2021 BUICK ENVISION air filter replace

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
316 Service and Maintenance
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, if recommended for the vehicle, and perform
Required Services. (1) Check engine oil level and oil life per-
centage. Change engine oil and filter, if needed.
Check engine air filter life percentage and status. Change
engine air filter, if needed.
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (2)@ @@@@@
Replace spark plugs. Inspect spark plug wires and/or boots.@ @
Change rear axle fluid, if equipped with AWD. (3)@
Drain and fill engine cooling system. (4)@
Visually inspect accessory drive belts. (5)@
Replace brake fluid. (6)
Replace front and rear wiper blades. (7)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts. (8)@ @
Replace air conditioning desiccant. (9)

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
Service and Maintenance 317
Footnotes—Maintenance Schedule
Additional Required Services - Normal
(1) Vehicles with different size front and rear
tires do not have tire rotation. See Tire
Rotation 0289.
(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)
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.
(4) Or every five years, whichever comes
first. See Cooling System 0262.
(5) Or every 10 years, whichever comes first.
Inspect for fraying, excessive cracking,
or damage; replace, if needed. (6)
Replace brake fluid every five years. See
Brake Fluid 0267.
(7) Or every 12 months, whichever comes
first. See Wiper Blade Replacement 0269.
(8) Or every 10 years, whichever comes first.
See Gas Strut(s) 0271.
(9) Replace air conditioning desiccant every
seven years.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
318 Service and Maintenance
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, if recommended for the vehicle, and perform
Required Services. (1) Check engine oil level and oil life per-
centage. Change engine oil and filter, if needed.
Check engine air filter life percentage and status. Change
engine air filter, if needed.
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (2)@ @@@@@
Replace spark plugs. Inspect spark plug wires and/or boots.@ @
Change rear axle fluid, if equipped with AWD. (3)@ @
Change automatic transmission fluid.@@@
Drain and fill engine cooling system. (4)@
Visually inspect accessory drive belts. (5)@
Replace brake fluid. (6)
Replace front and rear wiper blades. (7)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts. (8)@ @
Replace air conditioning desiccant. (9)
Footnotes—Maintenance Schedule
Additional Required Services - Severe
(1) Vehicles with different size front and rear
tires do not have tire rotation. See Tire
Rotation 0289. (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)
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.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
Service and Maintenance 323
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your dealer.Part GM Part NumberACDelco Part Number
Engine Air Cleaner/Filter 84215222A3233C
Engine Oil Filter 55501357PF66
Passenger Compartment Air Filter 13531636CF206
Spark Plugs 5550435441-103-IP
Wiper Blades
IDriver Side –60 cm (23.6 in) 84580856
—
IPassenger Side –45 cm (17.7 in) 84580859
—
IRear –30 cm (11.8 in) 42709518
—

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
Index 357
Symbols (cont'd)Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
System Engine Air Filter Life . . . . . . . . . . . . . . . . . . . 261
Forward Collision Alert (FCA) . . . . . . . . . . . 231
Global Positioning . . . . . . . . . . . . . . . . . . . . . 147
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
Roof Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Systems Driver Assistance . . . . . . . . . . . . . . . . . . . . . . 222
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Teen Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Text Telephone (TTY) Users . . . . . . . . . . . . . . 330
Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . 24
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278All-Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 291
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Compact Spare . . . . . . . . . . . . . . . . . . . . . . . . 301
Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 292
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 295
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 284, 285 Tires (cont'd)
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . 101
Pressure Monitor Operation . . . . . . . . . . . 287
Pressure Monitor System . . . . . . . . . . . . . . 286
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . 280
Terminology and Definitions . . . . . . . . . . . 282
Uniform Tire Quality Grading . . . . . . . . . . 293
Wheel Alignment and Tire Balance . . . . 294
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 294
When It Is Time for New Tires . . . . . . . . . 290
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Towing Driving Characteristics . . . . . . . . . . . . . . . . . 243
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
General Information . . . . . . . . . . . . . . . . . . . 243
Recreational Vehicle . . . . . . . . . . . . . . . . . . . 304
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Trailer Sway Control (TSC) . . . . . . . . . . . . . 250
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Traction Control System (TCS)/StabiliTrakLight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Traction Control/Electronic Stability
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Trademarks and License Agreements . . . . . 169 Trailer
Sway Control (TSC) . . . . . . . . . . . . . . . . . . . . 250
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Fluid, Automatic . . . . . . . . . . . . . . . . . . . . . . . 260
Transportation Program, Courtesy . . . . . . . 333
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Turn and Lane-Change Signals . . . . . . . . . . . . 122
U
Uniform Tire Quality Grading . . . . . . . . . . . . 293
Universal Remote System . . . . . . . . . . . . . . . . . 113
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Updates Map Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134
Using the Navigation System . . . . . . . . . . . . .138
Using the System . . . . . . . . . . . . . . . . . . . . . . . . . 127
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . .2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Canadian Owners . . . . . . . . . . . . . . . . . . . . . . . . . 1
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187