2023 TOYOTA HIGHLANDER HYBRID battery

761-4. Hybrid system
limited and the distance that the
vehicle can be driven using the
electric motor (traction motor) is
reduced, the fuel economy may
be reduced.
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.456)
■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
●Make sure not to block the air
intake vent with anything, such
as a seat cover, plastic cover, or
luggage.
The input/output of the hybrid
battery (traction battery) may be
restricted, leading to a reduction
in hybrid battery (traction bat-
tery) output and a malfunction.
●Periodically clean the air intake
vents to prevent them from clog-
ging. ( P.420)
●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).
Emergency shut off sys-
tem
Hybrid warning message

791-5. Theft deterrent system
1
For safety and security
■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.
●The 12-volt battery is recharged or
replaced when the vehicle is
locked. ( P.481)
■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.

882-1. Instrument cluster
■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 engine 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 situations, 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])
• When the outside temperature has changed suddenly (at the
entrance/exit of a garage, tunnel,
etc.)
●When “--” or “E” is displayed, the
system may be malfunctioning.
Take your vehicle to your Toyota
dealer.
■Liquid crystal display
Small spots or light spots may
appear on the display. This phenom-
enon is characteristic of liquid crys-
tal displays, and there is no problem
continuing to use the display.
■Customization
The meters can be customized on of the multi-info rmation display.
(  P.104)
WARNING
■The information display at
low temperatures
Allow the interior of the vehicle to
warm up before using the liquid
crystal information display. At
extremely low temperatures, the
information disp lay monitor may
respond slowly, and display
changes may be delayed.

942-1. Instrument cluster
■Hybrid System IndicatorCharge area
Shows regeneration* status.
Regenerated energy 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 engine 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 bar display within
Eco area, more Eco-friendly driv-
ing 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.
■Engine speed
On hybrid electric vehicles, engine
speed is precisely controlled in
order to help improve fuel efficiency
and reduce exhaust emissions etc.
There are times when the engine
speed that is displayed may differ
even when vehicle operation and
driving conditions are the same.
■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])
• When the outside temperature
has changed suddenly (at the
entrance/exit of a garage, tunnel,
etc.)
●When “--” or “E” i s displayed, the
system may be malfunctioning.
Take your vehicle to your Toyota
dealer.
■Liquid crystal display
Small spots or light spots may
appear on the display. This phenom-
enon is characteristic of liquid crys-
tal displays, and there is no problem
continuing to use the display.
■Free/Open Source Software
Information
This product contains Free/Open
Source Software (FOSS). The
license information and/or the
source code of such FOSS can be
found at the f ollowing URL.
https://www.denso .com/global/en/
opensource/meter/toyota/
■Customization
The gauges and meters can be cus-
tomized in of t he multi-informa-
tion display. ( P.510)

1052-1. Instrument cluster
2
Vehicle status information and indicators
■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.308):
●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.456)
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

1132-1. Instrument cluster
2
Vehicle status information and indicators
WARNING
■Cautions during setting up
the display
If the hybrid system is operating
while changing certain settings on
the settings 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 monoxide (CO) may col-
lect 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.

1162-1. Instrument cluster
■Changing settings of the
head-up display
Select on the multi-informa-
tion display ( P.510) and then
“HUD”.
■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.153)
■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.510)
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.

1172-1. Instrument cluster
2
Vehicle status information and indicators
■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.94.
■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.94)
Displays the following naviga-
tion system linked items:
(Refer to “MULTIMEDIA
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.
■Street name display
Depending on the situation, such as
when no information is available in
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)