engine BUICK ENVISION 2020 Repair Manual

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 2/25/19
222 Driving and Operating Making Turns
CautionTurn more slowly and make wider
arcs when towing a trailer to
prevent damage to your vehicle.
Making very sharp turns could
cause the trailer to contact the
vehicle.
Make wider turns than normal when
towing, so trailer will not go over soft
shoulders, over curbs, or strike road
signs, trees, or other objects.
Always signal turns well in advance.
Do not steer or brake suddenly.
Driving on Grades Reduce speed and shift to a lower
gear before starting down a long or
steep downhill grade. If the
transmission is not shifted down, the
brakes may overheat and result in
reduced braking efficiency. The vehicle can tow in D (Drive).
Shift the transmission to a lower
gear if the transmission shifts too
often under heavy loads and/or hilly
conditions.
When towing at higher altitudes,
engine coolant will boil at a lower
temperature than at lower altitudes.
If the engine is turned off
immediately after towing at high
altitude on steep uphill grades, the
vehicle could show signs similar to
engine overheating. To avoid this,
let the engine run, preferably on
level ground, with the transmission
in P (Park) for a few minutes before
turning the engine off. If the
overheat warning comes on, see
Engine Overheating 0 247 .
Parking on Hills
{ Warning
To prevent serious injury or death,
always park your vehicle and
trailer on a level surface when
possible. When parking your vehicle and your
trailer on a hill:
1. Press the brake pedal, but do
not shift into P (Park) yet. Turn
the wheels into the curb if
facing downhill or into traffic if
facing uphill.
2. Have someone place chocks
under the trailer wheels.
3. When the wheel chocks are in
place, gradually release the
brake pedal to allow the chocks
to absorb the load of the trailer.
4. Reapply the brake pedal. Then
apply the parking brake and
shift into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill 1. Apply and hold the brake
pedal.
.
Start the engine.
.
Shift into a gear.
.
Release the parking brake.
2. Let up on the brake pedal.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 2/25/19
Driving and Operating 2233. Drive slowly until the trailer is
clear of the chocks.
4. Stop and have someone pick
up and store the chocks.
Maintenance When Trailer
Towing The vehicle needs service more
often when used to tow trailers. See
Maintenance Schedule 0 311 . It is
especially important to check the
automatic transmission fluid, engine
oil, axle lubricant, belts, cooling
system, and brake system before
and during each trip.
Check periodically that all nuts and
bolts on the trailer hitch are tight.
Engine Cooling When Trailer
Towing The cooling system may temporarily
overheat during severe operating
conditions. See Engine Overheating
0 247 . Trailer Towing CautionTowing a trailer improperly can
damage the vehicle and result in
costly repairs not covered by the
vehicle warranty. To tow a trailer
correctly, follow the directions in
this section and see your dealer
for important information about
towing a trailer with the vehicle.
Trailer Weight
{ WarningNever exceed the towing capacity
for your vehicle.
Safe trailering requires monitoring
the weight, speed, altitude, road
grades, outside temperature,
dimensions of the front of the trailer,
and how frequently the vehicle is
used to tow a trailer.
Before towing a trailer, always
separately weigh: .
Fully loaded vehicle and trailer
combination.
.
The trailer.
.
The trailer tongue.
{ WarningYou and others could be seriously
injured or killed if the trailer is too
heavy or the trailer brakes are
inadequate for the load. The
vehicle may be damaged, and the
repairs would not be covered by
the vehicle warranty.
Only tow a trailer if all the steps in
this section have been followed.
Ask your dealer for advice and
information about towing a trailer.
Gross Combined Weight
Rating (GCWR)
GCWR is the total allowable weight
of the completely loaded vehicle
and trailer including any fuel,
passengers, cargo, equipment, and
accessories. Do not exceed the

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 2/25/19
Driving and Operating 225Vehicle Max. Trailer Wt. *GCWR
AWD – 2.0L L4 Engine 680 kg (1,500 lb) 2 750 kg (6,060 lb)
2WD – 2.5L L4 Engine 680 kg (1,500 lb) 2 600 kg (5,730 lb)
AWD – 2.5L L4 Engine 680 kg (1,500 lb) 2 700 kg (5,950 lb)
*The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and
trailer including any passengers, cargo, equipment, and conversion. The GCWR for the vehicle should not be
exceeded.
Maximum Trailer Tongue
Weight Rating The Maximum Trailer Tongue
Weight Rating is the allowable
trailer tongue weight that the vehicle
can support.
Do not exceed a maximum trailer
tongue weight of 91 kg (200 lbs).
The trailer tongue weight contributes
to the Gross Vehicle Weight (GVW).
GVW includes the curb weight of
your vehicle, any passengers,
cargo, equipment, and the trailer
tongue weight. Vehicle options,
passengers, cargo, and equipment
reduce the maximum allowable tongue weight the vehicle can carry,
which also reduces the maximum
allowable trailer weight.
Trailer Load Balance The correct trailer load balance
must be maintained to ensure trailer
stability. Incorrect load balance is a
leading cause of trailer sway.
The trailer tongue weight (1) should
be 10 – 15% of the loaded trailer
weight (2). Some specific trailer
types, such as boat trailers, fall
outside of this range. Always refer
to the trailer owner ’ s manual for the

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 2/25/19
226 Driving and Operating recommended trailer tongue weight
for each trailer. Never exceed the
maximum loads for your vehicle,
hitch, and trailer.
After loading the trailer, separately
weigh the trailer and then the trailer
tongue to see if the weights are
appropriate for your vehicle. If the
trailer weight is too high, it may be
possible to transfer some of the
cargo into your vehicle. If the trailer
tongue weight is too high or too low,
it may be possible to rearrange
some of the cargo inside the trailer.
Do not exceed the maximum
allowable tongue weight for your
vehicle. Use the shortest hitch
extension available to position the
hitch ball closer to your vehicle. This
will help reduce the effect of the
trailer tongue weight on the trailer
hitch and the rear axle.
If a cargo carrier is used in the
trailer hitch receiver, choose a
carrier that positions the load as
close to the vehicle as possible.
Make sure the total weight,
including the carrier, is no more than half of the maximum allowable
tongue weight for the vehicle or
227 kg (500 lb), whichever is less.
Ask your dealer for trailering
information or assistance.
Towing Equipment Hitches Always use the correct hitch
equipment for your vehicle.
Crosswinds, large trucks going by,
and rough roads can affect the
trailer and the hitch.
Never attach rental hitches or other
bumper-type hitches. Only use
frame-mounted hitches that do not
attach to the bumper.
Always seal any holes in your
vehicle if the trailer hitch is
removed. If not sealed, dirt, water,
and carbon monoxide (CO) from the
exhaust may enter your vehicle.
See Engine Exhaust 0 181 .
Consider using mechanical sway
controls with any trailer. Ask a
trailering professional about sway controls or refer to the trailer
manufacturer's recommendations
and instructions.
Tires .
Do not tow a trailer while using a
compact spare tire on the
vehicle.
.
Tires must be properly inflated to
support loads while towing a
trailer. See Tires 0 265 for
instructions on proper tire
inflation.
Safety Chains Always attach chains between the
vehicle and the trailer, and attach
the chains to the holes on the trailer
hitch platform. Instructions about
safety chains may be provided by
the hitch manufacturer or by the
trailer manufacturer.
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

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 2/25/19
228 Driving and Operating 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).
Conversions and
Add-Ons Add-On Electrical
Equipment
{ WarningThe Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. See Malfunction Indicator
Lamp (Check Engine Light) 0 115 .
A device connected to the DLC —
such as an aftermarket fleet or
driver-behavior tracking device —
may interfere with vehicle
systems. This could affect vehicle
operation and cause a crash.
Such devices may also access
information stored in the vehicle ’ s
systems. CautionSome electrical equipment can
damage the vehicle or cause
components to not work and
would not be covered by the
vehicle warranty. Always check
with your dealer before adding
electrical equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle 0 65 and
Adding Equipment to the
Airbag-Equipped Vehicle 0 65 .

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 3/12/19
Vehicle Care 229
Vehicle Care General Information General Information . . . . . . . . . . 230
California Proposition
65 Warning . . . . . . . . . . . . . . . . . 230
California Perchlorate
Materials Requirements . . . . . 231
Accessories and
Modifications . . . . . . . . . . . . . . . . 231
Vehicle Checks Doing Your Own
Service Work . . . . . . . . . . . . . . . 231
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 232
Engine Compartment
Overview . . . . . . . . . . . . . . . . . . . . 234
Engine Oil . . . . . . . . . . . . . . . . . . . . 237
Engine Oil Life System . . . . . . . 239
Automatic Transmission
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 240
Engine Air Cleaner/Filter . . . . . . 241
Cooling System . . . . . . . . . . . . . . 243
Engine Overheating . . . . . . . . . . 247
Washer Fluid . . . . . . . . . . . . . . . . . 248
Brakes . . . . . . . . . . . . . . . . . . . . . . . 249
Brake Fluid . . . . . . . . . . . . . . . . . . . 250
Battery - North America . . . . . . 251
All-Wheel Drive . . . . . . . . . . . . . . . 252 Starter Switch Check . . . . . . . . . 252
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . 252
Wiper Blade Replacement . . . . 252
Windshield Replacement . . . . . 254
Gas Strut(s) . . . . . . . . . . . . . . . . . . 254
Headlamp Aiming Headlamp Aiming . . . . . . . . . . . . 255
Bulb Replacement Bulb Replacement . . . . . . . . . . . . 256
Halogen Bulbs . . . . . . . . . . . . . . . . 256
High Intensity Discharge (HID)
Lighting . . . . . . . . . . . . . . . . . . . . . 256
License Plate Lamp . . . . . . . . . . 256
Electrical System Electrical System Overload . . . 257
Fuses and Circuit Breakers . . . 258
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 258
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 261
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 263
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 265
All-Season Tires . . . . . . . . . . . . . . 266
Winter Tires . . . . . . . . . . . . . . . . . . 266
Summer Tires . . . . . . . . . . . . . . . . 267 Tire Sidewall Labeling . . . . . . . . 267
Tire Designations . . . . . . . . . . . . . 269
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 270
Tire Pressure . . . . . . . . . . . . . . . . . 272
Tire Pressure Monitor
System . . . . . . . . . . . . . . . . . . . . . . 274
Tire Pressure Monitor
Operation . . . . . . . . . . . . . . . . . . . 275
Tire Inspection . . . . . . . . . . . . . . . . 279
Tire Rotation . . . . . . . . . . . . . . . . . 279
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . 280
Buying New Tires . . . . . . . . . . . . . 281
Different Size Tires and
Wheels . . . . . . . . . . . . . . . . . . . . . . 282
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 283
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . . . 284
Wheel Replacement . . . . . . . . . . 284
Tire Chains . . . . . . . . . . . . . . . . . . . 285
If a Tire Goes Flat . . . . . . . . . . . . 285
Tire Changing . . . . . . . . . . . . . . . . 287
Compact Spare Tire . . . . . . . . . . 292
Jump Starting
Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . 293

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 3/12/19
230 Vehicle Care Towing the Vehicle Towing the Vehicle . . . . . . . . . . . 295
Recreational Vehicle
Towing . . . . . . . . . . . . . . . . . . . . . . 297
Appearance Care Exterior Care . . . . . . . . . . . . . . . . . 300
Interior Care . . . . . . . . . . . . . . . . . . 304
Floor Mats . . . . . . . . . . . . . . . . . . . . 308
General Information For service and parts needs, visit
your dealer. You will receive
genuine GM parts and GM-trained
and supported service people.
Genuine GM parts have one of
these marks:
California Proposition
65 Warning
{ WarningMost motor vehicles, including
this one, as well as many of its
service parts and fluids, contain
and/or emit chemicals known to
the State of California to cause
cancer and birth defects or other
reproductive harm. Engine
exhaust, many parts and
systems, many fluids, and some
component wear by-products
contain and/or emit these
chemicals. For more information
go to www.P65Warnings.ca.gov/
passenger-vehicle.
See Battery - North America 0 251
and
Jump Starting - North America
0 293 and the back cover.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 3/12/19
232 Vehicle Care If equipped with remote vehicle
start, open the hood before
performing any service work to
prevent remote starting the vehicle
accidentally. See Remote Vehicle
Start 0 14 .
Keep a record with all parts receipts
and list the mileage and the date of
any service work performed. See
Maintenance Records 0 322 .
CautionEven small amounts of
contamination can cause damage
to vehicle systems. Do not allow
contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
{ Warning
Turn the vehicle off before
opening the hood. If the vehicle is
on, the engine will start when the
hood is opened. You or others
could be injured. { WarningComponents under the hood can
get hot from running the engine.
To help avoid the risk of burning
unprotected skin, never touch
these components until they have
cooled, and always use a glove or
towel to avoid direct skin contact.
Clear any snow from the hood
before opening.
To open the hood:
1. Pull the hood release lever with
the
i symbol. It is on the
lower left side of the instrument
panel. 2. Go to the front of the vehicle
and locate the secondary
release lever under the front
center of the hood. Push the
secondary hood release lever
to the right to release.
3. After you have partially lifted
the hood, the gas strut system
will automatically lift the hood
and hold it in the fully open
position.
To close the hood:
1. Before closing the hood, be
sure all filler caps are on
properly, and all tools are
removed.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 3/12/19
234 Vehicle Care
Engine Compartment Overview
2.0L L4 Engine

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 3/12/19
Vehicle Care 2351. Engine Air Cleaner/Filter 0 241 .
2. Engine Duct.
3. Engine Oil Fill Cap. See
Engine Oil 0 237 .
4. Engine Oil Dipstick. See
Engine Oil 0 237 .
5. Engine Cover.
6. Brake Fluid Reservoir. See
Brake Fluid 0 250 .
7. Engine Coolant Surge Tank
and Pressure Cap. See
Cooling System 0 243 .
8. Battery - North America 0 251 .
9. Windshield Washer Fluid
Reservoir. See Washer Fluid
0 248 .
10. Engine Compartment Fuse
Block 0 258 .