2023 TOYOTA COROLLA HYBRID maintenance

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COROLLA HV_U
Pictorial indexSearch by illustration
For safety
and securityMake sure to read through them
(Main topics: Child seat, theft deterrent system)
Vehicle status
information and
indicatorsReading driving-related information
(Main topics: Meters, multi-information display)
Before driving
Opening and closing the doors and windows,
adjustment before driving
(Main topics: Keys, doors, seats)
Driving
Operations and advice which are necessary for
driving
(Main topics: Starting hybrid system, refueling)
Interior featuresUsage of the interior features
(Main topics: Air conditioner, storage features)
Maintenance
and careCaring for your vehicle and maintenance
procedures
(Main topics: Interior and exterior, light bulbs)
When trouble
arisesWhat to do in case of malfunction and emergency
(Main topics: 12-volt battery discharge, flat tire)
Vehicle
specificationsVehicle specifications, customizable features
(Main topics: Fuel, oil, tire inflation pressure)
For ownersReporting safety defects for U.S. owners, and seat
belt and SRS airbag instructions for Canadian
owners
IndexSearch by symptom
Search alphabetically

3TABLE OF CONTENTS
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Power (ignition) switch (vehicles with a smart key system) . 172
EV drive mode ................... 178
Hybrid transmission............ 180
Turn signal lever................. 182
Parking brake ..................... 183
Brake Hold ......................... 187
4-3. Operating the lights and wip- ers
Headlight switch ................. 189
AHB (Automatic High Beam) ......................................... 191
Windshield wipers and washer ......................................... 194
4-4. Refueling Opening the fuel tank cap .. 196
4-5. Using the driving support sys- tems
Toyota Safety Sense 3.0 soft-ware update ..................... 199
Toyota Safety Sense 3.0 .... 201
PCS (Pre-Collision System) ......................................... 207
LTA (Lane Tracing Assist)... 218
LDA (Lane Departure Alert) ......................................... 223
PDA (Proactive driving assist) ......................................... 228
RSA (Road Sign Assist) ..... 234
Dynamic radar cruise control ......................................... 236
Cruise control ..................... 244
Emergency Driving Stop System ......................................... 247
BSM (Blind Spot Monitor)... 249
RCTA (Rear Cross Traffic Alert) function ............................ 254
Safe Exit Assist .................. 260
Driving mode select switch ......................................... 264
Driving assist systems........ 2664-6. Driving tips
Hybrid vehicle driving tips .. 271
Winter driving tips .............. 273
5-1. Using the air conditioning system and defogger
Automatic air conditioning sys-
tem ................................... 278
Heated steering wheel/seat heaters ............................. 284
5-2. Using the interior lights Interior lights list ................. 286
5-3. Using the storage features List of storage features ...... 288
5-4. Other interior features Other interior features ........ 291
6-1. Maintenance and care Cleaning and protecting the vehicle exterior................. 302
Cleaning and protecting the vehicle interior.................. 305
6-2. Maintenance Maintenance requirements......................................... 308
General maintenance......... 310
Emission inspection and mainte- nance (I/M) programs

......312
6-3. Do-it-yourself maintenance Do-it-yourself service precau-tions ................................. 314
Hood .................................. 316
Positioning a floor jack ....... 317
Engine compartment .......... 318
Tires ................................... 325
Tire inflation pressure......... 342
Wheels ............................... 344
5Interior features
6Maintenance and care

4TABLE OF CONTENTS
Air conditioning filter ...........346
Cleaning the hybrid battery (trac- tion battery) air intake vents......................................... 347
Wireless remote control/elec- tronic key battery.............. 350
Checking and replacing fuses ......................................... 354
Light bulbs .......................... 356
7-1. Essential information Emergency flashers ........... 362
If your vehicle has to be stopped in an emergency .............. 363
If the vehicle is submerged or water on the road is rising......................................... 364
7-2. Steps to take in an emergency If your vehicle needs to be towed......................................... 366
If you think something is wrong ......................................... 370
If a warning light turns on or a warning buzzer sounds .... 372
If a warning message is dis- played .............................. 382
If you have a flat tire (vehicles without spare tire) ............ 387
If you have a flat tire (vehicles with a spare tire) .............. 398
If the hybrid system will not start ......................................... 406
If you lose your keys .......... 407
If the electronic key does not operate properly ............... 408
If the 12-volt battery is dis- charged ............................ 410
If your vehicle overheats .... 414
If the vehicle becomes stuck ......................................... 4178-1. Specifications
Maintenance data (fuel, oil level, etc.) .................................. 420
Fuel information ................. 429
Tire information .................. 431
8-2. Customization Customizable features ....... 442
8-3. Initialization Items to initialize ................ 452
9-1. For owners Reporting safety defects for U.S. owners ............................. 454
Reporting safety defects for Canadian owners ............. 454
Seat belt instructions for Cana- dian owners (in French) ... 455
SRS airbag instructions for Canadian owners (in French)......................................... 456
What to do if... (Troubleshooting) ......................................... 464
Alphabetical Index.............. 467
7When trouble arises
8Vehicle specifications
9For owners
Index

7
Also, personal information which
may be used to identify the
owner of the vehicle (name,
gender, age, etc.) is not
recorded.
*1: The recorded data varies accord-ing to the vehicle grade level and
options with which it is equipped.
*2: The vehicle has multiple cam-eras. For details on from which
cameras images are recorded,
contact your Toyota dealer.
 Data provision and use pur-
pose by third parties
Data recorded by the computers
may be used for collision analysis,
malfunction diagnosis, automated
driving, advanced safety and map
related technologies (technology,
product development, product
improvement, etc.) and products
and services which use data (maps
used for automated driving and
advanced safety technologies, driv-
ing condition anal ysis, analysis of
the driving environment, such as
road infrastructure, traffic condition
communication, etc. Herein
referred to as “individual ser-
vices”.) Also, this data may be used
for customer suppo rt related to a
collision, collision analysis or reso-
lution.
In situations such as the following,
Toyota may disclose the recorded
data to a third party:
• When the consent of the vehicle owner (or the lessee if the vehicle
is leased) has been given
• When officially requested by the police, a court of law or a govern-
ment agency • When it is to be used by Toyota in
a lawsuit
• When data is to be used research purposes after processing so that
the data is not ti ed to a specific
vehicle or vehicle owner
In addition to the above, Toyota
may disclose the data recorded by
the Toyota Safety Sense 3.0 to a
third party in the following situa-
tions:
• When separate consent of the vehicle owner (or the lessee if the
vehicle is leased) has been given.
This includes situations when the
user subscribes to an individual
service which is provided by a
second party and uses vehicle
recorded data, where the provider
has obtained the user’s consent
for providing data to a third-party
• When providing data to a com- pany involved in autonomous
driving software, etc. for the pur-
pose of resear ch and develop-
ment (technolo gy, product
development, product improve-
ment, etc.) of automated driving,
advanced safety and map related
technologies
• When providing image data and position information to a company
involved in map creation, etc. for
the purpose of research and
development map related tech-
nologies
• When providing image data and position information to a local
government for t he purpose of
road maintenance, etc.
• When providing processed image data and position information to
traffic condition communication

791-4. Hybrid system
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For safety and security
and you are unable to start the
hybrid system, contact your Toyota
dealer.
■Charging the 12-volt battery
 P. 4 1 2
■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 rear 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 rear seats,
when the hybrid system is started
or stopped.
●Sounds from the hybrid system
may be heard when the trunk lid 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 vent on the side
of the lower part of the rear left
seat.
■Maintenance, repair, recycling,
and disposal
Contact your Toyota dealer regard-
ing maintenance, repair, recycling
and disposal. Do n ot dispose of the
vehicle yourself.
■Customization
Some functions can be customized.
(  P.442)
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).
■Vehicle proximity notification
system
In the following ca ses, the vehicle
proximity notification system may be
difficult for surrounding people to
hear.
●In very noisy areas
●In the wind or the rain
Also, as the vehicle proximity notifi-
cation system is installed on the
front of the vehicle, it may be more
difficult to hear fr om the rear of the
Vehicle proximity notifica-
tion system

871-5. Theft deterrent system
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For safety and security
1-5.Theft deterrent system
Vehicles without a smart key
system
The indicator light flashes after
the key has been removed from
the power switch to indicate that
the system is operating.
The indicator light stops flashing
after the registered key has
been inserted into the power
switch to indicate that the sys- tem has been canceled.
Vehicles with a smart key sys-
tem
The indicator light flashes after
the power switch has been
turned off to indicate that the
system is operating.
The indicator light stops flashing
after the power switch has been
turned to ACC or ON to indicate
that the system has been can-
celed.
■System maintenance
The vehicle has a mainte-
nance-free type immobilizer system.
■Conditions that may cause the
system to malfunction
●If the grip portion of the key is in
contact with a metallic object
●If the key is in close proximity to or
touching a key to the security sys-
tem (key with a built-in transpon-
der chip) of another vehicle
Immobilizer system
The vehicle’s keys have
built-in transponder chips
that prevent the hybrid sys-
tem from starting if a key
has not been previously
registered in the vehicle’s
on-board computer.
Never leave the keys inside
the vehicle when you leave
the vehicle.
This system is designed to
help prevent vehicle theft
but does not guarantee
absolute security against all
vehicle thefts.
Operating the system
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.

881-5. Theft deterrent system
■Items to check before lock-
ing the vehicle
To prevent unexpected trigger-
ing of the alarm and vehicle
theft, make sure of the following:
 Nobody is in the vehicle.
 The windows and moon roof
(if equipped) are closed
before the alarm is set.
 No valuables or other per-
sonal items are left in the
vehicle.
■Setting
Close the doors, trunk and
hood, and lock all the doors. The system will set automati-
cally after 30 seconds.
The indicator light changes from
being on to flashing when the sys-
tem is set.
■Deactivating or stopping
Do one of the following to deac-
tivate or stop the alarms:
 Unlock the doors.
 Turn the power switch to ACC
or ON, or start the hybrid sys-
tem. (The alarm will be deacti-
vated or stopped after a few
seconds.)
■System maintenance
The vehicle has a mainte-
nance-free type alarm system.
■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, the trunk or hood, or
unlocks the vehicle using a door
lock switch or insi de lock button.
Alarm
The alarm uses light and
sound to give an alert when
an intrusion is detected.
The alarm is triggered in the
following situations when
the alarm is set:
A locked door or trunk is
unlocked or opened in any
way other than using the
entry function (if equipped),
wireless remote control,
mechanical key (if
equipped) or key (if
equipped). (The doors will
lock again automatically.)
 The hood is opened.
Setting/deactivating/stop-
ping the alarm system

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Maintenance and care
Maintenance and care
.6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 302
Cleaning and protecting the vehicle interior ........... 305
6-2. Maintenance Maintenance requirements.................................. 308
General maintenance.. 310
Emission inspection and maintenance (I/M) pro-
grams ........................ 312
6-3. Do-it-yourself mainte- nance
Do-it-yourself service pre- cautions ..................... 314
Hood ........................... 316
Positioning a floor jack .................................. 317
Engine compartment ... 318
Tires ............................ 325
Tire inflation pressure.. 342
Wheels ......... ...............344
Air conditioning filter .... 346
Cleaning the hybrid battery (traction battery) air intake
vents.......................... 347
Wireless remote con- trol/electronic key battery.................................. 350
Checking and replacing fuses.......................... 354Light bulbs ...................
356