2021 BUICK ENVISION Do not

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
296 Vehicle Care
{Warning
Changing a tire can be dangerous. The
vehicle can slip off the jack and roll over
or fall causing injury or death. Find a
level place to change the tire. To help
prevent the vehicle from moving:1. Set the parking brake firmly.
2. Put an automatic transmission in P (Park) or a manual transmission in
1 (First) or R (Reverse).
3. Turn off the engine and do not restart while the vehicle is raised.
4. Do not allow passengers to remain in the vehicle.
5. Place wheel blocks, if equipped, on both sides of the tire at the opposite
corner of the tire being changed. When the vehicle has a flat tire (2), use the
following example as a guide to assist in the
placement of the wheel blocks (1),
if equipped.
1. Wheel Block (If Equipped)
2. Flat Tire
The following information explains how to
repair or change a tire.
Tire Changing
Removing the Spare Tire and Tools
1. Wrench
2. Jack
3. Strap
4. Tow Hook (If Equipped)
To access the spare tire and tools:
1. Open the liftgate. See Liftgate016.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
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2. Lift and fold the rear part of the loadfloor to the front, pull it rearward to
disengage the clips, then pull upward to
remove it.
3. Turn the retainer nut counterclockwise to remove the spare tire. Place the spare
tire next to the tire being changed.
4. The jack and tools are stored below the spare tire. Remove them from their
container and place them near the tire
being changed.
Removing the Flat Tire and Installing the
Spare Tire
Take off the wheel cover or center cap,
if the vehicle has one, to reach the wheel
bolts. 1. Do a safety check before proceeding. See
If a Tire Goes Flat 0295 for more
information.
2. Turn the wheel wrench counterclockwise to loosen and remove the wheel nut
caps. Do not try to remove plastic caps
from the cover or center cap.
3. Pull the cover or center cap away from the wheel. Store the wheel cover in the
cargo area until you have the flat tire
repaired or replaced.
4. Turn the wheel wrench counterclockwiseto loosen all the wheel nuts, but do not
remove them yet.
5. Place the jack near the flat tire.
6. Put the compact spare tire near you.
{Warning
Getting under a vehicle when it is lifted
on a jack is dangerous. If the vehicle slips
off the jack, you could be badly injured
or killed. Never get under a vehicle when
it is supported only by a jack.
{Warning
Raising the vehicle with the jack
improperly positioned can damage the
vehicle and even make the vehicle fall. To
help avoid personal injury and vehicle
damage, be sure to fit the jack lift head
into the proper location before raising
the vehicle.
{Warning
Lifting a vehicle and getting under it to
do maintenance or repairs is dangerous
without the appropriate safety equipment
and training. If a jack is provided with
the vehicle, it is designed only for
changing a flat tire. If it is used for
anything else, you or others could be (Continued)

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
298 Vehicle Care
Warning (Continued)
badly injured or killed if the vehicle slips
off the jack. If a jack is provided with the
vehicle, only use it for changing a
flat tire.
7. Attach the wrench to the jack by fitting the hex end of the wrench over the hex
head of the jack.
8. Place the jack under the vehicle.
Caution
Make sure that the jack lift head is in the
correct position or you may damage your
vehicle. The repairs would not be covered
by your warranty.
Rear Shown, Front Similar
9. Position the jack lift head at the jack location nearest the flat tire. The location
is indicated by a notch in the vertical bottom edge of the body side sheet
metal. The notches in the jack must align
with the notch in the rocker pinch weld.
The jack must not be used in any other
position.
10. Raise the vehicle by turning the jack
handle clockwise. Raise the vehicle far
enough off the ground so there is
enough room for the road tire to clear
the ground.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
300 Vehicle Care
17. Tighten the wheel nuts firmly in acrisscross sequence, as shown.
18. Lower the jack all the way and remove the jack from under the vehicle.
19. Tighten the wheel nuts firmly with the wheel wrench.
When reinstalling the wheel cover or center
cap on the full-size tire, tighten all five
plastic caps hand snug, then tighten them
with the wheel wrench an additional
one-quarter turn.
Caution
Wheel covers will not fit on the vehicle's
compact spare. If you try to put a wheel
cover on the compact spare, the cover or
the spare could be damaged.
Storing a Flat or Spare Tire and Tools
{Warning
Storing a jack, a tire, or other equipment
in the passenger compartment of the
vehicle could cause injury. In a sudden
stop or collision, loose equipment could
strike someone. Store all these in the
proper place.
To store the flat tire: 1. Return the jack and tools to their original storage location.
2. Replace the spare tire cover.
3. Place the folded load floor in the rear storage compartment and seat the
clips (1) into the metal brackets (2) on
both sides. Push the load floor forward
slightly, then unfold it and lower it into
place.
4. Place the flat tire, lying flat, in the rear storage compartment.
5. Place the loop end of the strap through the liftgate striker.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 301
6. Route the strap through the wheel, asshown.
7. Attach the hook to the loop end of the strap.
8. Tighten the strap.
9. Close the liftgate and make sure it is fully latched.
The compact spare is for temporary use
only. Replace the compact spare tire with a
full-size tire as soon as possible.
Compact Spare Tire
{Warning
Driving with more than one compact
spare tire at a time could result in loss of
braking and handling. This could lead to a
crash and you or others could be injured.
Use only one compact spare tire at
a time.
If this vehicle has a compact spare tire, it
was fully inflated when new; however, it
can lose air over time. Check the inflation
pressure regularly. It should be 420 kPa
(60 psi).
Stop as soon as possible and check that the
spare tire is correctly inflated after being
installed on the vehicle. The compact spare
tire is designed for temporary use only. The
vehicle will perform differently with the
spare tire installed and it is recommended
that the vehicle speed be limited to 80 km/h
(50 mph). To conserve the tread of the spare
tire, have the standard tire repaired or
replaced as soon as convenient and return
the spare tire to the storage area. When using a compact spare tire, the AWD
(if equipped), ABS, and Traction Control
systems may engage until the spare tire is
recognized by the vehicle, especially on
slippery roads. Adjust driving to reduce
possible wheel slip.
Caution
When the compact spare is installed, do
not take the vehicle through an
automatic car wash with guide rails. The
compact spare can get caught on the rails
which can damage the tire, wheel, and
other parts of the vehicle.
Do not use the compact spare on other
vehicles.
Do not mix the compact spare tire or wheel
with other wheels or tires. They will not fit.
Keep the spare tire and its wheel together.
Caution
Tire chains will not fit the compact spare.
Using them can damage the vehicle and
the chains. Do not use tire chains on the
compact spare.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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302 Vehicle Care
Jump Starting
Jump Starting - North America
For more information about the vehicle
battery, seeBattery - North America 0268.
If the battery has run down, try to use
another vehicle and some jumper cables to
start your vehicle. Be sure to use the
following steps to do it safely.
{Warning
WARNING: Battery posts, terminals, and
related accessories contain lead and lead
compounds, chemicals known to the
State of California to cause cancer and
birth defects or other reproductive harm.
Batteries also contain other chemicals
known to the State of California to cause
cancer. WASH HANDS AFTER HANDLING.
For more information go to
www.P65Warnings.ca.gov/
passenger-vehicle.
See California Proposition 65 Warning 0254
and the back cover.
{Warning
Batteries can hurt you. They can be
dangerous because:
.They contain acid that can burn you.
.They contain gas that can explode or
ignite.
.They contain enough electricity to
burn you.
If you do not follow these steps exactly,
some or all of these things can hurt you.
Caution
Ignoring these steps could result in costly
damage to the vehicle that would not be
covered by the vehicle warranty. Trying
to start the vehicle by pushing or pulling
it will not work, and it could damage the
vehicle.
1. Discharged Battery Positive (+) Terminal
2. Discharged Battery Negative (–) Terminal
3. Good Battery Negative (–) Terminal
4. Good Battery Positive (+) Terminal
The discharged battery positive (+) terminal
and the discharged battery negative (–)
terminal are on the driver side of the
vehicle.
The good battery negative (–) terminal and
good battery positive (+) terminal are on
the battery of the vehicle providing the
jump start.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
Vehicle Care 303
The discharged battery positive (+) terminal
is under a cover. Remove the cover to
expose the terminal.1. Check the other vehicle. It must have a 12-volt battery with a negative ground
system.
Caution
If the other vehicle does not have a
12-volt system with a negative ground,
both vehicles can be damaged. Only use
a vehicle that has a 12-volt system with a
negative ground for jump starting.
2. Position the two vehicles so that they are not touching.
3. Set the parking brake firmly and put the transmission in P (Park). See Shifting Into
Park 0201.
Caution
If any accessories are left on or plugged
in during the jump starting procedure,
they could be damaged. The repairs
would not be covered by the vehicle
warranty. Whenever possible, turn off or
unplug all accessories on either vehicle
when jump starting. 4. Turn the ignition off. Turn off all lights
and accessories in both vehicles, except
the hazard warning flashers if needed.
{Warning
An electric fan can start up even when
the engine is not running and can injure
you. Keep hands, clothing, and tools
away from any underhood electric fan.
{Warning
Using a match near a battery can cause
battery gas to explode. People have been
hurt doing this, and some have been
blinded. Use a flashlight if you need
more light.
Battery fluid contains acid that can burn
you. Do not get it on you. If you
accidentally get it in your eyes or on
your skin, flush the place with water and
get medical help immediately.
{Warning
Fans or other moving engine parts can
injure you badly. Keep your hands away
from moving parts once the engine is
running.
5. Connect one end of the red positive (+) cable to the discharged battery
positive (+) terminal.
6. Connect the other end of the red positive (+) cable to the good battery
positive (+) terminal.
7. Connect one end of the black negative (–) cable to the good battery negative
(–) terminal.
8. Connect the other end of the black negative (–) cable to the discharge
battery negative (–) terminal on the
driver side shock tower.
9. Start the engine in the vehicle with the good battery and run the engine at idle
speed for at least four minutes.
10. Try to start the vehicle that had the dead battery. If it will not start after a
few tries, it probably needs service.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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304 Vehicle Care
Caution
If the jumper cables are connected or
removed in the wrong order, electrical
shorting may occur and damage the
vehicle. The repairs would not be covered
by the vehicle warranty. Always connect
and remove the jumper cables in the
correct order, making sure that the cables
do not touch each other or other metal.
Jumper Cable Removal
Reverse the sequence exactly when
removing the jumper cables.
After starting the disabled vehicle and
removing the jumper cables, allow it to idle
for several minutes.
Towing the Vehicle
Caution
Incorrectly towing a disabled vehicle may
cause damage. The damage would not be
covered by the vehicle warranty. Do not
lash or hook to suspension components.
Use the proper straps around the tires to
secure the vehicle. Do not drag a locked
(Continued)
Caution (Continued)
wheel/tire. Use tire skates or dollies
under any locked wheel/tire while
loading the vehicle. Do not use a sling
type lift to tow the vehicle. This could
damage the vehicle.
Caution
Improper use of the tow eye can damage
the vehicle. If equipped, use the tow eye
to load a disabled vehicle onto a flatbed
tow truck from a flat road surface, or to
move the vehicle a short distance. Use
caution and low speeds. The transmission
must be in (N) Neutral when moving the
vehicle.
GM recommends a flatbed tow truck to
transport a disabled vehicle. Use ramps to
help reduce approach angles, if necessary.
A towed vehicle should have its drive wheels
off the ground. Contact Roadside Assistance
or a professional towing service if the
disabled vehicle must be towed.
The vehicle is equipped with specific
attachment points to be used by the towing
provider. These holes may be used to pull
the vehicle from a flat road surface onto the
flatbed tow truck.
Recreational Vehicle Towing
Caution
Dolly towing or dinghy towing the
vehicle may cause damage because of
reduced ground clearance. Always put the
vehicle on a flatbed truck or trailer.