key TOYOTA AVALON 2021 (in English) Service Manual

3545-4. Other interior features
NOTICE
■Conditions in which the wireless charger may not operate correctly
In the following situations, the wireless charger may not operate correctly:
●When a portable device is fully charged
●When there is a foreign object between the charging area and portable
device
●When a portable device becomes hot while charging
●When a portable device is placed on the wireless area with its charging
surface facing up
●When a portable device is not centered on the charging area
●When the vehicle is near a TV tower, electric power plant, gas station,
radio station, large display, airport or other facility that generates strong
radio waves or electrical noise
●When the portable device is in contact with, or is covered by any of the fol-
lowing metallic objects:
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
• Coins
• Metal hand warmers
• Media such as CDs and DVDs
●When wireless keys (that emit radio waves) other than those of your vehi-
cle are being used nearby.
If in situations other than above the wireless charger does not operate prop-
erly or the operation indicator light is blinking, the wireless charger may be
malfunctioning. Contact your Toyota dealer.
■To prevent failure or damage to data
●Do not bring magnetic cards, such as a credit card, or magnetic recording
media, close to the wireless charger while charging. Otherwise, data may
be erased due to the influence of magnetism.
Additionally, do not bring precision instruments such as wrist watches,
close to the wireless charger, as such objects may malfunction.
●Do not leave portable devices in the cabin. The temperature inside the
cabin may become high when parked in the sun, and cause damage to the
device.
■To prevent battery discharge
Do not use the wireless charger for a long period of time with the engine
stopped.

365
6Maintenance and care
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......................... 421

3676-1. Maintenance and care
6
Maintenance and care
■When using a car wash
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range, the door may lock and unlock repeatedly. In that case, follow the fol-
lowing correction procedures to wash the vehicle:
●Place the key in a position 6 ft. (2 m) or more separate from the vehicle
while the vehicle is being washed. (Take care to ensure that the key is not
stolen.)
●Set the electronic key to battery-saving mode to disable the smart key sys-
tem. (P. 137)
■Wheels and wheel ornaments
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●Wash detergent off with water immediately after use.
●To protect the paint from damage, make sure to observe the following pre-
cautions.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such as after driv-
ing or parking in hot weather
■Bumpers
Do not scrub with abrasive cleaners.
■Plated portions
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●Use a soft cloth dampened with an approximately 5% solution of neutral
detergent and water to clean the dirt off.
●Wipe the surface with a dry, soft cloth to remove any remaining moisture.
●To remove oily deposits, use alcohol wet wipes or a similar product.
WARNING
■When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may
cause the electrical components, etc. to catch fire.
■Precautions regarding the exhaust pipes
Exhaust gasses cause the exhaust pipes to become quite hot.
When washing the vehicle, be careful not to touch the pipes until it has
cooled sufficiently, as touching a hot exhaust pipes can cause burns.
■Precaution regarding the rear bumper with Blind Spot Monitor
If the paint of the rear bumper is chipped or scratched, the system may mal-
function. If this occurs, avoid using the system and consult your Toyota
dealer.

3916-3. Do-it-yourself maintenance
6
Maintenance and care
Check the battery as follows.
■Battery exterior
Make sure that the battery terminals are not corroded and that
there are no loose connections, cracks, or loose clamps.
Terminals
Hold-down clamp
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following before recharging:
●If recharging with the battery installed on the vehicle, be sure to disconnect
the ground cable.
●Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the battery.
■After recharging/reconnecting the battery
●Unlocking the doors using the smart key system may not be possible imme-
diately after reconnecting the battery. If this happens, use the wireless
remote control or the mechanical key to lock/unlock the doors.
●Start the engine with the engine switch in ACCESSORY mode. The engine
may not start with the engine switch turned off. However, the engine will
operate normally from the second attempt.
●The engine switch mode is recorded by the vehicle. If the battery is recon-
nected, the vehicle will return the engine switch mode to the status it was in
before the battery was disconnected. Make sure to turn off the engine
before disconnecting the battery. Take extra care when connecting the bat-
tery if the engine switch mode prior to discharge is unknown.
If the system will not start even after multiple attempts, contact your Toyota
dealer.
Battery
1
2

4156-3. Do-it-yourself maintenance
6
Maintenance and care
●Flathead screwdriver
●Small flathead screwdriver
●Lithium battery CR2032
Release the lock and remove
the mechanical key.
Remove the key cover.
To prevent damage to the key,
cover the tip of the flathead screw-
driver with a rag.
Remove the depleted battery
using a small flathead screw-
driver.
When removing the cover, the
electronic key module may stick to
the cover and the battery may not
be visible. In this case, remove the
electronic key module in order to
remove the battery.
Insert a new battery with the “+” terminal facing up.
When installing the key cover and mechanical key, install by con-
ducting and with the directions reversed.
Electronic key batter y
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
1
2
3
4
21

4166-3. Do-it-yourself maintenance
Operate the or switch and check that the doors can
be locked/unlocked.
■When replacing the key battery
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44004f004f0003005300440055005700560011[
■Use a CR2032 lithium battery
●Batteries can be purchased at your Toyota dealer, local electrical appliance
shops or camera stores.
●Replace only with the same or equivalent type recommended by the manu-
facturer.
●Dispose of used batteries according to local laws.
■If the key battery is depleted
The following symptoms may occur:
●The smart key system and wireless remote control will not function properly.
●The operational range will be reduced.
WARNING
■Battery precautions
Observe the following precautions.
Failure to do so may result in death or serious injury.
●Do not swallow the battery. Doing so may cause chemical burns.
●A coin battery or button battery is used in the electronic key. If a battery is
swallowed, it may cause severe chemical burns in as little as 2 hours and
may result in death or serious injury.
●Keep away new and removed batteries from children.
●If the cover cannot be firmly closed, stop using the electronic key and stow
the key in the place where children cannot reach, and then contact your
Toyota dealer.
●If you accidentally swallow a battery or put a battery into a part of your
body, get emergency medical attention immediately.
■To prevent battery explosion or leakage of flammable liquid or gas
●Replace the battery with a new battery of the same type. If a wrong type of
battery is used, it may explode.
●Do not expose batteries to extremely low pressure due to high altitude or
extremely high temperatures.
●Do not burn, break or cut a battery.
5

423
7When trouble arises
7-1. 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

4467-2. Steps to take in an emergency
■Warning messages
The warning messages explained below may differ from the actual messages
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4c0049004c004600440057004c0052005100560011[
■System warning lights
The master warning light does not come on or flash in the following cases.
Instead, a separate system warning light will come on along with a message
shown on the multi-information display.
●Malfunction in the ABS
The ABS warning light comes on. (P. 435)
●Malfunction in the tire pressure warning system
The tire pressure warning light comes on. (P. 438)
●Remaining fuel level is low
The low fuel level warning light comes on. (P. 437)
■If a message instructing to refer to the Owner’s Manual is displayed
●If the following messages are shown, there may be a malfunction.
Immediately stop the vehicle in a safe place and contact your Toyota dealer.
Continuing to drive the vehicle may be dangerous.
• “Low Braking Power Stop in a Safe Place See Owner’s Manual”
• “Oil Pressure Low Stop in a Safe Place See Owner’s Manual”
• “Charging System Malfunction Stop in a Safe Place See Owner’s Man-
ual”
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500044004f00490058005100460057004c005200510011[
Immediately have the vehicle inspected by your Toyota dealer.
• “Smart Key System Malfunction See Owner’s Manual”
●If “Engine Coolant Temp High Stop in a Safe Place See Owner’s Manual” is
displayed, follow the instructions accordingly. (P. 471)
■If “Shift to P Before Exiting Vehicle” is shown
Message is displayed when the driver’s door is opened without turning the
engine switch off with the shift lever in any position other than P.
Shift the shift lever to P.
■If “Auto Power Off to Conserve Battery” is displayed
Power was turned off due to the automatic power off function.
Next time when starting the engine, increase the engine speed slightly and
maintain that level for approximately 5 minutes to recharge the battery.

4477-2. Steps to take in an emergency
7
When trouble arises
■If “A New Key has been Registered Contact Your Dealer for Details” is
displayed
This message will be displayed each time the driver’s door is opened when
the doors are unlocked from the outside for approximately one week after a
new electronic key has been registered.
If this message is displayed but you have not had a new electronic key regis-
tered, ask your Toyota dealer to check if an unknown electronic key (other
than those in your possession) has been registered.
■When “Headlight System Malfunction Visit Your Dealer” is displayed
The following systems may be malfunctioning. Have the vehicle inspected by
your Toyota dealer immediately.
●The LED headlight system
●Automatic High Beam
■If a message that indicates the malfunction of front camera is displayed
The following systems may be suspended until the problem shown in the
message is resolved.
●PCS (Pre-Collision System)
●LDA (Lane Departure Alert with steering control)
●Dynamic radar cruise control with full-speed range
●Automatic High Beam
■If “Maintenance Required Soon” is displayed
Indicates that all maintenance according to the driven distance on the mainte-
nance schedule
* should be performed soon.
Comes on approximately 4500 miles (7200 km) after the message has been
reset.
If necessary, perform maintenance. Please reset the message after the main-
tenance is performed. (P. 373)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual
Supplement” for the maintenance interval applicable to your vehicle.
■If “Maintenance Required Visit Your Dealer” is displayed
Indicates that all maintenance is required to correspond to the driven distance
on the maintenance schedule
*.
Comes on approximately 5000 miles (8000 km) after the message has been
reset.
(The indicator will not work properly unless the message has been reset.)
Perform the necessary maintenance. Please reset the message after the
maintenance is performed. (P. 373)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual
Supplement” for the maintenance interval applicable to your vehicle.

4617-2. Steps to take in an emergency
7
When trouble arises
One of the following may be the cause of the problem:
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●The engine may be flooded.
Try to restart the engine again following correct starting procedures.
(P. 184)
●There may be a malfunction in the engine immobilizer system.
(P. 77)
One of the following may be the cause of the problem:
●The battery may be discharged. (P. 466)
●The battery terminal connections may be loose or corroded.
The engine starting system may be malfunctioning due to an electrical
problem such as electronic key battery depletion or a blown fuse.
However, an interim measure is available to start the engine.
(P. 462)
If the engine will not star t
If the engine will not start even though correct starting proce-
dures are being followed (P. 184), consider each of the follow-
ing points:
The engine will not start even though the starter motor operates
normally.
The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low
volume.
The starter motor does not turn over