warning TOYOTA HIGHLANDER HYBRID 2023 Service Manual

741-4. Hybrid system
[11.05 L, 2.4 Imp. gal.], when the
vehicle is on a level surface. This
value may vary when the vehicle is
on a slope. Add extra fuel when the
vehicle is inclined.)
■Electromagnetic waves
●High voltage parts and cables on
hybrid vehicles incorporate elec-
tromagnetic shielding, and there-
fore emit approximately the same
amount of electromagnetic waves
as conventional gasoline pow-
ered vehicles or home electronic
appliances.
●Your vehicle may cause sound
interference in some third
party-produced radio parts.
■Hybrid battery (tr action battery)
The hybrid battery (traction battery)
has a limited service life. The lifes-
pan of the hybrid battery (traction
battery) can change in accordance
with driving style and driving condi-
tions.
WARNING
■High voltage precautions
This vehicle has high voltage DC
and AC systems as well as a
12-volt system. DC and AC high
voltage is very dangerous and
can cause severe burns and elec-
tric shock that may result in death
or serious injury.
●Never touch, disassemble,
remove or replace the high volt-
age parts, cables or their con-
nectors.
●The hybrid system will become
hot after starting as the system
uses high voltage. Be careful of
both the high voltage and the
high temperature, and always
obey the warning labels
attached to the vehicle.
●Never try to open the service
plug access hole located under
the second seat. The service
plug is used only when the vehi-
cle is serviced and is subject to
high voltage.
■Road accident cautions
Observe the following precautions
to reduce the risk of death or seri-
ous injury:
●Pull your vehicle off the road,
shift the shift le ver to P, apply
the parking brake, and turn the
hybrid system off.
●Do not touch the high voltage
parts, cables and connectors.
●If electric wires are exposed
inside or outside your vehicle,
an electric shock may occur.
Never touch exposed electric
wires.
●If a fluid leak occurs, do not
touch the fluid as it may be
strong alkaline electrolyte from
the hybrid battery (traction bat-
tery). If it comes into contact
with your skin or eyes, wash it
off immediately with a large
amount of water or, if possible,
boric acid solution. Seek imme-
diate medical attention.
●If a fire occurs in the hybrid
vehicle, leave the vehicle as
soon as possible. Never use a
fire extinguisher that is not
meant for electric fires. Using
even a small amount of water
may be dangerous.

751-4. Hybrid system
1
For safety and security
There are air intake vents under
each side of the second seat for
the purpose of cooling the
hybrid battery (traction battery).
If the vents are blocked, it may
interfere with the cooling of the
hybrid battery (traction battery).
If input/output of the hybrid bat-
tery (traction battery) becomes
WARNING
●If your vehicle needs to be
towed, do so with all four
wheels raised. If the wheels
connected to the electric motor
(traction motor) are on the
ground when towing, the motor
may continue to generate elec-
tricity. This may cause a fire.
(  P.441)
●Carefully inspect the ground
under the vehicle. If you find
that liquid has leaked onto the
ground, the fuel system may
have been damaged. Leave the
vehicle as soon as possible.
■Hybrid battery (traction bat-
tery)
●Never resell, hand over or mod-
ify the hybrid battery. To prevent
accidents, hybrid batteries that
have been removed from a dis-
posed vehicle are collected
through your Toyota dealer. Do
not dispose of the battery your-
self.
Unless the battery is properly col-
lected, the following may occur,
resulting in dea th or serious
injury:
• The hybrid battery may be ille- gally disposed of or dumped,
and it is hazardous to the envi-
ronment or someone may touch
a high voltage part, resulting in
an electric shock.
• The hybrid battery is intended to be used exclusively with your
hybrid vehicle. If the hybrid bat-
tery is used outside of your
vehicle or modified in any way,
accidents such as electric
shock, heat generation, smoke
generation, an explosion and
electrolyte leakage may occur.
When reselling or handing over
your vehicle, the possibility of an
accident is extremely high
because the person receiving the
vehicle may not be aware of these
dangers.
●If your vehicle is disposed of
without the hybrid battery hav-
ing been removed, there is a
danger of serious electric shock
if high voltage parts, cables and
their connectors are touched. In
the event that your vehicle must
be disposed of, the hybrid bat-
tery must be disposed of by
your Toyota dealer or a qualified
service shop. If the hybrid bat-
tery is not disposed of properly,
it may cause electric shock that
can result in dea th or serious
injury.
NOTICE
■Hybrid battery (traction bat-
tery)
Do not carry large amounts of
water such as water cooler bottles
in the vehicle. If water spills onto
the hybrid battery (traction bat-
tery), the battery may be dam-
aged. Have the vehicle inspected
by your Toyota dealer.
Hybrid battery (traction
battery) air intake vent

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

81
2
2
Vehicle status information and indicators
Vehicle status informationand indicators
.2-1. Instrument cluster
Warning lights and indica-tors ............................... 82
Gauges and meters (7-inch display) ......................... 87
Gauges and meters (12.3-inch display) ........ 91
Multi-information display (7-inch display) ............. 96
Multi-information display (12.3-inch display) ..... 106
Head-up display .......... 114
Energy monitor/consump- tion screen................. 119

822-1. Instrument cluster
2-1.Instrument cluster
For the purpose of explanation, the following illustrations display all
warning lights and indicators illuminated.
7-inch display
The units used on the meters and some indicators may differ
depending on the target region.
War ning lights and indicators
The warning lights and indicators on the instrument cluster,
center panel and outside rear view mirrors inform the driver of
the status of the vehicle’s various systems.
Warning lights and indicators displayed on the instru-
ment cluster

832-1. Instrument cluster
2
Vehicle status information and indicators
12.3-inch display
The units used on the meters and some indicators may differ
depending on the target region.
Warning lights inform the driver
of malfunctions in the indicated
vehicle’s systems.
Warning lights
(U.S.A.)
Brake system warning
light
*1 (  P.445)
(red)
(Canada)
Brake system warning
light
*1 (  P.445)
(yellow)
Brake system warning
light
*1 ( P.445)
High coolant temperature
warning light
*2 (  P.445)
Hybrid system overheat
warning light
*2 (  P.446)
Charging system warning
light
*2 (  P.446)
Low engine oil pressure
warning light
*2 (  P.446)
(U.S.A.)
Malfunction indicator
lamp
*1 ( P.446)
(Canada)
Malfunction indicator
lamp
*1 ( P.446)
SRS warning light
*1
(  P.447)
(U.S.A.)
ABS warning light*1
(  P.447)
(Canada)
ABS warning light*1
(  P.447)
Inappropriate pedal opera-
tion warning light
*2
(  P.447)
(red/yel-
low)
Electric power steering
system warning light
( P.448)
Low fuel leve l warning
light
*1(  P.448)

842-1. Instrument cluster
*1: These lights turn on when the power switch is turned to ON to
indicate that a system check is
being performed. They will turn
off after the hybr
id system is on,
or after a few seconds. There
may be a malfunction in a sys-
tem if a light does not come on,
or turn off. Have the vehicle
inspected by your Toyota dealer.
*2: This light illuminates on the multi-information display.
The indicators inform the driver
of the operating state of the
vehicle’s various systems.
Driver’s and front passen-
ger’s seat belt reminder
light ( P.448)
Rear passengers’ seat
belt reminder light (7-inch
display)
*2 (  P.449)
Rear passengers’ seat
belt reminder light
(12.3-inch display)
*2
(  P.449)
Tire pressure warning
light
*1 (  P.449)
(orange)
LTA indicator ( P.450)
(flashes)
Intuitive parking assist
OFF indicator
*1 (if
equipped) ( P.450)
“RCTA OFF” indicator
*1
(  P.450)
(flashes)
PKSB OFF indicator*1 (if
equipped) ( P.451)
(flashes or
illumi-
nates)PCS warning light*1
(  P.451)
Slip indicator
*1 (  P.452)
(flashes)
(U.S.A.)
Parking brake indicator*1
(  P.452)
(flashes)
(Canada)
Parking brake indicator*1
(  P.452)
(flashes)
Brake hold operated indi-
cator
*1 ( P.452)
WARNING
■If a safety system warning
light does not come on
Should a safety system light such
as the ABS and SRS warning
lights not come on when you start
the hybrid system, this could
mean that these s ystems are not
available to help protect you in an
accident, which could result in
death or serious injury. Have the
vehicle inspected by your Toyota
dealer immediately if this occurs.
Indicators
Turn signal indicator
(  P.216)
(U.S.A.)
Headlight indicator
( P.223)
(Canada)
Tail light indicator
( P.223)
Headlight high beam indi-
cator ( P.225)
Automatic High Beam indi-
cator ( P.226)

852-1. Instrument cluster
2
Vehicle status information and indicators
Drive mode indicators
*1: This light comes on when the
system is turned off.
*2: These lights tu rn on when the
power switch is turned to ON to
indicate that a system check is
being performed. They will turn
off after the hybr id system is on,
or after a few seconds. There
may be a malfunction in a sys-
tem if a light does not come on,
or turn off. Have the vehicle
inspected by your Toyota dealer.
*3: This light illuminates on the out- side rear view mirrors.
Front fog light indicator
(
 P.229)
PCS warning light
*1, 2
(  P.242)
Cruise control indicator
(  P.263)
Dynamic radar cruise con-
trol indicator ( P.263)
Cruise control “SET” indi-
cator ( P.263)
*7
LTA i n d i c a t o r ( P.242,
259)
BSM outside rear view
mirror indicators
*2, 3
(  P.278, 291)
BSM OFF indicator
*1, 2
(  P.278)
Intuitive parking assist
OFF indicator
*1, 2(if
equipped) (P.284)
“RCTA OFF” indicator
*1, 2
(  P.292)
PKSB OFF indicator
*1, 2(if
equipped) (P.299)
(flashes)
Slip indicator*2 (  P.312)
VSC OFF indicator
*1, 2
(  P.313)
Smart key system indica-
tor
*4 (  P.207)
“READY” indicator
(  P.207)
EV drive mode indicator
(  P.211)
(U.S.A.)
Parking brake indicator*2
(  P.217)
(Canada)
Parking brake indicator*2
(  P.217)
Brake hold standby indica-
tor
*2 (  P.220)
Brake hold operated indi-
cator
*2 (  P.220)
EV indicator ( P. 7 0 )
Low outside temperature
indicator
*6 (  P.87)
Security indicator
*5
(  P.77, 78)
“PASS AIR BAG ON/OFF”
indicator
*2, 5 (  P. 4 3 )
“PASS AIR BAG
ON/OFF” indicator
*2,
5
(  P. 4 3 )
Eco drive mode indicator
(  P.308)
Sport mode indicator
(  P.308)
Trail Mode ind icator (if
equipped) ( P.309)

872-1. Instrument cluster
2
Vehicle status information and indicators
■Locations of gauges and meters
The units used on the meters may differ depending on the target region.
Hybrid System Indicator
Displays hybrid system output or regeneration level ( P. 8 8 )
Multi-information display
Presents the driver with a variety of vehicle data (P.96)
Displays warning messages in case of a malfunction (P.456)
Clock ( P. 9 0 )
Speedometer
Fuel gauge
Displays the quantity of fu el remaining in the tank
Odometer and trip meter display ( P.89)
Shift position display ( P.213)
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
Gauges and meters (7-inch display)
Meter display

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.