overheating TOYOTA AVALON HYBRID 2022 Owners Manual

1012. Instrument cluster
2
Instrument cluster
■Engine speed
On hybrid vehicles, engine speed is precisely controlled in ord er to help
improve fuel efficiency and reduce exhaust emissions etc.
There are times when the engine speed that is displayed may dif fer even
when vehicle operation and driving conditions are the same.
■ Outside temperature display
In the following situations, the correct outside temperature may not be dis-
played, or the display may take longer than normal to change:
●When stopped, or driving at low speeds (less than 16 mph [25 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.
NOTICE
■ To prevent damage to the engine and its components
The engine may be overheating if the engine coolant temperature gauge is
in the red zone (H). In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. ( P. 517)

1924-1. Before driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When the vehicle is parked
● Do not leave a door or window open if the curved glass is coated with a
metallized film such as a silver-colored one. Reflected sunligh t may cause
the glass to act as a lens, causing a fire.
● Always apply the parking brake, shift the shift lever to P, stop the hybrid
system and lock the vehicle.
Do not leave the vehicle unattended while the “READY” indicator is illumi-
nated.
If the vehicle is parked with the shift lever in P but the park ing brake is not
set, the vehicle may start to move, possibly leading to an accident.
● Do not touch the exhaust pipes while the “READY” indicator is illuminated
or immediately after turning the hybrid system off.
Doing so may cause burns.
■ When taking a nap in the vehicle
Always turn the hybrid system off. Otherwise, if you accidentally move the
shift lever or depress the accelerator pedal, this could cause an accident or
fire due to hybrid system overheating. Additionally, if the veh icle is parked in
a poorly ventilated area, exhaust gases may collect and enter the vehicle,
leading to death or a serious health hazard.
■ When braking
● When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this may cause
one side of the vehicle to brake differently than the other side. Also, the
parking brake may not securely hold the vehicle.
● If the electronically controlled brake system does not operate, do not fol-
low other vehicles closely and avoid hills or sharp turns that require brak-
ing.
In this case, braking is still possible, but the brake pedal should be
depressed more firmly than usual. Also, the braking distance will increase.
Have your brakes fixed immediately.
● The brake system consists of 2 or more individual hydraulic systems; if
one of the systems fails, the other(s) will still operate. In this case, the
brake pedal should be depressed more firmly than usual and the braking
distance will increase. Have your brakes fixed immediately.

2034-2. Driving procedures
4
Driving
●If a message related to start-up is shown on the multi-informat ion display,
read the message and follow the instructions.
■ Steering lock
After turning the power switch off and opening and closing the doors, the
steering wheel will be locked due to the steering lock function . Operating the
power switch again automatically cancels the steering lock.
■ When the steering lock cannot be released
■ Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be sus-
pended if the hybrid system is turned on and off repeatedly in a short period
of time. In this case, refrain from operating the hybrid system . After about 10
seconds, the steering lock motor will resume functioning.
■ When a message requesting the smart key system be inspected is dis-
played on the multi-information display
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer immediately.
■ If the “READY” indicator does not come on
In the event that the “READY” indicator does not come on even a fter perform-
ing the proper procedures for starting the vehicle, contact you r Toyota dealer
immediately.
■ If the hybrid system is malfunctioning
P. 80
■ If the electronic key battery is depleted
P. 461
■ Operation of the power switch
●If the switch is not pressed shortly and firmly, the power switch mode may
not change or the hybrid system may not start.
● If attempting to restart the hybrid system immediately after tu rning the power
switch off, the hybrid system may not start in some cases. After turning the
power switch off, wait a few seconds before restarting the hybrid system.
■ If the smart key system has been d eactivated in a customized setting
P. 507 A message informing the driver that the
steering wheel is locked will be displayed
on the multi-information display.
Check that the shift lever is set in P. Press
the power switch while turning the steer-
ing wheel left and right.

2184-2. Driving procedures
■Parking the vehicle
P. 186
■ Parking brake operation
●When the power switch is not in ON mode, the parking brake cannot be
released using the parking brake switch.
● When the power switch is not in ON mode, automatic mode (automa tic
brake setting and releasing) is not available.
■ Automatic release function
The parking brake is automatica lly released when slowly depress the acceler-
ator pedal.
The parking brake will be released automatically under the foll owing condi-
tions:
● The driver’s door is closed.
● The driver’s seat belt is fastened.
● Shift the shift lever is in a forward or reverse position.
● The malfunction indicator lamp or brake system warning light is not illumi-
nated.
If the automatic release function does not operate, manually re lease the park-
ing brake.
■ If “Parking Brake Temporarily Un available” is displayed on the multi-
information display
If the parking brake is operated repeatedly over a short period of time, the
system may restrict operation to prevent overheating. If this happens, refrain
from operating the parking brake. Normal operation will return after about 1
minute.
■ If “Parking Brake Unavailable” is displayed on the multi-information dis-
play
Operate the parking brake switch. If the message does not disappear after
operating the switch several times, the system may be malfuncti oning. Have
the vehicle inspected by your Toyota dealer immediately.
■ Parking brake operation sound
When the parking brake operates, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
■ Parking brake indicator light and parking brake light
●Depending on the power switch mode, the parking brake indicator light and
parking brake light will turn on and stay on as described below:
ON mode: Comes on until the parking brake is released.
Not in ON mode: Stays on for approximately 15 seconds.
● When the power switch is turned off with the parking brake set, the parking
brake indicator light and parking brake light will stay on for about 15 sec-
onds. This does not indicate a malfunction.

2194-2. Driving procedures
4
Driving
■Parking brake engaged warning buzzer
A buzzer will sound if the vehicle is driven with the parking b rake engaged.
“Release Parking Brake” is displayed on the multi-information display.
■ Warning messages and buzzers
Warning messages and buzzers are used to indicate a system malfunction or
to inform the driver of the need for caution. If a warning message is shown on
the multi-information display, read the message and follow the instructions.
■ If the brake system warning light comes on
P. 478
■ Usage in winter time
P. 354
WARNING
■When parking the vehicle
Do not leave a child in the vehicle alone. The parking brake may be
released unintentionally and there is the danger of the vehicle moving that
may lead to an accident resulting in death or serious injury.
■ Parking brake switch
Do not set any objects near the parking brake switch. Objects m ay interfere
with the switch and may lead the parking brake to unexpectedly operate.
NOTICE
■ When parking the vehicle
Before you leave the vehicle, shift the shift lever to P, set the parking brake
and make sure that the vehicle does not move.
■ When the system malfunctions
Stop the vehicle in a safe place and check the warning messages.
■ When the parking brake cannot be released due to a malfunction
Driving the vehicle with the parking brake set will lead to bra ke components
overheating, which may affect braking performance and increase brake
wear. Contact your Toyota dealer immediately if this occurs.

3484-5. Using the driving support systems
■Automatic reactivation of TRAC and VSC systems
After turning the TRAC and VSC systems off, the systems will be automati-
cally re-enabled in the following situations:
● When the power switch is turned off
● If only the TRAC system is turned off, the TRAC will turn on wh en vehicle
speed increases
If both the TRAC and VSC systems are turned off, automatic re-e nabling will
not occur when vehicle speed increases
■ Secondary Collision Brake operating conditions
The system operates when the SRS airbag sensor detects a collis ion while
the vehicle is in motion.
However, the system does not operate in any of the following si tuations.
● The vehicle speed is below 6 mph (10 km/h)
● Components are damaged
■ Secondary Collision Brake automatic cancellation
The system is automatically canceled in any of the following si tuations.
● The vehicle speed drops below approximately 6 mph (10 km/h)
● A certain amount of time elapses during operation
● The accelerator pedal is depressed a large amount
■ Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the s ystem from
overheating when there is frequent steering input over an exten ded period of
time. The steering wheel may feel heavy as a result. Should thi s occur, refrain
from excessive steering input or stop the vehicle and turn the hybrid system
off. The EPS system should return to normal within 10 minutes.

5177-2. Steps to take in an emergency
7
When trouble arises
■If the needle of the engine coolant temperature gauge enters
the red zone or “Engine Coolant Temp High Stop in a Safe
Place See Owner’s Manual” is shown on the multi-information
display
Stop the vehicle in a safe place and turn off the air condition ing sys-
tem, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has
cooled down sufficiently,
inspect the hoses and radiator
core (radiator) for any leaks. Radiator
Cooling fan
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
● The needle of the engine c oolant temperature gauge (P. 98)
enters the red zone or a loss of hybrid system power is experi-
enced. (For example, the vehic le speed does not increase.)
● “Engine Coolant Temp High Stop in a Safe Place See Owner’s
Manual” or “Hybrid System Ove rheated Output Power Reduced”
is shown on the multi- information display
● Steam comes out from under the hood.
Correction procedures
1
2
3
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2

568Alphabetical index
Child safety ................................ 5312-volt battery precautions ................. 435, 515
Airbag precautions .................. 37
Battery precautions ....... 435, 515
Child restraint system ............. 54
How your child should wear the seat belt .......................... 30
Installing child restraints ......... 58
Moon roof precautions .......... 184
Power window lock switch .... 177
Power window precautions ... 180
Rear door child-protectors .... 145
Removed electronic key battery precautions ............. 462
Seat belt extender
precautions ........................... 33
Seat belt precautions .............. 32
Seat heater precautions........ 371
Trunk precautions ................. 150
Child-protectors....................... 145
Cleaning ........................... 408, 411 Exterior ................................. 408
Interior................................... 411
Seat belts .............................. 412
Wheels and wheel ornaments .......................... 409 Coat hooks ............................... 398
Condenser................................ 430
Connected Services
*
Console box ............................. 378
Consumption
screen ............................ 106, 130
Coolant
Capacity................................ 528
Checking............................... 429
Preparing and checking before winter ...................... 354
Cooling system........................ 429 Hybrid system
overheating ........................ 517
Cornering lights....................... 223
Cruise control Dynamic radar cruise control with full-speed range .......... 281
Cup holders ............................. 380
Curtain shield airbags............... 35
Customizable features ............ 548

571Alphabetical index
EngineACCESSORY mode ............. 201
Compartment ........................ 425
Engine switch........................ 200
Hood ..................................... 423
How to start the hybrid system ......... ....................... 200
Identification number ............ 525
If your vehicle has to be stopped in an
emergency.......................... 471
Ignition switch (power switch) .................... 200
Overheating .......................... 517
Power switch......................... 200
Engine coolant
Capacity ................................ 528
Checking ............................... 429
Preparing and checking before winter....................... 354
Engine coolant temperature gauge........................................ 98
Engine oil Capacity ................................ 527
Checking ............................... 426
Preparing and checking before winter....................... 354
Engine switch .......................... 200
Enhanced VSC ......................... 344
EPS (Electric Power Steering)...... 345
Warning light ......................... 480
EV drive mode.......................... 206
Event data recorder (EDR) ........................................ 10
Exclusive jump starting terminal .................................. 510 Flat tire ..................................... 494
Floor mats .................................. 24
Fluid
Brake .................................... 529
Hybrid transmission .............. 529
Washer ................................. 432
Front interior light ................... 375
Front passenger occupant
classification system .............. 48
Front passenger’s seat belt
reminder light ........................ 481
Front personal lights............... 375
Front seat heaters ................... 371
Front seats ............................... 159 Adjustment............................ 159
Cleaning ............................... 411
Correct driving posture ........... 26
Driving position memory ....... 163
Head restraints ..................... 168
Power easy access system .......... ...................... 163
Seat heaters ......................... 371
Seat ventilators ..................... 371
Front side marker lights Light switch ........................... 222
Replacing light bulbs ............ 467
Front turn signal lights Replacing light bulbs ............ 467
Turn signal lever ................... 215
Fuel Capacity................................ 526
Fuel gauge.............................. 98
Information............................ 532
Refueling .............................. 234
Type.............................. 526, 532
Warning light......................... 481F

572Alphabetical index
Fuel consumption............ 106, 134
Fuel filler door.......................... 234If the fuel filler door
cannot be opened............... 238
Refueling............................... 234
Fuses ........................................ 464
Garage door opener ................ 399
Gauges ....................................... 98
Glove box ................................. 378
Grocery bag hooks .................. 383
Head restraints ........................ 168
Head-up display ....................... 123
Headlights ................................ 222 Automatic High Beam ........... 226
Light switch ........................... 222
Replacing light bulbs............. 467
Windshield wiper linked headlight illumination .......... 224
Heated steering wheel............. 371
Heaters Automatic air
conditioning system ............ 360
Outside rear view mirrors...... 365
Seat heaters ......................... 371
High mounted stoplight Replacing .............................. 467
High voltage components......... 79
Hill-start assist control............ 344
Hood ......................................... 423 Hooks
Coat hooks ........................... 398
Grocery bag hooks ............... 383
Retaining hooks (floor mat) .... 24
Horn .......................................... 171
HUD (Head-up display) ........... 123
Hybrid battery (traction battery) ..................... 79
Hybrid battery (traction battery) air
intake vent ....................... 80, 456
Hybrid system............................ 75 Acoustic Vehicle Alerting
System ................................. 76
Emergency shut off system .... 80
Energy monitor/ consumption screen ........... 130
EV drive mode ...................... 206
High voltage components ....... 79
Hybrid System Indicator ....... 100
Hybrid system precautions ..... 79
Hybrid vehicle driving tips ..... 351
If the hybrid system will not start ........................ 505
Overheating .......................... 517
Power (ignition) switch.......... 200
Starting the hybrid system .... 200
Hybrid System Indicator ......... 100
Hybrid transmission................ 209
If the shift lever cannot be shifted from P .... 213
Paddle shift switches ............ 212
S mode ................................. 211
G
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