2021 TOYOTA HIGHLANDER HYBRID battery

1473-2. Opening, closing and locking the doors
3
Before driving
HIGHLANDER HV_U
●When an interior alarm sounds
continuously
■Battery-saving function
The battery-saving function will be
activated in order to prevent the
electronic key battery and the
12-volt battery from being dis-
charged while the vehicle is not
operated for a long time.
●In the following situations, the
smart key system may take some
time to unlock the doors.
• The electronic key has been left in
an area of approximately 6 ft. (2
m) of the outside of the vehicle for
10 minutes or longer.
• The smart key system has not been used for 5 days or longer.
●If the smart key system has not
been used for 14 days or longer,
the doors canno t be unlocked at
any doors except the driver’s door.
In this case, take hold of the
driver’s door handle, or use the wireless remote c
ontrol or the
mechanical key, to unlock the
doors.
■Turning an electronic key to
battery-saving mode
When battery-saving mode is set,
battery depletion is minimized by
stopping the electronic key from
receiving radio waves.
Press twice while pressing and
holding . Confirm that the elec-
tronic key indicator flashes 4 times.
While the battery-saving mode is
set, the smart key system cannot be
used. To cancel the function, press
any of the electronic key buttons.
■Conditions affecting operation
The smart key system uses weak
radio waves. In the following situa-
tions, the communication between
the electronic key and the vehicle
may be affected, preventing the
smart key system, wireless remote
control and immobilizer system from
operating proper ly. (Ways of cop-
ing: P.496)
●When the electronic key battery is
depleted
●Near a TV tower, electric power
plant, gas station, radio station,
large display, airpo rt or other facil-
ity that generates strong radio
waves or electrical noise
●When the electronic key is in con-
tact with, or is c overed by the fol-
lowing metallic objects
• Cards to which aluminum foil is
attached
• Cigarette boxes that have alumi- num foil inside
SituationCorrection
procedure
An attempt was
made to lock the
vehicle while a door
was open.Close all of
the doors
and lock the
doors again.
SituationCorrection procedure
The power switch
was turned to ACC
while the driver’s
door was open (or
the driver’s door was
opened while the
power switch was in
ACC).
Turn the
power
switch off
and close
the driver’s
door.
The power switch
was turned off while
the driver’s door was
open.Close the
driver’s
door.

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

1813-5. Opening, closing the windows and moon roof
3
Before driving
HIGHLANDER HV_U
This function can be used to
prevent children from acciden-
tally opening or closing a pas-
senger window.
Press the switch.
The indicator will come on and
the passenger windows will be
locked.
The passenger windows can still be
opened and closed using the
driver’s switch even if the lock
switch is on.
■The power windows can be
operated when
The power switch is in ON.
■When the 12-volt battery is dis-
connected
The window lock switch is disabled.
If necessary, press the window lock
switch after reconnecting the 12-volt
battery.
WARNING
■Jam protection function
●Never use any part of your body
to intentionally a ctivate the jam
protection function.
●The jam protection function may
not work if something gets
jammed just before the window
is fully closed. Be careful not to
get any part of your body
jammed in the window.
■Catch protection function
●Never use any part of your body
or clothing to intentionally acti-
vate the catch p rotection func-
tion.
●The catch protection function
may not work if something gets
caught just before the window is
fully opened. Be careful not to
get any part of your body or
clothing caught in the window.
Preventing accidental
operation (window lock
switch)

2134-2. Driving procedures
4
Driving
HIGHLANDER HV_U
4-2.Driving procedures
1Check that the parking brake
is set.
2 Check that the shift lever is in
P.
3 Firmly depress the brake
pedal.
and a message will be dis-
played on the multi-information dis-
play.
If it is not displayed, the hybrid sys-
tem cannot be started.
4 Press the power switch
shortly and firmly.
When operating the power switch,
one short, firm press is enough. It is
not necessary to press and hold the
switch.
If the “READY” indicator turns on,
the hybrid system will operate nor-
mally.
Continue depressing the brake
pedal until the “READY” indicator is
illuminated.
The hybrid system can be started from any power switch mode.
5
Check that the “READY” indi-
cator is illuminated.
The vehicle will not move when the
“READY” indicator is off.
■If the hybrid system does not
start
●The immobilizer system may not
have been deactivated. ( P. 7 9 )
Contact your Toyota dealer.
●If a message related to start-up is
shown on the multi-information
display, read the message and fol-
low the instructions.
■When the ambient temperature
is low, such as during winter
driving conditions
When starting the hybrid system,
the flashing time of the “READY”
indicator may be long. Leave the
vehicle as it is until the “READY”
indicator is steady on, as steady
means the vehicle is able to move.
■Sounds and vibrations specific
to a hybrid vehicle
 P. 7 3
■If the 12-volt b attery is dis-
charged
The hybrid system cannot be started
using the smart key system. Refer
to P.498to r estart the hybrid system.
■Electronic key battery depletion
 P.128
Power (ignition)
switch
Performing the following
operations when carrying
the electronic key on your
person starts the hybrid
system or changes power
switch modes.
Starting the hybrid sys-
tem

2144-2. Driving procedures
HIGHLANDER HV_U
■Conditions affecting operation
 P. 1 4 7
■Note for the entry function
 P. 1 4 8
■Steering lock function
●After turning the power switch off
and opening and closing the
doors, the steering wheel will be
locked due to the steering lock
function. Operating the power
switch again automatically can-
cels the steering lock.
●When the steering lock cannot be
released, “Push Power Switch
while Turning Steering Wheel in
Either Direction” will be displayed
on the multi-information display.
Check that the shift lever is in P.
Press the power switch shortly
and firmly while turning the steer-
ing wheel left and right.
●To prevent the steering lock motor
from overheating, operation of the
motor may be suspended if the
hybrid system is turned on and off
repeatedly in a short period of
time. In this case, refrain from
operating the hybrid system. After
about 10 seconds, the steering
lock motor will resume functioning.
■If the “READY” indicator does
not come on
In the event that the “READY” indi-
cator does not come on even after
performing the proper procedures
for starting the vehicle, contact your
Toyota dealer immediately.
■If the hybrid system is malfunc-
tioning
 P. 7 8
■Electronic key battery
 P.444
■Operation of the power switch
●If the switch is not pressed shortly
and firmly, the power switch mode
may not change o r the hybrid sys-
tem may not start.
●If attempting to restart the hybrid
system immediately after turning
the power switch off, the hybrid
system may not start in some
cases. After turning the power
switch off, please wait a few sec-
onds before restarting the hybrid
system.
■Customization
If the smart key system has been
deactivated in a customized setting,
refer to P.496.
WARNING
■When starting the hybrid sys-
tem
Always start the hybrid system
while sitting in the driver’s seat.
Do not depress t he accelerator
pedal while starting the hybrid
system under any circumstances.
Doing so may cause an accident
resulting in death o r serious injury.
■Caution while driving
If hybrid system failure occurs
while the vehicle is moving, do not
lock or open the doors until the
vehicle reaches a safe and com-
plete stop. Activation of the steer-
ing lock in this circumstance may
lead to an accident, resulting in
death or serious injury.

2174-2. Driving procedures
4
Driving
HIGHLANDER HV_Unot entirely prevent 12-volt battery
discharge. Do not leave the vehicle
with the power switch in ACC or ON
for long periods of time when the
hybrid system is not operating.
If the hybrid system is stopped
with the shift lev
er in a position
other than P, the power switch
will not be turned off but instead
be turned to ACC. Perform the
following procedure to turn the
switch off:
1 Check that the parking brake
is set.
2 Shift the shift lever to P.
3 Check that “ACCESSORY” is
displayed on the multi-infor-
mation display and press the
power switch shortly and
firmly.
4 Check that “ACCESSORY”
or “IGNITION ON” on the multi-information display are
off.
NOTICE
■To prevent 12-volt battery dis-
charge
●Do not leave the power switch
in ACC or ON for long periods of
time without the hybrid system
on.
●If “ACCESSORY” or “IGNITION
ON” is displayed on the
multi-informatio
n display, the
power switch is not off. Exit the
vehicle after turning the power
switch off.
When stopping the hybrid
system with the shift lever
in a position other than P
NOTICE
■To prevent 12-volt battery dis-
charge
Do not stop the hybrid system
when the shift lever is in a position
other than P. If the hybrid system
is stopped in another shift lever
position, the power switch will not
be turned off b ut instead be
turned to ACC. If the vehicle is left
in ACC, 12-volt battery discharge
may occur.

2184-2. Driving procedures
HIGHLANDER HV_U
Turns EV drive mode on/off
When EV drive mode is turned on,
the EV drive mode indicator will
come on. Pressing the switch when
in EV drive mode will return the
vehicle to normal driving (using the
gasoline engine and electric motor
[traction motor]).
■Situations in which EV drive
mode cannot be turned on
It may not be po ssible to turn EV
drive mode on in the following situa-
tions. If it cannot be turned on, a
buzzer will sound and a message
will be shown on the multi-informa-
tion display.
●The temperature of the hybrid sys-
tem is high.
The vehicle has been left in the
sun, driven on a hill, driven at high
speeds, etc.
●The temperature of the hybrid sys-
tem is low.
The vehicle has been left in tem-
peratures lower than about 32°F
(0 °C) for a long period of time,
etc.
●The gasoline engine is warming
up.
●The hybrid battery (traction bat-
tery) is low.
The remaining batt ery level indi-
cated in the energy monitor dis-
play is low. ( P. 1 1 7 )
●Vehicle speed is high.
●The accelerator pedal is
depressed firmly or the vehicle is
on a hill, etc.
●The windshield defogger is in use.
■Switching to EV drive mode
when the gasoline engine is
cold
If the hybrid system is started while
the gasoline engine is cold, the gas-
oline engine will st art automatically
after a short period of time in order
to warm up. In this case, you will
become unable to switch to EV drive
mode.
After the hybrid s ystem has started
and the “READY” indicator has illu-
minated, press the EV drive mode
switch before the gasoline engine
starts to switch to EV drive mode.
EV drive mode
In EV drive mode, electric
power is supplied by the
hybrid battery (traction bat-
tery), and only the electric
motor (traction motor) is
used to drive the vehicle.
This mode allows you to
drive in residential areas
early in the morning and
late at night, or in indoor
parking lots, etc., without
concern for noises and gas
emissions.
However, when the Acoustic
Vehicle Alerting System is
active, the vehicle may pro-
duce sound.
Operating instructions