2021 TOYOTA AVALON HYBRID maintenance schedule

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)

3926-2. Maintenance
General maintenance should be performed on a daily basis. This can
be done by yourself or by a Toyota dealer.
Scheduled maintenance should be performed at specified intervals
according to the maintenance schedule.
For details about maintenance items and schedules, refer to the “Sched-
uled Maintenance Guide” or “Owner’s Manual Supplement”.
You can perform some maintenance procedures by yourself.
Please be aware that do-it-yourself maintenance may affect warranty
coverage.
The use of Toyota Repair Manuals is recommended.
For details about warranty coverage, refer to the separate “Owner’s War-
ranty Information Booklet” or “Owner’s Manual Supplement”.
Maintenance requirements
To ensure safe and economical driving, day-to-day care and reg-
ular maintenance are essential. It is the owner’s responsibility to
perform regular checks. Toyota recommends the following main-
tenance:
General maintenance
Scheduled maintenance
Do-it-yourself maintenance

3936-2. Maintenance
6
Maintenance and care
■Repair and replacement
It is recommended that genuine Toyota parts be used for repairs to ensure
performance of each system. If non-Toyota parts are used in replacement or if
a repair shop other than a Toyota dealer performs repairs, confirm the war-
ranty coverage.
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After the required maintenance is performed according to the maintenance
schedule, please reset the message.
To reset the message, perform the following procedure:
Select on the multi-information display using the meter control switches
on the steering wheel. (P. 111)
Select and then press and hold .
Select “Scheduled Maintenance” and then press .
Select “Yes” and then press .
A message will be displayed on the multi-information display when the
reset procedure has been completed.
■Allow inspection and repairs to be performed by a Toyota dealer
●Toyota technicians are well-trained specialists and are kept up to date with
the latest service information. They are well informed about the operations
of all systems on your vehicle.
●Keep a copy of the repair order. It proves that the maintenance that has
been performed is under warranty coverage. If any problem should arise
while your vehicle is under warranty, your Toyota dealer will promptly take
care of it.
WARNING
■If your vehicle is not properly maintained
Improper maintenance could result in serious damage to the vehicle and
possible death or serious injury.
■Important health and safety information
●Engine exhaust, some of its constituents, and a wide variety of automobile
components contain or emit chemicals known to the State of California to
cause cancer and birth defects and other reproductive harm. Work in a
well ventilated area.
●Oils, fuels and fluids contained in vehicles as well as waste produced by
component wear contain or emit chemicals known to the State of
California to cause cancer and birth defects or other reproductive harm.
Avoid exposure and wash any affected area immediately.
●12-volt battery posts, terminals and related accessories contain lead and
lead compounds which are known to cause brain damage. Wash your
hands after handling. (P. 411)
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3966-2. Maintenance
Seat belts
• Do the seat belts operate
smoothly?
• The seat belts should not be dam-
aged.
Seats• Do the seat controls operate prop-
erly?
Steering wheel
• Does the steering wheel rotate
smoothly?
• Does the steering wheel have the
correct amount of free play?
• There should not be any strange
sounds coming from the steering
wheel.
Vehicle exterior
ItemsCheck points
ItemsCheck points
Doors/trunk• Do the doors/trunk operate
smoothly?
Engine hood• Does the engine hood lock system
work properly?
Fluid leaks
• There should not be any signs of
fluid leakage after the vehicle has
been parked.
Tires
• Is the tire inflation pressure cor-
rect?
• The tires should not be dam-
aged or excessively worn.
• Have the tires been rotated
according to the maintenance
schedule?
• The wheel nuts should not be
loose.
Windshield wipers
• The wiper blades should not show
any signs of cracking, splitting,
wear, contamination or deforma-
tion.
• The wiper blades should clear the
windshield without streaking or
skipping.

4336-3. Do-it-yourself maintenance
6
Maintenance and care
Remove the air conditioning fil-
ter from the filter case and
replace it with a new one.
The “UP” marks shown on the fil-
ter and the filter case should be
pointing up.
■Checking interval
Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, early replacement
may be required. (For scheduled maintenance information, please refer to the
“Schedule maintenance guide” or “Owner’s Manual Supplement”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
■Air conditioning filter with deodorizing function
When fragrances are placed in your vehicle, the deodorizing effect may
become significantly weakened in a short period.
When an air conditioning odor comes out continuously, replace the air condi-
tioning filter.
5
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.
■To prevent damage to the filter cover
When moving the filter cover in the direc-
tion of arrow to release the fitting, pay
attention not to apply excessive force to
the claws. Otherwise, the claws may be
damaged.

4376-3. Do-it-yourself maintenance
6
Maintenance and care
■Scheduled maintenance of the air intake vent is necessary when
In some situations such as when the vehicle is used frequently or in heavy
traffic or dusty areas, the air intake vent may need to be cleaned more regu-
larly. For details, refer to “Schedule maintenance guide” or “Owner’s Manual
Supplement”.
■Cleaning the air intake vent
●Dust in the air intake vent may interfere with the cooling of the hybrid battery
(traction battery). If charging/discharging of the hybrid battery (traction bat-
tery) becomes limited, the distance that the vehicle can be driven using the
electric motor (traction motor) may be reduced and the fuel economy may
be reduced.
●Improper handling of the air intake vent cover and filter may result in dam-
age to them. If you have any concerns about cleaning the filter, contact your
Toyota dealer.
■If “Maintenance Required for Traction Battery Cooling Parts See Owner’s
Manual” is displayed on the multi-information display
●If this warning message is displayed on the multi-information display,
remove the air intake vent cover and clean the filter. (P. 434)
●After cleaning the air intake vent, start the hybrid system and check that the
warning message is no longer displayed.
It may take approximately 20 minutes after the hybrid system is started until
the warning message disappears. If the warning message does not disap-
pear, have the vehicle inspected by your Toyota dealer.
WARNING
■When cleaning the air intake vent
●Do not use water or other liquids to clean the air intake vent. If water is
applied to the hybrid battery (traction battery) or other components, a mal-
function or fire may occur.
●Before cleaning the air intake vent, make sure to turn the power switch off
to stop the hybrid system.
■
When removing the air intake vent cover
Do not touch the service plug located near the air intake vent. (P. 82)

4697-2. Steps to take in an emergency
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When trouble arises
■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 hybrid system, operate the hybrid system for
approximately 5 minutes to recharge the 12-volt battery.
■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. 393)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual
Supplement” for the maintenance interval applicable to your vehicle.

4707-2. Steps to take in an emergency
■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. 393)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual
Supplement” for the maintenance interval applicable to your vehicle.
■If “Engine Oil Level Low Add or Replace” is displayed
The engine oil level may be low. Check the level of the engine oil, and add
engine oil if necessary. This message may be displayed if the vehicle is
stopped on a slope. Move the vehicle to a level surface and check if the mes-
sage disappears.
■Warning buzzer
P. 461
NOTICE
■If “High Power Consumption Power to Climate Temporarily Limited” is
frequently shown
There is a possible malfunction relating to the charging system or the 12-
volt battery may be deteriorating. Have the vehicle inspected by your Toyota
dealer.
■If “Maintenance Required For Traction Battery At Your Dealer” is
shown
The hybrid battery (traction battery) is scheduled to be inspected or
replaced. Have the vehicle inspected by your Toyota dealer immediately.
●Continuing to drive the vehicle without having the hybrid battery (traction
battery) inspected will cause the hybrid system not to start.
●If the hybrid system does not start, contact your Toyota dealer immedi-
ately.