2021 TOYOTA AVALON HYBRID air filter

4356-3. Do-it-yourself maintenance
6
Maintenance and care
Remove the air intake vent
cover.
Pull the cover as shown in
the illustration to disengage
the 7 claws, starting from the
claw in the upper right cor-
ner.
Pull the cover toward the
front of the vehicle to remove
it.
Remove the air intake vent fil-
ter.
Disengage the 3 claws as
shown in the illustration.
Remove the filter from the
cover.
Remove the dust and clogs
from the filter using a vacuum
cleaner, etc.
Make sure to also remove the dust
and clogs from the inside of the air
intake vent cover.
3
1
2
4
1
2
5

4366-3. Do-it-yourself maintenance
Reinstall the filter to the cover.
Engage the filter to the 2
claws as shown in the illus-
tration.
Engage the 3 claws to install
the filter.
Make sure that the filter is not
crooked or deformed when install-
ing it.
Install the air intake vent cover.
Insert the tab of the cover as
shown in the illustration.
Push the cover to engage the
7 claws.
Using a Phillips screwdriver,
install the clip.
6
1
2
7
1
2
8

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)

4386-3. Do-it-yourself maintenance
NOTICE
■When cleaning the air intake vent
■To prevent damage to the vehicle
●Do not allow water or foreign matter to enter the air intake vent when the
cover is removed.
●Carefully handle the removed filter so that it will not be damaged.
If the filter is damaged, have it replaced with a new filter by your Toyota
dealer.
●Make sure to reinstall the filter and cover to their original positions after
cleaning.
●Do not install anything to the air intake vent other than the exclusive filter
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■If “Maintenance Required for Traction Battery Cooling Parts See
Owner’s Manual” is displayed on the multi-information display
If the vehicle is continuously driven with the warning message (indicating
that charging/discharging of the hybrid battery (traction battery) may
become limited) displayed, the hybrid battery (traction battery) may mal-
function. If a warning message is displayed, clean the air intake vent imme-
diately.
When cleaning the air intake vent, make
sure to only use a vacuum to suck out
dust and clogs. If a compressed air blow
gun, etc. is used to blow out dust and
clogs, the dust or clogs may be pushed
into the air intake vent, which may affect
the performance of the hybrid battery
(traction battery) and cause a malfunc-
tion.

4687-2. Steps to take in an emergency
■If “Hybrid System Overheated Output Power Reduced” is shown
This message may be displayed when driving under severe operating condi-
tions. (For example, when driving up a long steep hill.)
Handling method: P. 494
■If “Maintenance Required for Traction Battery Cooling Parts See Owner’s
Manual” is shown
The filter may be clogged, the air intake vent may be blocked or there may be
a gap in the duct.
●If the air intake vent or filter is dirty, refer to P. 434 for cleaning the air intake
vent and filter.
●If the message is being displayed and the air intake vent and filter are not
dirty, have the vehicle inspected at your Toyota dealer.
■If “Traction Battery Needs to be Protected Refrain From the Use of N
Position” is shown
This message may be displayed when the shift lever is in N.
As the hybrid battery (traction battery) cannot be charged when the shift lever
is in N, shift the shift lever to P when the vehicle is stopped.
■If “Traction Battery Needs to be Protected Shift into P to Restart” is
shown
This message is displayed when the hybrid battery (traction battery) charge
has become extremely low because the shift lever has been left in N for a cer-
tain amount of time.
When operating the vehicle, shift to P and restart the hybrid system.
■If “Shift to P Before Exiting Vehicle” is shown
Message is displayed when the driver’s door is opened without turning the
power switch off with the shift lever in any position other than P.
Shift the shift lever to P.
■If “Shift Is in N Release Accelerator Before Shifting” is shown
Message is displayed when the accelerator pedal has been depressed and
the shift lever is in N. Release the accelerator pedal and shift the shift lever to
D or R.
■If “Press Brake When Vehicle Is Stopped Hybrid System May Overheat”
is shown
Message is displayed when the accelerator pedal is depressed to maintain
the vehicle position when stopped on a upward slope, etc.
If this continues, the hybrid system may overheat.
Release the accelerator pedal and depress the brake pedal.

544Alphabetical index
Alphabetical index
A/C ............................................ 338
Air conditioning filter ............. 432
Automatic air
conditioning system ............ 338
ABS
(Anti-lock Brake System)...... 323
Warning light ......................... 456
Acoustic Vehicle Alerting
System ..................................... 76
AGC (Auto glide control) ........ 322
Air conditioning filter .............. 432
Air conditioning
system .................................... 338
Air conditioning filter ............. 432
Automatic air conditioning
system ................................ 338
S-FLOW mode ...................... 341
Airbags ....................................... 34
Airbag operating conditions .... 43
Airbag precautions for
your child .............................. 37
Correct driving posture ........... 26
Curtain shield airbag
operating conditions ............. 44
Curtain shield airbag
precautions ........................... 40
Front passenger occupant
classification system............. 48
General airbag precautions .... 37
Locations of airbags................ 34
Modification and disposal
of airbags.............................. 42
Side airbag operating
conditions ............................. 44
Side airbag precautions .......... 37
Side and curtain shield
airbags operating
conditions ............................. 44
Side and curtain shield
airbags precautions .............. 37
SRS airbags............................ 34
SRS warning light ................. 456Alarm .......................................... 88
Ambient lights ......................... 354
Anchor brackets ........................ 58
Antennas
(smart key system) ............... 148
Anti-lock Brake System
(ABS) ...................................... 323
Warning light......................... 456
Approach warning ................... 271
Armrest..................................... 375
Assist grips .............................. 375
Audio Plus
*
Audio/visual system*
Auto glide control (AGC) ........ 322
Automatic air
conditioning system ............. 338
Air conditioning filter ............. 432
Automatic High Beam ............. 222
Automatic light control
system.................................... 218
Auxiliary boxes ........................ 359
A