2021 BUICK ENVISION battery

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-
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.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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12 Keys, Doors, and Windows
3. Remove the old battery. Do not use ametal object.
4. Insert the new battery on the back housing, positive side facing down.
Replace with a CR2032 or equivalent
battery.
5. Align the front and back housing then snap the remote key together.
6. Reinsert the mechanical key.
Remote Vehicle Start
This feature allows the engine to be started
from outside the vehicle.
S: This button on the remote key is for
remote start.
The climate control system will use the
previous settings during a remote start. The
rear window defogger may come on during
remote start based on cold ambient
conditions. The rear defog indicator light
does not come on during remote start.
If equipped, the heated and ventilated front
seats may also come on when the vehicle
personalization setting is enabled. See
Heated and Ventilated Front Seats 039. If equipped with a remote start heated
steering wheel, it may come on during a
remote start. See
Heated Steering Wheel
0 82.
Laws in some local communities may restrict
the use of remote starters. For example,
some laws may require a person using
remote start to have the vehicle in view.
Check local regulations for any
requirements.
If your vehicle is low on fuel, do not use the
remote start feature. The vehicle may run
out of fuel.
The remote key range may be shorter while
the vehicle is running.
Other conditions can affect the performance
of the remote key. See Remote Keyless Entry
(RKE) System 07.
You are allowed multiple starts totaling
30 minutes of engine run time. The
maximum run time of a single start is
15 minutes, and it will shut off
automatically. You could do three 10 minute
starts if you manually shut off after
10 minutes. The last 10 minute start would
shut off automatically as your total
30 minutes will have been used. Starting the Engine Using Remote Start
1. Press
Stwice on the remote key. The
turn signal lamps will flash. The lamps
flash to confirm the request to remote
start the vehicle has been received.
During the remote start, the doors will
be locked and the parking lamps will
remain on as long as the engine is
running.
2. The engine will shut off after 15 minutes or after the remainder of the 30 minute
total running time is used, unless you
stop the remote start before engine
running has completed or the vehicle is
turned on.
3. After entering the vehicle during a remote start, press the brake and ENGINE
START/STOP with the remote key in the
vehicle to drive the vehicle.
Additional Engine Run Time
Remote start can be used for up to
30 minutes of total engine run time.
After two remote starts of 15 minutes,
or multiple shorter time starts totaling
30 minutes have been used, the vehicle
must be started normally before the remote
start can be used again.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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14 Keys, Doors, and Windows
The remote key must be within 1 m (3 ft) of
the liftgate or door being opened. Press the
button on the door handle to open. See
Remote Keyless Entry (RKE) System
Operation07.
Driver Door Key Lock Cylinder Access (In
Case of Dead Battery)
To access the driver door key lock cylinder:
1. Insert the key into the slot at the bottom of the cap.
2. Lift the key upward to remove the cap.
3. Insert the key into the cylinder and turn to unlock.
To replace the cap:
1. Position the bottom edge of the cap under the lower edge of the metal
piece (2). The tabs (3) attach to the
metal piece (2) at the positions (1).
2. Rotate the cap upward and install into place.
3. Check that the cap is secure.
Free-Turning Locks
The door key lock cylinder turns freely when
either the wrong key is used, or the correct
key is not fully inserted. The free-turning
door lock feature prevents the lock from
being forced open. To reset the lock, turn it
to the vertical position with the correct key
fully inserted. Remove the key and insert it
again. If this does not reset the lock, turn
the key halfway around in the cylinder and
repeat the reset procedure.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Keys, Doors, and Windows 17
Manual Liftgate
To open the liftgate, pressKon the power
door lock switch or press
Kon the remote
key twice to unlock all doors. Press the
touchpad on the underside of the liftgate
handle and lift up.
Use the pull cup to lower and close the
liftgate. Do not press the touchpad while
closing the liftgate. This will cause the
liftgate to be unlatched.
For Keyless Access, the remote key must be
within 1 m (3 ft) of the liftgate to
automatically unlock it. See Remote Keyless
Entry (RKE) System Operation 07. The liftgate has an electric latch. If the
battery is disconnected or has low voltage,
the liftgate will not open. The liftgate will
resume operation when the battery is
reconnected and charged.
Always close the liftgate before driving.
Power Liftgate Operation
{Warning
You or others could be injured if caught
in the path of the power liftgate. Make
sure there is no one in the way of the
liftgate as it is opening and closing.
Caution
Driving with an open and unsecured
liftgate may result in damage to the
power liftgate components.
The power liftgate switch is on the driver
door. The vehicle must be in P (Park).
The modes are:
MAX :
Opens to maximum height.
3/4 : Opens to a reduced height that can be
set from 3/4 to fully open. Use to prevent
the liftgate from opening into overhead
obstructions such as a garage door or
roof-mounted cargo. The liftgate can be
manually opened all the way.
OFF : Opens manually only.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Keys, Doors, and Windows 21
The projected logo will only be available for
this remote key after it has been out of
range for at least 20 seconds.
If a remote key is again detected within
approximately 2 m (6 ft) of the liftgate,
or another hands-free operation has been
detected, the one-minute timer will be reset.
The projected logo will not work under
these conditions:
.The vehicle battery is low.
.The transmission is not in P (Park).
.Hands Free Liftgate Control is set to Off
in vehicle personalization. SeeVehicle
Personalization 0109.
.The power liftgate is turned off.
.The vehicle remains parked for 72 hours
or more, with no remote key use or
Keyless Access operation. To re-enable,
press any button on the remote key or
open and close a vehicle door.
The projected logo will not work for a single
remote key when a remote key:
.Has been left within approximately 5 m
(15 ft) of the liftgate for several minutes.
.Has been left inside the vehicle and all
vehicle doors are closed.
.Has approached the area outside of the
liftgate five times within 10 minutes. Lens Cleaning
Use a soft, damp cloth to clean the
recessed lens.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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22 Keys, Doors, and Windows
Hands-Free Liftgate and Projected Logo Availability
ActionHands-Free Liftgate Projected Logo
Remote key entering projected logo
detection zone Operative
On for one minute
Remote key left inside projected logo
detection zone for minimum of 10 minutes Operative
Off until remote key button press or a door is
opened and closed
Remote key brought in and out of projected
logo detection zone five times or more within
10 minutes Operative
Off for one hour or until remote key button
press or a door is opened and closed
Vehicle remains parked for more than
72 hours Operative
Off until remote key button press or a door is
opened and closed
Vehicle battery is low Non-operative Off
Transmission is not in P (Park) Non-operative Off
Power liftgate is turned off Non-operative Off
Hands-free liftgate is disabled in vehicle per-
sonalization Non-operative
Off