800-832-8425 (For Text Telephone devices
(TTYs))
Roadside Assistance: 1-800-252-1112
From U.S. Virgin Islands:
1-800-496-9994
Canada
General Motors of Canada Company
Customer Care Centre, Mail Code:
CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
www.gm.ca
1-800-263-3777 (English)
1-800-263-7854 (French)
1-800-263-3830 (For Text Telephone devices
(TTYs))
Roadside Assistance: 1-800-268-6800
All Overseas Locations
Please contact the local General Motors
Business Unit.
Customer Assistance for Text
Telephone (TTY) Users
To assist customers who are deaf, hard of
hearing, or speech-impaired and who use
Text Telephones (TTYs), Buick has TTY
equipment available at its Customer
Assistance Center. Any TTY user can
communicate with Buick by dialing:
1-800-832-8425. TTY users in Canada can dial
1-800-263-3830.
Online Owner Center
The Buick Owner Center (U.S.)
my.buick.com
Learn more about your vehicle features,
shop for and manage your connected
services and OnStar plans, and access
diagnostic information specific to your
vehicle.
Membership Benefits
E:Download owner’s manuals and view
vehicle-specific how-to videos.
G: View maintenance schedules, alerts, and
Vehicle Diagnostic Information. Schedule
service appointments.
I: View service records from your
dealership and add your own.
D: Select a dealer and view locations,
maps, phone numbers, and hours.
r: Track your vehicle’s warranty
information.
J: View active recalls by Vehicle
Identification Number (VIN). See Vehicle
Identification Number (VIN) 0335.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608036) - 2021 - CRC - 9/21/20
346 Customer Information
Gather the following information:
.Driver name, address, and telephone
number
.Driver license number
.Owner name, address, and telephone
number
.Vehicle license plate number
.Vehicle make, model, and model year
.Vehicle Identification Number (VIN)
.Insurance company and policy number
.General description of the damage to the
other vehicle
Choose a reputable repair facility that uses
quality replacement parts. See “Collision
Parts” earlier in this section.
If the airbag has inflated, see What Will You
See after an Airbag Inflates? 054.
Managing the Vehicle Damage Repair
Process
In the event that the vehicle requires
damage repairs, GM recommends that you
take an active role in its repair. If you have
a pre-determined repair facility of choice,
take the vehicle there, or have it towed
there. Specify to the facility that any
required replacement collision parts be
original equipment parts, either new Genuine GM parts or recycled original GM
parts. Remember, recycled parts will not be
covered by the GM vehicle warranty.
Insurance pays the bill for the repair, but
you must live with the repair. Depending on
your policy limits, your insurance company
may initially value the repair using
aftermarket parts. Discuss this with the
repair professional, and insist on Genuine
GM parts. Remember, if the vehicle is
leased, you may be obligated to have the
vehicle repaired with Genuine GM parts,
even if your insurance coverage does not
pay the full cost.
If another party's insurance company is
paying for the repairs, you are not obligated
to accept a repair valuation based on that
insurance company's collision policy repair
limits, as you have no contractual limits
with that company. In such cases, you can
have control of the repair and parts choices
as long as the cost stays within reasonable
limits.
Publication Ordering Information
Service Manuals
Service manuals have the diagnosis and
repair information on the engine,
transmission, axle, suspension, brakes,
electrical system, steering system, body, etc.
Customer Literature
Owner’s manuals are written specifically for
owners and are intended to provide basic
operational information about the vehicle.
The owner’s manual includes the
Maintenance Schedule for all models.
Customer literature publications available for
purchase include owner’s manuals, warranty
manuals, and portfolios. Portfolios include an
owner’s manual, warranty manual,
if applicable, and zip lock bag or pouch.
Current and Past Models
Service manuals and customer literature are
available for many current and past model
year GM vehicles.
To order, call 1-800-551-4123 Monday–Friday,
8:00 a.m.–6:00 p.m. eastern time

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608036) - 2021 - CRC - 9/21/20
364 Index
Lumbar Adjustment (cont'd)Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
M
Maintenance
Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Maintenance Schedule . . . . . . . . . . . . . . . . . . . 323 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Malfunction Indicator Lamp . . . . . . . . . . . . . . . 97
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Map Data Updates . . . . . . . . . . . . . . . . . . . . . . . . 153
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Media Avoiding Untrusted Devices . . . . . . . . . . . . . 137
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Messages Engine Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Mirror Rear Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Mirrors Automatic Dimming Rearview . . . . . . . . . . 27
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Mirrors (cont'd)
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Manual Rearview . . . . . . . . . . . . . . . . . . . . . . . 27
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Mirrors, Interior Rearview . . . . . . . . . . . . . . . . . .27
Monitor System, Tire Pressure . . . . . . . . . . . 293
Multi-band Antenna . . . . . . . . . . . . . . . . . . . . . 136
N
Navigation Connected Services . . . . . . . . . . . . . . . . . . . . 355
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Using the System . . . . . . . . . . . . . . . . . . . . . . . 141
Navigation Symbols . . . . . . . . . . . . . . . . . . . . . .145
Net, Convenience . . . . . . . . . . . . . . . . . . . . . . . . . 80
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . 196
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Off-Road
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Engine Oil Life System . . . . . . . . . . . . . . . . . 260
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . 102
Older Children, Restraints . . . . . . . . . . . . . . . . . 60
Online Owner Center . . . . . . . . . . . . . . . . . . . . .341 OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
OnStar Additional Information . . . . . . . . . . . . 351
OnStar Emergency . . . . . . . . . . . . . . . . . . . . . . . . 351
OnStar Overview . . . . . . . . . . . . . . . . . . . . . . . . . 350
OnStar Security . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
OnStar System . . . . . . . . . . . . . . . . . . . . . . 140, 151
Operation
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Overheating, Engine . . . . . . . . . . . . . . . . . . . . . 266
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . 4
P
ParkShifting Into . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Shifting Out of . . . . . . . . . . . . . . . . . . . . . . . . 204
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Parking Brake and P (Park) Mechanism
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Over Things That Burn . . . . . . . . . . . . . . . . . 204
Parking or Backing Assistance Systems . . . . . . . . . . . . . . . . . . . . 224
Passenger Airbag Status Indicator . . . . . . . . . 96
Passenger Compartment Air Filter . . . . . . . .185