2021 TOYOTA HIGHLANDER HYBRID remote start

811-5. Theft deterrent system
1
For safety and security
HIGHLANDER HV_U
*: If equipped
■Items to check before lock-
ing the vehicle
To prevent unexpected trigger-
ing of the alarm and vehicle
theft, make sure of the following:
 Nobody is in the vehicle.
 The windows, moon roof (if
equipped) and panoramic
moon roof (if equipped) are
closed before the alarm is set.
 No valuables or other per-
sonal items are left in the
vehicle.
■Setting
Close the doors and hood, and
lock all the doors. The system will be set automatically after 30
seconds.
The security indicator changes from
being on to flashing when the sys-
tem is set.
■Canceling or stopping
Do one of the following to deac-
tivate or stop the alarms:
 Unlock the doors.
 Turn the power switch to ACC
or ON, or start the hybrid sys-
tem. (The alarm will be deacti-
vated or stopped after a few
seconds.)
■System maintenance
The vehicle has a mainte-
nance-free type alarm system.
■Triggering of the alarm
The alarm may be triggered in the
following situations:
(Stopping the alarm deactivates the
alarm system.)
●A person inside the vehicle opens
a door or hood, or unlocks the
vehicle.
Alarm*
The alarm uses light and
sound to give an alert when
an intrusion is detected.
The alarm is triggered in the
following situations when
the alarm is set:
 A locked door is unlocked or
opened in any way other
than using the entry func-
tion, wireless remote control
or mechanical key. (The
doors will lock again auto-
matically.)
 The hood is opened.
Setting/canceling/stop-
ping the alarm system

1333-2. Opening, closing and locking the doors
3
Before driving
HIGHLANDER HV_U
■Conditions affecting the opera-
tion of the smart key system or
wireless remote control
 P. 1 4 7
■If the smart key system or the
wireless remote control does
not operate properly
Use the mechanical key to lock and
unlock the doors. ( P.496)
Replace the key battery with a new
one if it is depleted. ( P.444)
■If the 12-volt battery is dis-
charged
The doors cannot be locked and
unlocked using the smart key sys-
tem or wireless remote control. Lock
or unlock the doors using the
mechanical key. ( P.496)
■Rear seat reminder function
In order to remind you not to forget
luggage, etc. in the rear seat, when
the power switch is turned off after
any of the following conditions are
met, a buzzer will sound and a mes-
sage will be displayed on the
multi-information di splay for approx-
imately 6 seconds.
●The hybrid system is started
within 10 minutes after opening
and closing a rear door.
●A rear door has been opened and
closed after the hybrid system
was started.
However, if a rear door is opened
and then closed within approxi-
mately 2 seconds , the rear seat
reminder function may not operate.
The rear seat rem inder function
determines that luggage, etc. has
been placed in a rear seat based on
opening and closing of a rear door.
Therefore, depending on the situa-
tion, the rear seat reminder function
may not operate and you may still
forget luggage, etc. in the rear seat,
or it may operate unnecessarily.
The rear seat reminder function can
be enabled/disabled. ( P.530)
■Customization
Some functions can be customized.
(  P.530)
WARNING
■To prevent an accident
Observe the following precautions
while driving the vehicle. Failure
to do so may result in a door
opening and an occupant falling
out, resulting in death or serious
injury.
●Ensure that all doors are prop-
erly closed and locked.
●Do not pull the inside handle of
the doors while driving.
Be especially careful for the front
doors, as the doors may be
opened even if the inside lock but-
tons are in locked position.
●Set the rear door child-protector
locks when children are seated
in the rear seats.
■When opening or closing a
door
Check the surroundings of the
vehicle such as wh ether the vehi-
cle is on an incline, whether there
is enough space for a door to
open and whether a strong wind
is blowing. When opening or clos-
ing the door, hold the door handle
tightly to prepare for any unpre-
dictable movement.

1403-2. Opening, closing and locking the doors
HIGHLANDER HV_Uwill automatically close it to the fully
closed position.
●The back door closer can function
when the power switch is in any
mode.
●The back door can be opened
using the back door opener switch
even if the back door closer is
operating.
■Power back door operating con-
ditions
If the following conditions are met,
the power back door can be opened
and closed automatically.
●When the power back door sys-
tem is enabled. ( P.530)
●When the power switch is in ON,
one of the following conditions
must be met in a ddition to the
above conditions:
• The parking brake is engaged.
• The brake pedal is depressed.
• The shift lever is in P.
■Operation of the power back
door
●When the power back door begins
to operate, the emergency flash-
ers will flash twice and a buzzer
will sound.
●When the power back door is dis-
abled, the power back door will
not operate but can be opened
and closed manually.
●When the power back door is
opening/closing, if the power back
door becomes obstructed, opera-
tion will stop.
■Jam protection function
Sensors are installed on the right
and left sides of the power back
door. When the door is automati-
cally closing and the sensors are
pushed due to an object being
clamped, etc., the jam protection
function operates.
From that position the door auto-
matically moves a little in the oppo-
site direction and then the function stops.
■Back door reserve lock function
This function reserves the locking of
the power back door when the
power back door is open. If the fol-
lowing operations are performed, all
of the doors except the power back
door will lock and then the power
back door will lock when it is com-
pletely closed.
1 Close all of the doors, except the
back door.
2 Perform an automatic closing
operation of the power back door
and lock the doors using the
wireless remote control
( P.131) or smart key system
(  P.131) while the power back
door is closing.
A buzzer sounds and the emer-
gency flashers flash to indicate that
all the doors have been closed and
locked.
●If the electronic key is placed
inside the vehicle after starting a
close operation via the door
reserve lock function, the elec-
tronic key may become locked
inside the vehicle.
●If the back door does not fully
close due to the o peration of the
jam protection function, etc., while
the back door is automatically
closing after a do or reserve lock
operation is performed, the door
reserve lock function is canceled
and all the doors will unlock.
●Before leaving the vehicle, make
sure that all the doors are closed
and locked.

1483-2. Opening, closing and locking the doors
HIGHLANDER HV_U• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless keys (that
emit radio waves) are being used
nearby
●When carrying the electronic key
together with the following devices
that emit radio waves
• Portable radio, cellular phone, cordless phone or other wireless
communication devices
• Another electronic key or a wire- less key that emits radio waves
• Personal computers or personal
digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic con-
tent or metallic objects are
attached to the rear window
●When the electronic key is placed
near a battery charger or elec-
tronic devices
●When the vehicle is parked in a
pay parking spot where radio
waves are emitted
■Note for the entry function
●Even when the electronic key is
within the effective range (detec-
tion areas), the system may not
operate properly in the following
cases:
• The electronic key is too close to the window or outside door han-
dle, near the ground, or in a high
place when the doors are locked
or unlocked.
• The electronic key is on the instru-
ment panel, luggage compart-
ment, floor, or in the door pockets
or glove box when the hybrid sys-
tem is started or power switch
modes are changed.
●Do not leave the electronic key on
top of the instrument panel or near
the door pockets when exiting the
vehicle. Depending on the radio
wave reception conditions, it may
be detected by the antenna out- side the cabin and the door will
become lockable from the outside,
possibly trapping the electronic
key inside the vehicle.
●As long as the electronic key is
within the effective range, the
doors may be locked or unlocked
by anyone. However, only the
doors detecting the electronic key
can be used to unlock the vehicle.
●Even if the electro
nic key is not
inside the vehicle, it may be possi-
ble to start the hybrid system if the
electronic key is near the window.
●The doors may unlock or lock if a
large amount of water splashes on
the door handle, such as in the
rain or in a car wash when the
electronic key is within the effec-
tive range. (The doors will auto-
matically be locked after
approximately 60 seconds if the
doors are not opened and closed.)
●If the wireless remote control is
used to lock the doors when the
electronic key is near the vehicle,
there is a possib ility that the door
may not be unlocked by the entry
function. (Use the wireless remote
control to unlock the doors.)
●Touching the door lock or unlock
sensor while wearing gloves may
prevent lock or unlock operation.
●When the lock operation is per-
formed using the lock sensor, rec-
ognition signals will be shown up
to two consecutive times. After
this, no recognition signals will be
given.
●If the door handle becomes wet
while the electronic key is within
the effective range, the door may
lock and unlock repeatedly. In that
case, follow the following correc-
tion procedures to wash the vehi-
cle:
• Place the electronic key in a loca- tion 6 ft. (2 m) or more away from
the vehicle. (Take care to ensure
that the key is not stolen.)
• Set the electronic key to bat-

1493-2. Opening, closing and locking the doors
3
Before driving
HIGHLANDER HV_Utery-saving mode to disable the
smart key system. (
P.147)
●If the electronic key is inside the
vehicle and a door handle
becomes wet during a car wash, a
message may be shown on the
multi-information display and a
buzzer will sound outside the vehi-
cle. To turn off the alarm, lock all
the doors.
●The lock sensor may not work
properly if it com es into contact
with ice, snow, mud, etc. Clean
the lock sensor and attempt to
operate it again, or use the lock
sensor on the lower part of the
door handle.
●A sudden handle operation or a
handle operation immediately
after entering the effective range
may prevent the doors from being
unlocked. Touch the door unlock
sensor and check that the doors
are unlocked bef ore pulling the
door handle again.
●If there is another electronic key in
the detection area, it may take
slightly longer to unlock the doors
after the door handle is gripped.
■When the vehicle is not driven
for extended periods
●To prevent theft of the vehicle, do
not leave the electronic key within
6 ft. (2 m) of the vehicle.
●The smart key system can be
deactivated in advance. ( P.530)
●Setting the electronic key to bat-
tery-saving mode helps to reduce
key battery depletion. ( P.147)
■To operate the system properly
Make sure to carry the electronic
key when operating the system. Do
not get the electronic key too close
to the vehicle when operating the
system from the ou tside of the vehi-
cle.
Depending on the position and hold-
ing condition of the electronic key,
the key may not be detected cor- rectly and the system may not oper-
ate properly. (The alarm may go off
accidentally, or the door lock pre-
vention may not operate.)
■If the smart key
system does
not operate properly
If the doors cannot be
locked/unlocked using the smart key
system, lock/unlock the doors by
performing any of the following:
●Bring the electronic key close to
either front door handle and oper-
ate the entry function.
●Operate the wireless remote con-
trol.
If the doors cannot be
locked/unlocked using the above
methods, use the mechanical key.
(  P.496)
If the hybrid system cannot be
started using the smart key system,
refer to P.497.
■Customization
Some functions can be customized.
(  P.530)
■If the smart key system has
been deactivated in a custom-
ized setting
●Locking and unlocking the doors:
Use the wireless remote control or
mechanical key. ( P.131, 496)
●Starting the hybr id system and
changing power switch modes:
 P. 4 9 7
●Stopping the hybrid system:
P. 2 1 5

1803-5. Opening, closing the windows and moon roof
HIGHLANDER HV_U5
Release the power window
switch for a m oment, resume
pushing the switch in the
one-touch opening direction, and
hold it there for a pproximately 4
seconds or more.
6 Pull and hold the power window
switch in the one-touch closing
direction again. After the door
window is completely closed,
continue holding the switch for a
further 1 second or more.
If you release the switch while the
window is moving, start again from
the beginning.
If the window reverses and cannot
be fully closed or opened, have the
vehicle inspected by your Toyota
dealer.
■Door lock linked window opera-
tion
●The power windows can be
opened and closed using the
mechanical key.
* (  P.497)
●The power windows can be
opened using the wireless remote
control.
* ( P.131)
*: These settings must be custom-
ized at your Toyota dealer.
■Power windows open warning
buzzer
A buzzer sounds and a message is
shown on the multi -information dis-
play when the power switch is
turned off and the driver’s door is
opened with the power windows
open.
■Customization
Some functions can be customized.
(  P.530)
WARNING
Observe the following precau-
tions.
Failing to do so may result in
death or serious injury.
■Closing the windows
●The driver is responsible for all
the power window operations,
including the operation for the
passengers. In order to prevent
accidental operation, especially
by a child, do not let a child
operate the power windows. It is
possible for children and other
passengers to have body parts
caught in the power window.
Also, when ridin g with a child, it
is recommended to use the win-
dow lock switch. (
P.181)
●Check to make sure that all pas-
sengers do not have any part of
their body in a pos ition where it
could be caught when a window
is being operated.
●When using the wireless remote
control or mechanical key and
operating the power windows,
operate the power window after
checking to make sure that
there is no possibility of any
passenger having any of their
body parts caug ht in the win-
dow. Also do not let a child
operate window by the wireless
remote control or mechanical
key. It is possib le for children
and other passengers to get
caught in the power window.
●When exiting the vehicle, turn
the power switch off, carry the
key and exit the vehicle along
with the child. There may be
accidental operation, due to
mischief, etc., that may possibly
lead to an accident.

4226-3. Do-it-yourself maintenance
HIGHLANDER HV_U
Make sure that the 12-volt bat-
tery terminals are not corroded
and that there are no loose con-
nections, cracks, or loose
clamps.
Terminals
Hold-down clamp
■Before recharging
When recharging, the 12-volt bat-
tery produces hydrogen gas which
is flammable and explosive. There-
fore, observe the following precau-
tions before recharging:
●If recharging with the 12-volt bat-
tery installed on the vehicle, be
sure to disconnect the ground
cable.
●Make sure the power switch on
the charger is off when connecting
and disconnecting the charger
cables to the 12-volt battery.
■After recharging/reconnecting
the 12-volt battery
The hybrid system may not start.
Follow the procedure below to ini-
tialize the system.
1 Shift the shift lever to P.
2 Open and close any of the doors.
3 Restart the hybrid system.
●Unlocking the doors using the
smart key system may not be pos-
sible immediately after reconnect-
ing the 12-volt battery. If this
happens, use the wireless remote
control or the mechanical key to
lock/unlock the doors.
●Start the hybrid system with the
power switch in ACC. The hybrid
system may not start with the
power switch turned off. However,
the hybrid system will operate nor-
mally from the second attempt.
●The power switch mode is
recorded by the vehicle. If the
12-volt battery is reconnected, the
vehicle will return the power
switch mode to the status it was in
before the 1 2-volt battery was dis-
connected. Make sure to turn off
the power before disconnect the
12-volt battery. Take extra care
when connecting the 12-volt bat-
tery if the power switch mode prior
to discharge is unknown.
If the system will not start even after
multiple attempts at all the methods
above, contact you r Toyota dealer.
Exterior
WARNING
■Chemicals in the 12-volt bat-
tery
The 12-volt battery contains poi-
sonous and corrosive sulfuric acid
and may produce hydrogen gas
which is flammable and explosive.
To reduce the risk of death or seri-
ous injury, take the following pre-
cautions while working on or near
the 12-volt battery:

4967-2. Steps to take in an emergency
HIGHLANDER HV_U
spilling out, turn the cap
slowly when removing it.
During refueling, fuel may spill
out from the filler opening due
to air being discharged from
inside the fuel tank. There-
fore, fill the fuel tank carefully
and slowly.
■When the electronic key does
not work properly
●Make sure that the smart key sys-
tem has not been deactivated in
the customization setting. If it is
off, turn the function on. (Custom-
izable features: P.530)
●Check if battery-saving mode is
set. If it is set, cancel the function.
( P.147)
■Unlocking the door
Use the mechanical key
( P.130) in order to perform the
following operations:
If the electronic key
does not operate prop-
erly
If communication between
the electronic key and vehi-
cle is interrupted ( P.147)
or the electronic key cannot
be used because the battery
is depleted, the smart key
system and wireless remote
control cannot be used. In
such cases, the doors can
be opened and the hybrid
system can be started by
following the procedure
below.
Locking and unlocking
the doors