2021 TOYOTA AVALON HYBRID maintenance

Pictorial indexSearch by illustration
1For safety
and securityMake sure to read through them
2Instrument
clusterHow to read the gauges and meters, the variety of
warning lights and indicators, etc.
3
Operation of
each
componentOpening and closing the doors and windows,
adjustment before driving, etc.
4DrivingOperations and advice which are necessary for
driving
5Interior featuresUsage of the interior features, etc.
6Maintenance
and careCaring for your vehicle and maintenance
procedures
7When trouble
arisesWhat to do in case of malfunction or emergency
8Vehicle
specificationsVehicle specifications, customizable features, etc.
9For ownersReporting safety defects for U.S. owners
IndexSearch by symptom
Search alphabetically

TABLE OF CONTENTS4
5-1. Using the
air conditioning system
and defogger
Automatic air conditioning
system............................. 338
Heated steering wheel/
seat heaters/
seat ventilators ................ 349
5-2. Using the interior lights
Interior lights list ................ 352
• Interior light ................... 353
• Personal lights .............. 353
• Ambient lights ............... 354
5-3. Using the storage
features
List of storage features...... 355
• Glove box...................... 356
• Console box .................. 356
• Bottle holders ................ 357
• Cup holders .................. 358
• Auxiliary boxes.............. 359
• Open tray ...................... 360
Trunk features ................... 361
5-4. Other interior features
Other interior features ....... 362
• Sun visors ..................... 362
• Vanity mirrors................ 362
• Power outlet .................. 363
• USB charging ports....... 364
• Wireless charger ........... 366
• Armrest ......................... 375
• Assist grips ................... 375
• Coat hooks.................... 376
Garage door opener .......... 3776-1. Maintenance and care
Cleaning and protecting
the vehicle exterior .......... 386
Cleaning and protecting
the vehicle interior ........... 389
6-2. Maintenance
Maintenance
requirements ................... 392
General maintenance ........ 394
Emission inspection and
maintenance (I/M)
programs ......................... 398
6-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions ...................... 399
Hood .................................. 401
Positioning a floor jack....... 402
Engine compartment ......... 403
12-volt battery .................... 411
Tires................................... 415
Tire inflation pressure ........ 427
Wheels............................... 430
Air conditioning filter .......... 432
Cleaning the hybrid
battery (traction battery)
air intake vent and
filter.................................. 434
Electronic key battery ........ 439
Checking and replacing
fuses ................................ 442
Light bulbs ......................... 445
5Interior features6Maintenance and care

5
1
9 7 6
5
4
3
2
8
7-1. Essential information
Emergency flashers .......... 448
If your vehicle has
to be stopped in
an emergency ................. 449
If the vehicle is trapped
in rising water .................. 450
7-2. Steps to take in
an emergency
If your vehicle needs
to be towed ..................... 451
If you think something
is wrong........................... 454
If a warning light turns
on or a warning buzzer
sounds ............................ 455
If a warning message
is displayed ..................... 465
If you have a flat tire .......... 471
If the hybrid system will
not start ........................... 482
If the electronic key
does not operate
properly ........................... 484
If the 12-volt battery
is discharged ................... 487
If your vehicle
overheats ........................ 494
If the vehicle becomes
stuck................................ 4988-1. Specifications
Maintenance data
(fuel, oil level, etc.) .......... 502
Fuel information ................. 510
Tire information.................. 513
8-2. Customization
Customizable features ....... 526
8-3. Items to initialize
Items to initialize ................ 535
Reporting safety defects for
U.S. owners ............................. 538
What to do if...
(Troubleshooting) ..................... 540
Alphabetical index ...................... 544
7When trouble arises8Vehicle specifications
9For owners
Index
For information regarding the equipment listed below, refer to “NAV-
IGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
• Navigation system
• Audio/visual system
• Toyota parking assist monitor• Panoramic view monitor
• Connected Services

781-3. Hybrid system
■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” indicator 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 malfunction:
●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 sys-
tem 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 driving 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. (P. 80)
■Acoustic Vehicle Alerting System
In the following cases, the acoustic vehicle alerting system may be difficult for
surrounding people to hear.
●In very noisy areas
●In the wind or the rain
■Maintenance, repair, recycling, and disposal
Contact your Toyota dealer regarding maintenance, repair, recycling and dis-
posal. Do not dispose of the vehicle yourself.
■Customization
Some functions can be customized. (P. 526)

861-4. Theft deterrent system
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 ACCESSORY or ON
mode to indicate that the system
has been canceled.
■System maintenance
The vehicle has a maintenance-free type immobilizer system.
■Conditions that may cause the system to malfunction
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●If the key is in close proximity to or touching a key to the security system
(key with a built-in transponder chip) of another vehicle
Immobilizer system
The vehicle’s keys have built-in transponder chips that prevent
the hybrid system 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 vehi-
cle.
This system is designed to help prevent vehicle theft but does
not guarantee absolute security against all vehicle thefts.

891-4. Theft deterrent system
1
For safety and security
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering 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 personal items are left in the vehicle.
■Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
●The trunk is opened using the mechani-
cal key.
●A person inside the vehicle opens a door
or the trunk or hood, or unlocks the vehi-
cle.
●The 12-volt battery is recharged or
replaced when the vehicle is locked.
(P. 490)

1152. Instrument cluster
2
Instrument cluster
■ Vehicle settings
Press and hold to change the settings of the following items:
ItemSettingsDetails
TPWS (Tire pressure warning system) (P. 416)
Set pressure (tire pressure warning sys-
tem initialization)
Select to initialize the tire pres-
sure warning system. To per-
form initialization, press and hold
the switch.
Before performing initialization,
make sure to adjust the inflation
pressure of each tire to the spec-
ified level. (P. 417)
Change wheel (register tire pressure
warning system sensor ID codes)
Select to register the ID codes of
the tire pressure sensors to the
tire pressure warning system. To
register the ID codes, press and
hold the switch.
(P. 419)
Scheduled maintenance display
Maintenance data reset
Select to reset the message indi-
cating maintenance is required,
after the required maintenance is
performed. (P. 393)

385
6Maintenance and care
6-1. Maintenance and care
Cleaning and protecting
the vehicle exterior .......... 386
Cleaning and protecting
the vehicle interior ........... 389
6-2. Maintenance
Maintenance
requirements ................... 392
General maintenance........ 394
Emission inspection and
maintenance (I/M)
programs......................... 398
6-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions ..................... 399
Hood ................................. 401
Positioning a floor jack ...... 402
Engine compartment ......... 403
12-volt battery ................... 411
Tires .................................. 415
Tire inflation pressure ....... 427
Wheels .............................. 430
Air conditioning filter.......... 432
Cleaning the hybrid
battery (traction battery)
air intake vent and
filter ................................. 434
Electronic key battery........ 439
Checking and replacing
fuses ............................... 442
Light bulbs......................... 445