2023 TOYOTA HIGHLANDER HYBRID engine

4TABLE OF CONTENTS
Positioning a floor jack .......395
Engine compartment .......... 396
12-volt battery .................... 402
Tires ................................... 404
Tire inflation pressure......... 415
Wheels ............................... 417
Air conditioning filter ........... 418
Cleaning the hybrid battery (trac- tion battery) air intake vents......................................... 420
Electronic key battery ......... 423
Checking and replacing fuses ......................................... 425
Headlight aim ..................... 427
Light bulbs .......................... 428
7-1. Essential information Emergency flashers ........... 438
If your vehicle has to be stopped in an emergency .............. 438
If the vehicle is submerged or water on the road is rising
......................................... 439
7-2. Steps to take in an emergency If your vehicle needs to be towed......................................... 441
If you think something is wrong ......................................... 443
If a warning light turns on or a warning buzzer sounds .... 445
If a warning message is dis- played .............................. 456
If you have a flat tire ........... 461
If the hybrid system will not start ......................................... 474
If you lose your keys .......... 475
If the fuel filler door cannot be opened ............................. 476
If the electronic key does not operate properly ............... 477If the 12-volt battery is dis-
charged ............................ 479
If your vehicle overheats .... 484
If the vehicle becomes stuck ......................................... 488
8-1. Specifications Maintenance data (fuel, oil level, etc.) .................................. 490
Fuel information ................. 498
Tire information .................. 500
8-2. Customization Customizable features ....... 510
8-3. Initialization Items to initialize ................ 523
9-1. For owners Reporting safety defects for U.S. owners ............................. 526
Reporting safety defects for Canadian owners ............. 526
Seat belt instructions for Cana- dian owners (in French) ... 527
SRS airbag instructions for Canadian owners (in French)
......................................... 528
Headlight aim instructions for Canadian owners (in French)......................................... 53
5
What to

do if... (Troubleshooting)
......................................... 538
Alphabetical Index.............. 541
7When trouble arises
8Vehicle specifications
9For owners
Index

6
work properly or the danger that
it may work in situations where it
should not be working.
The installation of a mobile
two-way radio system in your
vehicle could affect electronic
systems such as:
Hybrid system
 Multiport fuel injection sys-
tem/sequential multiport fuel
injection system
 Toyota Safety Sense 2.5 +
 Anti-lock brake system
 SRS airbag system
 Seat belt pretensioner system
Be sure to check with your Toy-
ota dealer for precautionary
measures or special instructions
regarding installation of a mobile
two-way radio system.
High voltage parts and cables
on the hybrid vehicles emit
approximately the same amount
of electromagnetic waves as the
conventional gasoline powered
vehicles or home electronic
appliances despite of their elec-
tromagnetic shielding.
Unwanted noise may occur in
the reception of the mobile
two-way radio. The vehicle is equipped with
sophisticated computers that will
record certain data, such as:
• Engine speed/Electric motor
speed (traction motor speed)
• Accelerator status
• Brake status
• Vehicle speed
• Operation status of the driving assist systems
• Images from the cameras
Your vehicle is equipped with cam-
eras. Contact your Toyota dealer for
the location of re cording cameras.
The recorded data varies
according to the vehicle grade
level and options with which it is
equipped.
These computers do not record
conversations or sounds, and
only record images outside of
the vehicle in certain situations.
Data Transmission
Your vehicle may transmit the data
recorded in these computers to
Toyota without notification to you.
Data usage
Toyota may use the data recorded
in this computer to diagnose mal-
functions, conduct research and
development, and improve quality.
Toyota will not disclose the
recorded data to a third party
except:
• With the consen t of the vehicle
owner or with the consent of the
lessee if the vehicle is leased
Installation of a mobile
two-way radio system
Vehicle data recording

13Pictorial index
Precautions for winter season.............................................. P.320
To prevent freezing (windshiel d wiper de-icer) ..................... P.330
Precautions for car wash
*.................................................... P.381
Fuel filler door ............................................... ..................... P.234
Refueling method ............................................... .................. P.234
Fuel type/fuel tan k capacity ................................... .............. P.491
Tires.......................................................... ........................... P.404
Tire size/inflation pressure ................................... ........ P.404, 495
Winter tires/tire chains ....................................... .................. P.320
Checking/rotation/tire pressur e warning system ..................P.404
Coping with flat tires......................................... .................... P.461
Hood ........................................................... ......................... P.394
Opening ............................................................................... P.394
Engine oil ..................................................... ........................ P.492
Coping with overheating ...................................................... P.484
Warning messages ............................................... ............... P.456
Front turn signal lights/parking lights
*..................... P.216,223
Parking lights
*............................................................... ..... P.223
Headlights/daytime running lights
*.................................. P.223
Headlights..................................................... ...................... P.223
Daytime running lights .. .................................................... P.223
Front side marker lights ....................................... ............. P.223
Parking lights
*/daytime running lights*........................... P.223
Front fog lights ............................................... .................... P.229
Stop/tail lights ............................................... ..................... P.223
Tail lights.................................................... ......................... P.223
Back-up lights
Shifting the shift lever to R ................................................... P.213
Light bulbs of the exterior lights for driving
(Replacing method: P.428, Watts: P.496)

361-1. For safe use
Airbag sensor assembly
Your vehicle is equipped with ADVANCED AIRBAGS designed
based on the US motor vehicle safety standards (FMVSS208). The
airbag sensor assembly (ECU) cont rols airbag deployment based on
information obtained from the sensors etc. shown in the system
components diagram above. This in formation includes crash sever-
ity and occupant information. As the airbags deploy, a chemical
reaction in the inflators quickly fills the airbags with non-toxic gas to
help restrain the motion of the occupants.
■If the SRS airbags deploy
(inflate)
●Slight abrasions, burns, bruising
etc., may be sustained from SRS
airbags, due to the extremely high
speed deployment (inflation) by
hot gases.
●A loud noise and white powder will
be emitted.
●Parts of the airbag module (steer-
ing wheel hub, airbag cover and
inflator) as well as the front seats,
parts of the front and rear pillars,
and roof side rails, may be hot for
several minutes. T he airbag itself
may also be hot.
●The windshield may crack.
●The hybrid system will be stopped
and fuel supply to the engine will
be stopped. ( P. 7 6 )
●All of the doors will be unlocked.
( P.128)
●The brakes and st op lights will be
controlled automatically. ( P.312)
●The interior lights will turn on auto-
matically. ( P.345)
●The emergency flashers will turn
on automatically. ( P.438)
●For Safety Connect subscribers, if
any of the following situations
occur, the system is designed to
send an emergency call to the
response center, notifying them of
the vehicle’s location (without
needing to push the “SOS” button)
and an agent will attempt to speak with the occupants to ascertain
the level of emergency and assis-
tance required. If the occupants
are unable to communicate, the
agent automatically treats the call
as an emergency and helps to dis-
patch the necessary emergency
services. (
P. 6 5 )
• An SRS airbag is deployed.
• A seat belt pretensioner is acti- vated.
• The vehicle is involved in a severe rear-end collision.
■SRS airbag deployment condi-
tions (SRS front airbags)
●The SRS front airbags will deploy
in the event of an impact that
exceeds the set threshold level
(the level of forc e corresponding
to an approximately 12 - 18 mph
[20 - 30 km/h] frontal collision with
a fixed wall that does not move or
deform).
However, this threshold velocity will
be considerably higher in the follow-
ing situations:
• If the vehicle strikes an object, such as a parked vehicle or sign
pole, which can move or deform
on impact
• If the vehicle is involved in an underride collision, such as a colli-
sion in which the front of the vehi-
cle “underrides”, or goes under,
the bed of a truck
●Depending on the type of collision,
it is possible that only the seat belt
pretensioners and SRS seat cush-

681-3. Emergency assistance
■Enhanced Roadside Assis-
tance
Enhanced Roadside Assistance
adds GPS data to the already
included warranty-based Toyota
roadside service.
Subscribers can press the
“SOS” button to reach a Safety
Connect response-center agent,
who can help with a wide range
of needs, such as: towing, flat
tire, fuel delivery, etc. For a
description of the Enhanced
Roadside Assistance services
and their limitations, please see
the Safety Connect Terms and
Conditions, which are available
at Toyota.com in the United
States, Toyotapr.com in Puerto
Rico and Toyota.ca in Canada.
Important! Read this informa-
tion before using Safety Con-
nect.
■Exposure to radio fre-
quency signals
The Safety Connect system
installed in your vehicle is a
low-power radio transmitter and
receiver. It receives and also
sends out radio frequency (RF)
signals.
In August 1996, the Federal
Communications Commission
(FCC) adopted RF exposure
guidelines with safety levels for mobile wireless phones. Those
guidelines are consistent with
the safety standards previously
set by the following U.S. and
international standards bodies.

ANSI (American National
Standards Institute) C95.1
[1992]
 NCRP (National Council on
Radiation Protection and
Measurement) Report 86
[1986]
 ICNIRP (International Com-
mission on Non-Ionizing Radi-
ation Protection) [1996]
Those standards were based on
comprehensive and periodic
evaluations of the relevant sci-
entific literature. Over 120 scien-
tists, engineers, and physicians
from universities, and govern-
ment health agencies and
industries reviewed the avail-
able body of research to
develop the ANSI Standard
(C95.1).
The design of Safety Connect
complies with the FCC guide-
lines in addition to those stan-
dards.
■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://opensource.lge.com/osSch/
list?types=ALL&search=TL21BNU
Safety information for
Safety Connect

691-4. Hybrid system
1
For safety and security
1-4.Hybrid system
■System components
The illustration is an example for explanation and may differ from the actual
item.
Gasoline engine
Front electric motor (traction motor)
Rear electric motor (traction motor)
*
*: AWD models only
■When stopped/during start
off
The gasoline engine stops
*
when the vehicle is stopped. During start off, the electric
motor (traction motor) drives the
vehicle. At slow speeds or when
traveling down a gentle slope,
the engine is stopped
* and the
Hybrid system features
Your vehicle is a hybrid vehicle. It has characteristics differ
ent
from conventional vehicles. Be sure you are closely familiar
with the characteristics of your vehicle, and operate it with
care.
The hybrid system combines the use of a gasoline engine and
an electric motor (traction motor) according to driving condi-
tions, improving fuel efficiency and reducing exhaust emis-
sions.
System components

701-4. Hybrid system
electric motor (traction motor) is
used.
When the shift lever is in N, the
hybrid battery (traction battery)
is not being charged.
*: When the hybrid battery (traction battery) requires charging or the
engine is warming up, etc., the
gasoline engine will not automati-
cally stop. ( P. 7 0 )
■During normal driving
The gasoline engine is predomi-
nantly used. The electric motor
(traction motor) charges the
hybrid battery (traction battery)
as necessary.
■When accelerating sharply
When the accelerator pedal is
depressed heavily, the power of
the hybrid battery (traction bat-
tery) is added to that of the gas-
oline engine via the electric
motor (traction motor).
■When braking (regenera-
tive braking)
The wheels operate the electric
motor (traction motor) as a
power generator, and the hybrid
battery (traction battery) is
charged.
■Regenerative braking
In the following si tuations, kinetic
energy is converted to electric
energy and deceleration force can
be obtained in conjunction with the
recharging of the hybrid battery
(traction battery).
●The accelerator pedal is released
while driving with the shift lever in D or S.
●The brake pedal
is depressed
while driving with t he shift lever in
D or S.
■EV indicator
The EV indicator comes on when
the vehicle is driven using only the
electric motor (traction motor) or the
gasoline engine is stopped.
■Conditions in which the gaso-
line engine may not stop
The gasoline engine starts and
stops automatically. However, it may
not stop automatic ally in the follow-
ing conditions:
●During gasoline engine warm-up
●During hybrid battery (traction bat-
tery) charging
●When the temperature of the
hybrid battery (traction battery) is
high or low
●When the heater is switched on
Depending on the circumstances,
the gasoline engine may also not
stop automatically in other situa-
tions.
■Charging the hybrid battery
(traction battery)
As the gasoline engine charges the
hybrid battery (trac tion battery), the
battery does not need to be charged
from an outside source. However, if
the vehicle is left parked for a long
time the hybrid battery (traction bat-
tery) will slowly dis charge. For this
reason, be sure to drive the vehicle
at least once every few months for
at least 30 minutes or 10 miles (16
km). If the hybrid battery (traction
battery) becomes fully discharged

711-4. Hybrid system
1
For safety and security
and you are unable to start the
hybrid system, contact your Toyota
dealer.
■Charging the 12-volt battery
 P. 4 7 9
■After the 12-volt battery has dis-
charged or when the terminal
has been removed and installed
during exchange, etc.
The gasoline engine may not stop
even if the vehicle is being driven by
the hybrid battery (traction battery).
If this continues for a few days, con-
tact your Toyota dealer.
■Sounds and vibrations specific
to a hybrid vehicle
There may be no engine sound or
vibration even though the vehicle is
able to move with the “READY” indi-
cator is illuminated. For safety, apply
the parking brake and make sure to
shift the shift lever to P when
parked.
The following sounds or vibrations
may occur when the hybrid system
is operating and are not a malfunc-
tion:
●Motor sounds may be heard from
the engine compartment.
●Sounds may be heard from the
hybrid battery (traction battery)
under the second seats when the
hybrid system starts or stops.
●Relay operating sounds such as a
snap or soft clank will be emitted
from the hybrid battery (traction
battery), under the second seats,
when the hybrid system is started
or stopped.
●Sounds from the hybrid system
may be heard when the back door
is open.
●Sounds may be heard from the
transmission when the gasoline
engine starts or stops, when driv-
ing at low speeds, or during idling.
●Engine sounds may be heard
when accelerating sharply.
●Sounds may be heard due to
regenerative braking when the
brake pedal is depressed or as
the accelerator pedal is released.
●Vibration may be felt when the
gasoline engine starts or stops.
●Cooling fan sounds may be heard
from the air intake vents under the
second seats.
■Maintenance, repair, recycling,
and disposal
Contact your Toyota dealer regard-
ing maintenance, repair, recycling
and disposal. Do n ot dispose of the
vehicle yourself.
When driving with the gasoline
engine stopped, a sound, which
changes in accordance with the
driving speed, will be played in
order to warn people nearby of
the vehicle’s approach. The
sound will stop when the vehicle
speed exceeds approximately
22 mph (35 km/h).
■Acoustic vehicle alerting sys-
tem
In the following cases, the acoustic
vehicle alerting system may be diffi-
cult for surrounding people to hear.
●In very noisy areas
●In the wind or the rain
Also, as the acoustic vehicle alerting
system is installed on the front of the
vehicle, it may be more difficult to
hear from the rear of the vehicle
compared to the front.
Acoustic vehicle alerting
system