2021 TOYOTA HIGHLANDER HYBRID battery

781-4. Hybrid system
HIGHLANDER HV_U
When a certain level of impact is
detected by the impact sensor,
the emergency shut off system
blocks the high voltage current
and stops the fuel pump to mini-
mize the risk of electrocution
and fuel leakage. If the emer-
gency shut off system activates, your vehicle will not restart. To
restart the hybrid system, con-
tact your Toyota dealer.
A message is automatically dis-
played when a malfunction
occurs in the hybrid system or
an improper operation is
attempted.
If a warning message is shown
on the multi-information display,
read the message and follow the
instructions. (
P.476)
■If a warning light comes on, a
warning message is displayed,
or the 12-volt battery is discon-
nected
The hybrid system may not start. In
this case, try to start the system
again. If the “READY” indicator does
not come on, contact your Toyota
dealer.
NOTICE
■Hybrid battery (traction bat-
tery) air intake vent
●Do not place objects that will
block the air intake vents. The
hybrid battery (traction battery)
may become limited and be
damaged.
●Clean the air intake/discharge
vents regularly to prevent the
hybrid battery (traction battery)
to be limited.
●Do not allow liquid or foreign
material to enter the air intake
vent as this may cause a short
circuit and damage the hybrid
battery (traction battery).
●A filter is inst alled to the air
intake vent. When the filter
remains noticeably dirty even
after cleaning the air intake
vent, filter cleaning or replace-
ment is recommended. Refer to
P.441for details on how to clean
the filters.
Emergency shut off sys-
tem
Hybrid warning message

821-5. Theft deterrent system
HIGHLANDER HV_U
●The 12-volt battery is recharged or
replaced when the vehicle is
locked. (P.501)
■Alarm-operated door lock
In the following cases, depending
on the situation, th e door may auto-
matically lock to p revent improper
entry into the vehicle:
●When a person remaining in the
vehicle unlocks the door and the
alarm is activated.
●While the alarm is activated, a
person remaining in the vehicle
unlocks the door.
●When recharging or replacing the
12-volt battery
NOTICE
■To ensure the system oper-
ates correctly
Do not modify or remove the sys-
tem. If modified or removed, the
proper operation of the system
cannot be guaranteed.

902-1. Instrument cluster
HIGHLANDER HV_U
Clock (P. 9 2 )
Speedometer
Fuel gauge
Displays the quantity of fu el remaining in the tank
Odometer and trip meter display ( P.91)
Shift position display ( P.220)
Outside temperature
Displays the outside temperature within the range of -40°F (-40 °C) to 122°F
(50°C). Low outside temperature indicator comes on when the amb ient
temperature is 37°F (3°C) or lower.
Engine coolant temperature gauge
Displays the engine c oolant temperature
■The meters and display illumi-
nate when
The power swit ch is in ON.
■Hybrid System Indicator
READY OFF area
Shows that the hybrid system is not
operating.
Charge area
Shows regeneration
* status.
Regenerated e nergy will be used to
charge the hybrid battery (traction
battery).
Hybrid Eco area
Shows that gasoline engine power
is not being used very often. The gasoline engi
ne will automati-
cally stop and restart under various
conditions.
Eco area
Shows that the vehicle is being
driven in an Eco-friendly manner.
By keeping the indicator needle
within the Eco area, more
Eco-friendly driving can be
achieved.
Power area
Shows that an Eco-friendly driving
range is being exceeded (during full
power driving etc.)
*: When used in this manual, regen- eration refers to the conversion of
energy created by the movement
of the vehicle into electrical
energy.
■Outside temperature display
●In the following sit uations, the cor-
rect outside temperature may not
be displayed, or the display may
take longer than normal to
change:
• When stopped, or driving at low
speeds (less than 12 mph [20
km/h])

1002-1. Instrument cluster
HIGHLANDER HV_USelect to change the displayed con-
tent of the following:
• Hybrid system indicator
Select to display/not display the
Eco Accelerator Guidance. (
P. 9 0 )
• Fuel economy display
Select to change the average fuel
consumption display between after
start/after reset. ( P. 9 4 )

Select to display/not display the
audio system linked display.

Select to change the displayed con-
tent of the following:
• Display contents
Select to display/not display the
AWD control (if equipped) and
energy monitor. ( P.97, 117)
• Drive information type
Select to change the drive informa-
tion type display between after
start/after reset.
• Drive information items
Select to set the first and second
items of the drive information dis-
play to any of the following: aver-
age vehicle
speed/distance/elapsed time.
 Trip Summary
Select to turn the d isplay of a trip
summary display.
 Pop-up display
Select to enable/disable pop-up
displays for each relevant system.
Multi-information display off
Displays a blank screen.
Default setting
Select to reset the meter display
settings to the default setting.
■Vehicle functions and set-
tings that can be changed
 P.530
■Suspension of the settings dis-
play
●Some settings cannot be changed
while driving. When changing set-
tings, park the vehicle in a safe
place.
●If a warning message is displayed,
operation of the settings display
will be suspended.
■Pop-up displays
Depending on the pop-up display,
the currently displayed item in the
message display area may be tem-
porarily not displayed. The item will
be displayed after the pop-up dis-
play is no longer displayed.
WARNING
■Cautions during setting up
the display
As the hybrid system needs to be
operating during setting up the
display, ensure that the vehicle is
parked in a place with adequate
ventilation. In a closed area such
as a garage, exhaust gases
including harmful carbon monox-
ide (CO) may collect and enter
the vehicle. This may lead to
death or a serious health hazard.
NOTICE
■During setting up the display
To prevent 12-volt battery dis-
charge, ensure that the hybrid
system is operating while setting
up the display features.

1102-1. Instrument cluster
HIGHLANDER HV_Usettings to the default setting.
■Vehicle functions and set-
tings that can be changed
 P.530
■Background color of the indica-
tor/shift position display area
The background color of the indica-
tor/shift position display area is
changed according to the driving
mode as follows ( P.322):
●Eco drive mode: Blue
●Sport mode: Red
■Suspension of the settings dis-
play
●Some settings cannot be changed
while driving. When changing set-
tings, park the vehicle in a safe
place.
●If a warning message is displayed,
operation of the settings display
will be suspended.
■Pop-up displays
Depending on the pop-up display,
the currently disp layed item in the
message display area may be tem-
porarily not displayed. The item will
be displayed after the pop-up dis-
play is no longer displayed.
Select to display warning mes-
sages and measures to be
taken if a malfunction is
detected. ( P.476)
Displays suggestions to the
driver in the following situations.
To select a response to a dis-
played suggestion, use the
meter control switches.
■Suggestion to turn off the
headlights
If the headlights are left on for a
certain amount of time after the
power switch has been turned
off, if the headlight switch is in
the “AUTO” position, a sugges-
tion message will be displayed
asking if you wish to turn the
headlights off.
To turn the headlights off, select
“Yes”.
If the driver's door is opened after
the power switch is turned off, this
suggestion message will not be dis-
played.
WARNING
■Cautions during setting up
the display
As the hybrid system needs to be
operating during setting up the
display, ensure that the vehicle is
parked in a place with adequate
ventilation. In a closed area such
as a garage, exhaust gases
including harmful carbon monox-
ide (CO) may collect and enter
the vehicle. This may lead to
death or a seri ous health hazard.
NOTICE
■During setting up the display
To prevent 12-volt battery dis-
charge, ensure that the hybrid
system is operating while setting
up the display features.
Warning message display
()
Suggestion function

1142-1. Instrument cluster
HIGHLANDER HV_U
■Changing settings of the
head-up display
Select on the multi-informa-
tion display ( P.530) and then
.
■Enabling/disabling the
head-up display
Press to enable/disable the
head-up display.
■Changing the head-up dis-
play settings
Press and hold to display the
following settings.
 “HUD Brightness/Position”
Select to adjust the brightness and
vertical position of the head-up dis-
play.
“HUD Driving Support”
• Tachometer Settings
Blank/Hybrid System/Tachometer
Select to change the display to
blank (no display)/Hybrid System
Indicator/tachometer.
Select to enable/d isable the follow-
ing items:
• Navigation (if equipped)
• Driving Assist
• Compass (if equipped)
• Audio
 “HUD Rotation”
Select to adjust the angle of the
head-up display.
Press the or switch to adjust the angle of the head-up dis-
play.
■Enabling/disabling of the
head-up display
If the head-up display is disabled, it
will remain disabled when the power
switch is turned o ff then back to ON.
■Display brightness
The brightness of the head-up dis-
play can be adjusted on of the
multi-information di splay. Also, it is
automatically adjusted according to
the ambient brightness.
■Automatic adjustment of the
head-up display position (vehi-
cles with driving position mem-
ory)
A desired head-up display position
can be entered to memory and
recalled automatica lly by the driving
position memory system. ( P.159)
■When the 12-volt battery is dis-
connected
The customize settings of the
head-up display will be reset.
■Customization
Some functions can be customized.
(  P.530)
Using the head-up display
WARNING
■Caution for changing settings
of the head-up display
As the hybrid system needs to be
operating while changing the set-
tings of the head-up display,
ensure that the vehicle is parked
in a place with adequate ventila-
tion. In a closed area such as a
garage, exhaust gases including
harmful carbon monoxide (CO)
may collect and enter the vehicle.
This may lead to death or a seri-
ous health hazard.

1152-1. Instrument cluster
2
Vehicle status information and indicators
HIGHLANDER HV_U
■Hybrid System IndicatorCharge area
Hybrid Eco area
Eco area
Power area
Displayed content is the same as
that displayed on the meter (Hybrid
System Indicator). For details, refer
to P.90.
■Tachometer
Displays the engine speed in
revolutions per minute.
■Outside temperature
Displayed in the following situa-
tions:
 When the power switch is
turned to ON (Displayed for approximately 10 seconds)
 When the low outside tem-
perature indicator is flashing
Displayed content is the same
as that displayed on the
multi-information display. For
details, refer to the explanation
of the outside temperature dis-
play on the multi-information
display. ( P.90)
Displays the following naviga-
tion system linked items:
(Refer to “NAVIGATION AND
MULTIMEDIA SYSTEM
OWNER’S MANUAL”.)
■Route guidance to destina-
tion
Displayed when the navigation
system is performing route guid-
ance. When approaching an
intersection, an arrow indicating
the suggested direction of travel
will be displayed.
■Street name
Depending on the situation, the
names of the streets of an
approaching intersection will be
displayed.
■Compass (heading-up dis-
play)
Displays the direction of travel.
NOTICE
■When changing the settings
of the head-up display
To prevent 12-volt battery dis-
charge, ensure that the hybrid
system is operating while the
changing the settings of the
head-up display.
Hybrid System Indica-
tor/Tachometer/Outside
temperature
Navigation system-linked
display area (if equipped)

1202-1. Instrument cluster
HIGHLANDER HV_U
When the vehicle is charging the hybrid battery (traction battery) (Example:
8-inch display)
2WD/AWD models
AWD models only