air conditioning BUICK ENVISION 2020 User Guide

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 2/25/19
316 Service and Maintenance Footnotes — Maintenance
Schedule Additional Required
Services - Severe
(1) 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.
(2) Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition.
(3) 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 0 241 .
(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
0 243 .
(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 0 250 .
(8) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0 252 .
(9) Or every 10 years, whichever
comes first. See Gas Strut(s) 0 254 .
(10) Replace air conditioning
desiccant every seven years. 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
0 300 .

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 2/25/19
324 Technical Data
Vehicle Data Capacities and Specifications The following approximate capacities are given in metric and English conversions. See Recommended Fluids and
Lubricants 0 320 for more information.
Application Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and
charge amount, see the refrigerant label under the
hood. See your dealer for more information.
Engine Cooling System*
2.0L L4 Engine 7.7 L 8.1 qt
2.5L L4 Engine 7.0 L 7.4 qt
Engine Oil with Filter
FWD 4.7 L 5.0 qt
AWD 5.7 L 6.0 qt
Fuel Tank 65.5 L 17.3 gal
Wheel Nut Torque 190 Y 140 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.
*Engine cooling system capacity values are based on the entire cooling system and its components.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 2/25/19
Index 351
Index A About Driving the Vehicle . . . . . . . . . 2
Accessories and
Modifications . . . . . . . . . . . . . . . . . . 231
Accessory Power . . . . . . . . . . . . . . . 179
Adaptive Cruise Control . . . . . . . . 192
Add-On Electrical Equipment . . . 228
Additional Information
OnStar . . . . . . . . . . . . . . . . . . . . . . . 342
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 317
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . 36
Thigh Support . . . . . . . . . . . . . . . . . . 37
Air Cleaner/Filter, Engine . . . . . . . 241
Air Conditioning . . . . . . . . . . . 153, 156
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 158
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 158
Airbag System
Check . . . . . . . . . . . . . . . . . . . . . . . . . . 66
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 58
Passenger Sensing System . . . . 60
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 58
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 59 Airbag System (cont'd)
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 57
Where Are the Airbags? . . . . . . . . 55
Airbags
Adding Equipment to the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 65
Passenger Status Indicator . . . .114
Readiness Light . . . . . . . . . . . . . . .113
Servicing Airbag-Equipped
Vehicles . . . . . . . . . . . . . . . . . . . . . . . 65
System Check . . . . . . . . . . . . . . . . . . 54
Alarm
Vehicle Security . . . . . . . . . . . . . . . . 25
Alert
Lane Change . . . . . . . . . . . . . . . . . .211
Side Blind Zone (SBZA) . . . . . . .211
All-Season Tires . . . . . . . . . . . . . . . . 266
All-Wheel Drive . . . . . . . . . . . . 185, 252
Antilock Brake System (ABS) . . . 185
Warning Light . . . . . . . . . . . . . . . . . .118
Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . . . 300
Interior . . . . . . . . . . . . . . . . . . . . . . . . 304
Armrest
Rear Seat . . . . . . . . . . . . . . . . . . . . . . 44
Assistance Program,
Roadside . . . . . . . . . . . . . . . . . . . . . . 330