key battery TOYOTA AVALON 2021 Owners Manual (in English)

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6-1. Maintenance and care
Cleaning and protecting
the vehicle exterior .......... 366
Cleaning and protecting
the vehicle interior ........... 369
6-2. Maintenance
Maintenance
requirements ................... 372
General maintenance ........ 374
Emission inspection and
maintenance (I/M)
programs ......................... 378
6-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions ..................... 379
Hood.................................. 381
Positioning a floor jack ...... 382
Engine compartment ......... 383
Tires .................................. 394
Tire inflation pressure........ 408
Wheels .............................. 411
Air conditioning filter .......... 413
Electronic key battery ........ 415
Checking and replacing
fuses ............................... 418
Light bulbs ......................... 4217-1. Essential information
Emergency flashers ........... 424
If your vehicle has to be
stopped in an
emergency....................... 425
If the vehicle is trapped
in rising water .................. 426
7-2. Steps to take in
an emergency
If your vehicle needs to
be towed .......................... 427
If you think something
is wrong ........................... 432
Fuel pump shut off
system ............................. 433
If a warning light turns on
or a warning buzzer
sounds ............................. 434
If a warning message is
displayed ......................... 444
If you have a flat tire .......... 449
If the engine will
not start ........................... 461
If the electronic key does
not operate properly ........ 463
If the vehicle battery is
discharged ....................... 466
If your vehicle overheats.... 471
If the vehicle becomes
stuck ................................ 474
6Maintenance and care7When trouble arises

811-3. 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 battery is recharged or replaced
when the vehicle is locked. (P. 469)

1233-1. Key information
3
Operation of each component
■Panic mode
■If you lose your mechanical keys
New genuine mechanical keys can be made by your Toyota dealer using the
other mechanical key and the key number stamped on your key number
plate. Keep the plate in a safe place such as your wallet, not in the vehicle.
■When riding in an aircraft
When bringing an electronic key onto an aircraft, make sure you do not press
any button on the electronic key while inside the aircraft cabin. If you are car-
rying an electronic key in your bag etc., ensure that the buttons are not likely
to be pressed accidentally. Pressing a button may cause the electronic key to
emit radio waves that could interfere with the operation of the aircraft.
■Conditions affecting operation
P. 137
■Key battery depletion
●The standard battery life is 1 to 2 years.
●If the battery becomes low, an alarm will sound in the cabin when the engine
stops.
●As the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate that the electronic key battery may be depleted. Replace the battery
when necessary. (P. 415)
• The smart key system or the wireless remote control does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
●To reduce key battery depletion when the electronic key is to not be used for
long periods of time, set the electronic key to the battery-saving mode.
(P. 137)
●To avoid serious deterioration, do not leave the electronic key within 3 ft. (1
m) of the following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers When is pressed for longer than
about one second, an alarm will sound
intermittently and the vehicle lights will
flash to deter any person from trying to
break into or damage your vehicle.
To stop the alarm, press any button on the
electronic key.

1243-1. Key information
■Replacing the battery
P. 415
■Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask
your Toyota dealer for details.
■If a wrong key is used
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5000480046004b00440051004c005600500011[
■Certification for wireless remote control
P. 140
NOTICE
■To prevent key damage
●Do not drop the keys, subject them to strong shocks or bend them.
●Do not expose the keys to high temperatures for long periods of time.
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51004c00460003005a00440056004b00480055000300480057[c.
●Do not attach metallic or magnetic materials to the keys or place the keys
close to such materials.
●Do not disassemble the keys.
●Do not attach a sticker or anything else to the surface of the electronic key.
●Do not place the keys near objects that produce magnetic fields, such as
TVs, audio systems and induction cookers, or medical electrical equip-
ment, such as low-frequency therapy equipment.
■Carrying the electronic key on your person
Carry the electronic key 3.9 in. (10 cm) or more away from electric appli-
ances that are turned on. Radio waves emitted from electric appliances
within 3.9 in. (10 cm) of the electronic key may interfere with the key, caus-
ing the key to not function properly.
■In case of a smart key system malfunction or other key-related prob-
lems
Take your vehicle with all the electronic keys provided with your vehicle to
your Toyota dealer.
■When an electronic key is lost
If the electronic key remains lost, the risk of vehicle theft increases signifi-
cantly. Visit your Toyota dealer immediately with all remaining electronic
keys that were provided with your vehicle.

1363-2. Opening, closing and locking the doors
■Alarms and warning indicators
A combination of exterior and interior alarms as well as warning messages
shown on the multi-information display are used to prevent theft of the vehicle
and accidents resulting from erroneous operation. Take appropriate mea-
sures in response to any warning message on the multi-information display.
(P. 444)
When only an alarm sounds, circumstances and correction procedures are as
follows.
■Battery-saving function
The battery-saving function will be activated in order to prevent the electronic
key battery and the vehicle battery from being discharged while the vehicle is
not in operation for a long time.
●In the following situations, the smart key system may take some time to
unlock the doors.
• The electronic key has been left in an area of approximately 6 ft. (2 m) of
the outside of the vehicle for 10 minutes or longer.
• The smart key system has not been used for 5 days or longer.
●If the smart key system has not been used for 14 days or longer, the doors
cannot be unlocked at any doors except the driver’s door. In this case, take
hold of the driver’s door handle, or use the wireless remote control or the
mechanical key, to unlock the doors.
AlarmSituationCorrection procedure
Exterior alarm sounds
once for 5 secondsAn attempt was made
to lock the vehicle while
a door was open.Close all of the doors
and lock the doors
again.
The trunk was closed
while the electronic key
was still inside the trunk
and all the doors were
locked.Retrieve the electronic
key from the trunk and
close the trunk lid.
Interior alarm pings
repeatedlyThe engine switch was
turned to ACCESSORY
mode while the driver’s
door was open (The
driver’s door was
opened when the
engine switch was in
ACCESSORY mode).Turn the engine switch
off and close the
driver’s door.
The engine switch was
turned off while the
driver’s door was open.Close the driver’s door.

1373-2. Opening, closing and locking the doors
3
Operation of each component
■Electronic Key Battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping
the electronic key from receiving radio waves.
■Conditions affecting operation
The smart key system, wireless remote control and engine immobilizer sys-
tem use weak radio waves. In the following situations, the communication
between the electronic key and the vehicle may be affected, preventing the
smart key system, wireless remote control and engine immobilizer system
from operating properly. (Ways of coping: P. 463)
●When the electronic key battery is depleted
●Near a TV tower, electric power plant, gas station, radio station, large dis-
play, airport or other facility that generates strong radio waves or electrical
noise
●When the electronic key is in contact with, or is covered by the following
metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless keys (that emit radio waves) are being used nearby
●When carrying the electronic key together with the following devices that
emit radio waves
• Portable radio, cellular phone, cordless phone or other wireless commu-
nication devices
• Another vehicle’s electronic key, another electronic key of your vehicle, or
a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or metallic objects are attached to the
rear window
●When the electronic key is placed near a battery charger or electronic
devices
●When the vehicle is parked in a pay parking spot where radio waves are
emitted. Press twice while pressing and hold-
ing . Confirm that the electronic key
indicator flashes 4 times.
While the battery-saving mode is set, the
smart key system cannot be used. To
cancel the function, press any of the elec-
tronic key buttons.

1383-2. Opening, closing and locking the doors
■Note for the entry function
●Even when the electronic key is within the effective range (detection areas),
the system may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near
the ground, or in a high place when the doors are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to
the rear bumper center when the trunk is opened.
• The electronic key is on the instrument panel, rear package tray or floor,
or in the door pockets or glove box when the engine is started or engine
switch modes are changed.
●Do not leave the electronic key on top of the instrument panel or near the
door pockets when exiting the vehicle. Depending on the radio wave recep-
tion conditions, it may be detected by the antenna outside the cabin and the
door will become lockable from the outside, possibly trapping the electronic
key inside the vehicle.
●As long as the electronic key is within the effective range, the doors may be
locked or unlocked by anyone. However, only the doors detecting the elec-
tronic key can be used to unlock the vehicle.
●Even if the electronic key is not inside the vehicle, it may be possible to start
the engine if the electronic key is near the window.
●The doors may unlock or lock if a large amount of water splashes on the
door handle, such as in the rain or in a car wash, when the electronic key is
within the effective range. (The doors will automatically be locked after
approximately 60 seconds if the doors are not opened and closed.)
●If the wireless remote control is used to lock the doors when the electronic
key is near the vehicle, there is a possibility that the door may not be
unlocked by the entry function. (Use the wireless remote control to unlock
the doors.)
●Touching the door lock sensor while wearing gloves may delay or prevent
lock operation. Remove the gloves and touch the lock sensor again.
●When the lock operation is performed using the lock sensor, recognition sig-
nals will be shown up to two consecutive times. After this, no recognition
signals will be given.
*
●If the door handle becomes wet while the electronic key is within the effec-
tive range, the door may lock and unlock repeatedly. In this case, follow the
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• Place the electronic key in a location 6 ft. (2 m) or more away from the
vehicle. (Take care to ensure that the key is not stolen.)
• Set the electronic key to battery-saving mode to disable the smart key
system. (P. 137)
●If the electronic key is inside the vehicle and a door handle becomes wet
during a car wash, a message may be shown on the multi-information dis-
play and a buzzer will sound outside the vehicle. To turn off the alarm, lock
all the doors.

1393-2. Opening, closing and locking the doors
3
Operation of each component
●The lock sensor may not work properly if it comes into contact with ice,
snow, mud, etc. Clean the lock sensor and attempt to operate it again.
●A sudden approach to the effective range or door handle may prevent the
doors from being unlocked. In this case, return the door handle to the origi-
nal position and check that the doors unlock before pulling the door handle
again.
●If there is another electronic key in the detection area, it may take slightly
longer to unlock the doors after the door handle is gripped.
●Fingernails may scrape against the door during operation of the door han-
dle. Be careful not to injure fingernails or damage the surface of the door.
*: This setting can be customized at your Toyota dealer.
■When the vehicle is not driven for extended periods
●To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2
m) of the vehicle.
●The smart key system can be deactivated in advance. (P. 505)
●Setting the electronic key to battery-saving mode helps to reduce key bat-
tery depletion. (P. 137)
■To operate the system properly
Make sure to carry the electronic key when operating the system. Do not get
the electronic key too close to the vehicle when operating the system from the
outside of the vehicle.
Depending on the position and holding condition of the electronic key, the key
may not be detected correctly and the system may not operate properly. (The
alarm may go off accidentally, or the door lock prevention function may not
operate.)
■If the smart key system does not operate properly
●Locking and unlocking the doors and opening the trunk: Use the mechanical
key. (P. 463)
●Starting the engine: P. 464
■Customization
Some functions can be customized. (P. 505)
■If the smart key system has been deactivated in a customized setting
●Locking and unlocking the doors and opening the trunk:
Use the wireless remote control or mechanical key. (P. 125, 131, 463)
●Starting the engine and changing engine switch modes: P. 464
●Stopping the engine: P. 184

1864-2. Driving procedures
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or IGNI-
TION ON mode (with the engine is not running) for more than an hour with
the shift lever in P, the engine switch will automatically turn off. However, this
function cannot entirely prevent battery discharge. Do not leave the vehicle
with the engine switch in ACCESSORY or IGNITION ON mode for long peri-
ods of time when the engine is not running.
■Automatic engine shut off feature
●The vehicle is equipped with a feature that automatically shuts off the
engine when the shift lever is in P with the engine running for an extended
period.
●The engine will automatically shut off after approximately 1 hour if it has
been left running while the shift lever is in P.
●The timer for the automatic engine shut off feature will reset if the brake
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●After the vehicle is parked, if the door is locked with the door lock switch
(P. 127) from the inside or the mechanical key (P. 463) from the outside,
the automatic engine shut off feature will be disabled. The timer for the auto-
matic engine shut off feature will be re-enabled if the driver’s door is
opened.
■Electronic key battery depletion
P. 123
■Conditions affecting operation
P. 137
■Notes for the entry function
P. 138
■If the engine does not start
●The engine immobilizer system may not have been deactivated. (P. 77)
Contact your Toyota dealer.
●Check that the shift lever is securely set in P. The engine may not start if the
shift lever is displaced out of P.
■Steering lock
After turning the engine switch off and opening and closing the doors, the
steering wheel will be locked due to the steering lock function. Operating the
engine switch again automatically cancels the steering lock.
■When the steering lock cannot be released
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 engine switch while turning the steer-
ing wheel left and right.

1874-2. Driving procedures
4
Driving
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be sus-
pended if the engine is turned on and off repeatedly in a short period of time.
In this case, refrain from operating the engine. 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 electronic key battery is depleted
P. 415
■Operation of the engine switch
●If the switch is not pressed shortly and firmly, the engine switch mode may
not change or the engine may not start.
●If attempting to restart the engine immediately after turning the engine
switch off, the engine may not start in some cases. After turning the engine
switch off, wait a few seconds before restarting the engine.
■If the smart key system has been deactivated in a customized setting
P. 463
WARNING
■When starting the engine
Always start the engine while sitting in the driver’s seat. Do not depress the
accelerator pedal while starting the engine under any circumstances.
Doing so may cause an accident resulting in death or serious injury.
■Caution while driving
If engine failure occurs while the vehicle is moving, do not lock or open the
doors until the vehicle reaches a safe and complete stop. Activation of the
steering lock in this circumstance may lead to an accident, resulting in
death or serious injury.
■Stopping the engine in an emergency
●If you want to stop the engine in an emergency while driving the vehicle,
press and hold the engine switch for more than 2 seconds, or press it
briefly 3 times or more in succession. (P. 425)
However, do not touch the engine switch while driving except in an emer-
gency. Turning the engine off while driving will not cause loss of steering
or braking control, but the power assist to these systems will be lost. This
will make it more difficult to steer and brake, so you should pull over and
stop the vehicle as soon as it is safe to do so.
●If the engine switch is operated while the vehicle is running, a warning
message will be shown on the multi-information display and a buzzer
sounds.
●When restarting the engine after it was turned off while driving, shift the
shift lever to N and press the engine switch.