2021 BUICK ENVISION Do not

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 3/10/21
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Keys, Doors, and Windows . . . . . . . . . . . . . . . 6
Seats and Restraints . . . . . . . . . . . . . . . . . . . . . 32
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Instruments and Controls . . . . . . . . . . . . . . . . 81
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Infotainment System . . . . . . . . . . . . . . . . . . . 125
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . 178
Driving and Operating . . . . . . . . . . . . . . . . . . 186
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Service and Maintenance . . . . . . . . . . . . . . . 313
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . 325
Customer Information . . . . . . . . . . . . . . . . . . 328
Reporting Safety Defects . . . . . . . . . . . . . . . 336
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Connected Services . . . . . . . . . . . . . . . . . . . . . 345
Index . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Introduction
The names, logos, emblems, slogans, vehicle
model names, and vehicle body designs
appearing in this manual including, but not
limited to, GM, the GM logo, BUICK, and the
BUICK Emblem are trademarks and/or
service marks of General Motors LLC, its
subsidiaries, affiliates, or licensors.
For vehicles first sold in Canada, substitute
the same“General Motors of Canada
Company” for Buick Motor Division wherever
it appears in this manual.
This manual describes features that may or
may not be on the vehicle because of
optional equipment that was not purchased
on the vehicle, model variants, country
specifications, features/applications that may not be available in your region, or changes
subsequent to the printing of this owner’s
manual.
Refer to the purchase documentation
relating to your specific vehicle to confirm
the features.
Keep this manual in the vehicle for quick
reference.Canadian Vehicle Owners
A French language manual can be obtained
from your dealer, at www.helminc.com,
or from:
Propriétaires Canadiens
On peut obtenir un exemplaire de ce guide
en français auprès du concessionnaire ou à
l'adresse suivante:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
USA
Litho in U.S.A.
Part No. 84299675 C Third Printing©2021 General Motors LLC. All Rights Reserved.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
2 Introduction
Using this Manual
To quickly locate information about the
vehicle, use the Index in the back of the
manual. It is an alphabetical list of what is
in the manual and the page number where
it can be found.
About Driving the Vehicle
As with other vehicles of this type, failure to
operate this vehicle correctly may result in
loss of control or a crash. Be sure to read
the driving guidelines in this manual in the
section called“Driving and Operating” and
specifically Driver Behavior 0187, Driving
Environment 0187, and Vehicle Design
0 187.
Danger, Warning, and Caution
Warning messages found on vehicle labels
and in this manual describe hazards and
what to do to avoid or reduce them.
{Danger
Danger indicates a hazard with a high
level of risk which will result in serious
injury or death.
{Warning
Warning indicates a hazard that could
result in injury or death.
Caution
Caution indicates a hazard that could
result in property or vehicle damage.
A circle with a slash through it is a safety
symbol which means “Do not,” “Do not do
this,” or“Do not let this happen.”
Symbols
The vehicle has components and labels that
use symbols instead of text. Symbols are
shown along with the text describing the
operation or information relating to a
specific component, control, message, gauge,
or indicator.
M:Shown when the owner’s manual has
additional instructions or information.
*: Shown when the service manual has
additional instructions or information.
0: Shown when there is more information
on another page — “see page.”
Vehicle Symbol Chart
Here are some additional symbols that may
be found on the vehicle and what they
mean. See the features in this manual for
information.
u: Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components Properly
P:Do Not Apply High Pressure Water
B:Engine Coolant Temperature
_:Flame/Fire Prohibited
H: Flammable

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
6 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Remote Keyless Entry (RKE) System . . . . . 7
Remote Keyless Entry (RKE) SystemOperation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Vehicle Start . . . . . . . . . . . . . . . . . . . 12
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . 15
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 15
Automatic Door Locks . . . . . . . . . . . . . . . . . . . 15
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 15
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Doors
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . 23
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 23
Immobilizer Operation . . . . . . . . . . . . . . . . . . 24
Exterior Mirrors
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 25
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 25
Automatic Dimming Mirror . . . . . . . . . . . . . 25
Reverse Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . 25
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . . . . . . . 26
Manual Rearview Mirror . . . . . . . . . . . . . . . . 26
Automatic Dimming Rearview Mirror . . . 26
Rear Camera Mirror . . . . . . . . . . . . . . . . . . . . 26
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Power Windows . . . . . . . . . . . . . . . . . . . . . . . . 28
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with a
remote key is dangerous and children or
others could be seriously injured or killed.
They could operate the power windows
or other controls or make the vehicle
move. The windows will function with
the remote key in the vehicle, and
children or others could be caught in the
path of a closing window. Do not leave
children in a vehicle with a remote key.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
Keys, Doors, and Windows 7
The mechanical key inside the remote key
can be used for all locks.
To remove the mechanical key, press the
button on the side of the remote key, and
pull the mechanical key out. Never pull the
mechanical key out without pressing the
button.
If it becomes difficult to turn the mechanical
key, inspect the key blade for debris.
See your dealer if a new mechanical key is
needed.
With an active OnStar or connected service
plan, an OnStar Advisor may remotely
unlock the vehicle. SeeOnStar Overview
0 340.
Remote Keyless Entry (RKE)
System
If there is a decrease in the remote key
operating range:
.Check the distance. The remote key may
be too far from the vehicle.
.Check the location. Other vehicles or
objects may be blocking the signal.
.Check the remote key battery. See
“Battery Replacement” later in this
section.
.If the remote key is still not working
correctly, see your dealer or a qualified
technician for service.
Remote Keyless Entry (RKE)
System Operation
The Keyless Access system allows for vehicle
entry when the remote key is within 1 m
(3 ft). See “Keyless Access Operation”
following.
The remote key functions may work up to
60 m (197 ft) away from the vehicle.
Other conditions can impact the
performance of the remote key. See Remote
Keyless Entry (RKE) System 07.
With Power Liftgate Shown, Without Similar
Q:Press to lock all doors. The turn signal
indicators may flash and/or the horn may
sound on the first press to indicate locking.
See Vehicle Personalization 0109.
If the driver door is open when
Qis
pressed, all doors will lock and the driver
door will immediately unlock.
Pressing
Qmay also arm the alarm system.
See Vehicle Alarm System 023.
If equipped with remote folding mirrors,
press and hold
Qfor one second to
remotely fold the mirrors, if enabled. See
Vehicle Personalization 0109.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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8 Keys, Doors, and Windows
K:Press to unlock the driver door. PressKagain within five seconds to unlock all
doors. The remote key can be programmed
to unlock all doors on the first button press.
See Vehicle Personalization 0109. When
remotely unlocking the vehicle at night, the
lights come on briefly to light your
approach to the vehicle. The turn signal
indicators may flash to indicate unlocking.
Pressing
Kwill disarm the alarm system.
See Vehicle Alarm System 023.
If equipped with remote folding mirrors,
press and hold
Kfor one second to
remotely unfold the mirrors, if enabled. See
Vehicle Personalization 0109.
Press and hold
Kuntil the windows fully
open. Windows will not operate unless
remote window operation is enabled. See
Vehicle Personalization 0109.
S:Double pressSto start the engine
from outside the vehicle using the remote
key. See Remote Vehicle Start 012.
7:Press and release one time to initiate
vehicle locator. The exterior lamps flash and
the horn chirps three times. Press and hold
7for three seconds to sound the panic alarm. The horn sounds and the turn signal
lamps flash for 30 seconds, or until
7is
pressed again or the vehicle is started.
b: If equipped, press twice quickly to
open or close the liftgate.
Press once to stop the liftgate from moving.
Keyless Access Operation
With the Keyless Access system, you can
lock and unlock the doors and access the
liftgate without removing the remote key
from your pocket, purse, briefcase, etc. The
remote key should be within 1 m (3 ft) of the
liftgate or door being opened.
Keyless Access can be programmed to
unlock all doors on the first lock/unlock
press from the driver door. See Vehicle
Personalization 0109.
If equipped with memory seats, remote keys
1 and 2 are linked to seating positions of
memory 1 or 2. See Memory Seats036.
Keyless Unlocking/Locking from the
Driver Door
When the doors are locked and the remote
key is within 1 m (3 ft) of the driver door
handle, pressing the lock/unlock button on
the driver door handle will unlock the driver door. If the lock/unlock button is pressed
again within five seconds, all passenger
doors will unlock.
Driver Shown, Passenger Similar
Pressing the lock/unlock button will cause
all doors to lock if any of the following
occur:
.It has been more than five seconds since
the first lock/unlock button press.
.Two lock/unlock button presses were
used to unlock all doors.
.Any vehicle door has opened and all
doors are now closed.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
Keys, Doors, and Windows 9
Keyless Unlocking/Locking from Passenger
Doors
When the doors are locked and the remote
key is within 1 m (3 ft) of the door handle,
pressing the lock/unlock button on that door
handle will unlock all doors. Pressing the
lock/unlock button will cause all doors to
lock if either of the following occurs:
.The lock/unlock button was used to
unlock all doors.
.Any vehicle door has opened and all
doors are now closed.
Disable/Enable Keyless Unlocking of Exterior
Door Handles and Liftgate
If equipped, keyless unlocking of the exterior
door handles and liftgate can be disabled
and enabled.
Disabling Keyless Unlocking:
With the vehicle off, press and hold
Qand
Kon the remote key at the same time for
approximately three seconds. The turn signal
lamps will flash four times quickly to
indicate access is disabled. Using any
exterior handle to unlock the doors or open
the liftgate will cause the turn signal lamps to flash four times quickly, indicating access
is disabled. If disabled, disarm the alarm
system before starting the vehicle.
Disabling Keyless Unlocking may also be
configured under
Vehicle Personalization
0 109.
Enabling Keyless Unlocking:
With the vehicle off, press and hold
Qand
Kon the remote key at the same time for
approximately three seconds. The turn signal
lamps will flash twice quickly to indicate
access is enabled.
Enabling Keyless Unlocking may also be
configured under Vehicle Personalization
0 109.
Anti-Theft Locking from Any Door
When all doors are locked using the lock/
unlock button, a second press of the button
within five seconds will activate the
Anti-theft Locking System.
Anti-Theft Unlocking from Any Door
When all doors are unlocked using the lock/
unlock button, the Anti-theft Locking system
will be deactivated. Passive Locking
With Keyless Access this vehicle will lock
several seconds after all doors are closed if
the vehicle is off and at least one remote
key has been removed or none remain in
the interior.
The fuel door will also lock.
If other electronic devices interfere with the
remote key signal, the vehicle may not
detect the remote key inside the vehicle.
If passive locking is enabled, the doors may
lock with the remote key inside the vehicle.
Do not leave the remote key in an
unattended vehicle.
To customize the doors to automatically lock
when exiting the vehicle, see
Vehicle
Personalization 0109.
Temporary Disable of Passive Locking
Temporarily disable passive locking by
pressing and holding
Kon the interior door
switch with a door open for at least
four seconds, or until a chime is heard.
Passive locking will then remain disabled
until
Qon the interior door is pressed,
or until the vehicle is turned on.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
10 Keys, Doors, and Windows
Remote Key Left in Vehicle Alert
When the vehicle is turned off and a remote
key is left in the vehicle, the horn will chirp
three times after all doors are closed. To
turn on or off, seeVehicle Personalization
0 109.
Remote Removed From Vehicle Alert
If the vehicle is on, with a door open, and
then all doors are closed, the vehicle will
check for remote key(s) inside. If a remote
key is not detected, the Driver Information
Center (DIC) will display NO REMOTE
DETECTED and the horn will chirp three
times.
This occurs only once each time the vehicle
is driven.
To turn on or off, see Vehicle Personalization
0 109.
Keyless Liftgate Opening
Press the touchpad on the liftgate handle to
open the liftgate if the remote key is within
1 m (3 ft).
Key Access
To access a vehicle with a weak remote key
battery, see Door Locks013.Programming Remote Keys to the
Vehicle
Only remote keys programmed to this
vehicle will work. If a remote key is lost or
stolen, a replacement can be purchased and
programmed through your dealer. When the
replacement remote key is programmed to
this vehicle, all remaining remote keys must
also be reprogrammed. Any lost or stolen
remote keys will no longer work once the
new remote key is programmed.
Starting the Vehicle with a Low Remote
Key Battery
When the vehicle is started, if the remote
key battery is weak, the DIC may display
NO REMOTE DETECTED or NO REMOTE KEY
WAS DETECTED PLACE KEY IN TRANSMITTER
POCKET THEN START YOUR VEHICLE. The DIC
may also display REPLACE BATTERY IN
REMOTE KEY. To start the vehicle:1. Place the remote key in the center
console bin.
2. With the vehicle in P (Park) or N (Neutral), press the brake pedal and
ENGINE START/STOP.
Replace the remote key battery as soon
as possible.
Battery Replacement
{Warning
Never allow children to play with the
remote key. The remote key contains a
small battery, which can be a choking
(Continued)

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Keys, Doors, and Windows 11
Warning (Continued)
hazard. If swallowed, internal burns can
occur, resulting in severe injury or death.
Seek medical attention immediately if a
battery is swallowed.
{Warning
To avoid personal injury, do not touch
metal surfaces on the remote key when
it has been exposed to extreme heat.
These surfaces can be hot to the touch at
temperatures above 59 °C (138 °F).
Caution
When replacing the battery, do not touch
any of the circuitry on the remote key.
Static from your body could damage the
remote key.
Caution
Always replace the battery with the
correct type. Replacing the battery with
an incorrect type could potentially create
(Continued)
Caution (Continued)
a risk of battery explosion. Dispose of
used batteries according to instructions
and local laws. Do not attempt to burn,
crush, or cut the used battery, and avoid
exposing the battery to environments
with extremely low air pressures or high
temperatures.
Replace the battery if the DIC displays
REPLACE BATTERY IN REMOTE KEY.
1. Press the button on the side of the remote key near the bottom and pull the
mechanical key out. Never pull the
mechanical key out without pressing the
button.
2. Separate the two halves of the remotekey using a flat tool inserted into the
bottom center of the remote key. Do not
use the key slot.