2021 TOYOTA AVALON HYBRID stop start

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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

16Pictorial index
■Instrument panel
Power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 196
Starting the hybrid system/changing the modes . . . . . . . . . . . P. 196
Emergency stop of the hybrid system . . . . . . . . . . . . . . . . . . . P. 449
When the hybrid system will not start . . . . . . . . . . . . . . . . . . . P. 482
Shift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 205
Changing the shift position . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 205
Precautions for towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 451
When the shift lever does not move . . . . . . . . . . . . . . . . . . . . P. 209
Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 98
Reading the meters/adjusting the instrument panel lights . . . . . P. 98
Warning lights/indicator lights . . . . . . . . . . . . . . . . . . . . . . . . . . P. 92
When a warning light comes on . . . . . . . . . . . . . . . . . . . . . . . . P. 455
Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 102
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 102
When the warning messages are displayed . . . . . . . . . . . . . . P. 4651
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271-1. For safe use
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For safety and security
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
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Doing so could cause the driver to lose control of the vehicle.
●Do not place a cushion between the driver or passenger and the seatback.
A cushion may prevent correct posture from being achieved, and reduce
the effectiveness of the seat belt and head restraint.
●Do not place anything under the front seats.
Objects placed under the front seats may become jammed in the seat
tracks and stop the seat from locking in place. This may lead to an acci-
dent and the adjustment mechanism may also be damaged.
●Always observe the legal speed limit when driving on public roads.
●When driving over long distances, take regular breaks before you start to
feel tired.
Also, if you feel tired or sleepy while driving, do not force yourself to con-
tinue driving and take a break immediately.

761-3. Hybrid system
◆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 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 automatically
stop. (P. 77)
◆During normal driving
The gasoline engine is predominantly used. The electric motor
(traction motor) charges the hybrid battery (traction battery) as nec-
essary.
◆When accelerating sharply
When the accelerator pedal is depressed heavily, the power of the
hybrid battery (traction battery) is added to that of the gasoline
engine via the electric motor (traction motor).
◆When braking (regenerative braking)
The wheels operate the electric motor (traction motor) as a power
generator, and the hybrid battery (traction battery) is charged.
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 System

771-3. Hybrid system
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For safety and security
■Regenerative braking
In the following situations, 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 the shift lever in D or S.
■EV indicator
■Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automatically. However, it may not stop
automatically in the following conditions:
●During gasoline engine warm-up
●During hybrid battery (traction battery) charging
●When the temperature of the hybrid battery (traction battery) is high or low
●When the heater is switched on
■Charging the hybrid battery (traction battery)
As the gasoline engine charges the hybrid battery (traction battery), the bat-
tery 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 battery) will
slowly discharge. 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 and you are unable to start
the hybrid system, contact your Toyota dealer.
■Charging the 12-volt battery
P. 490
■After the 12-volt battery has discharged 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, contact your
Toyota dealer. The EV indicator comes on when the
vehicle is driven using only the electric
motor (traction motor) or the gasoline
engine is stopped.

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)

801-3. Hybrid system
There is an air intake vent under
the right side of the rear seat for
the purpose of cooling the hybrid
battery (traction battery). If the
vent becomes blocked, charging/
discharging of the hybrid battery
(traction battery) may become lim-
ited.
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 minimize the risk of electrocution and fuel leakage. If
the emergency shut off system activates, your vehicle will not restart.
To restart the hybrid system, contact your Toyota dealer.
A message is automatically displayed 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. 465)
Hybrid battery (traction battery) air intake vent
Emergency shut off system
Hybrid warning message

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.