Page 276 of 512

2765-1. Using the air conditioning system and defogger
AVALON_HV_U (OM41451U)■
Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high.
Turning on will dehumidify the air from the outlets and defog the wind-
shield effectively.
● If you turn off, the windows may fog up more easily.
● The windows may fog up if the recirculated air mode is used.
■ Windshield fog detection function
When automatic mode is set, the humidity sensor (P. 278) detects fog on
the windshield and controls the air conditioning system to prevent fog.
■ Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set the out-
side/recirculated air mode to the recirculated air mode. This is effective in
preventing outside air from entering the vehicle interior. During cooling oper-
ation, setting the recirculated air mode will also cool the vehicle interior
effectively.
● Outside/recirculated air mode may automatically switch depending on the
temperature setting, outside temperature, pressure, engine coolant temper-
ature or inside temperature.
■ When the outside temperature exceeds 75°F (24°C) and the air condition-
ing system is on
●In order to reduce the air conditioning power consumption, the air condition-
ing system may switch to recirculated air mode automatically. This may also
reduce fuel consumption.
● Recirculated air mode is selected as a default mode when the power switch
is turned to ON mode.
● It is possible to switch to outside air mode at any time by pressing
.
■When the outside temperature falls to nearly 32 F (0 C)
The dehumidification function may not operate even when is touched.
■ Air conditioning odors
●During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning system. This may then cause odor to
be emitted from the vents.
● To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time immediately after the air conditioning system is started in automatic
mode.
Page 277 of 512

2775-1. Using the air conditioning system and defogger
5
Interior features
AVALON_HV_U (OM41451U)■
Air conditioning filter
P. 375
■ Handling of the air conditioning panel
The operating section of the air conditioning panel uses capacitive touch sen-
sors. In the following cases, incorrect operation or non-response may oc\
cur.
●If the operating section is dirty or has liquid attached to it, incorrect operation
or non-response may occur.
● If the operating section receives electromagnetic waves, incorrect operation
or non-response may occur.
● If wearing gloves during operation, non-response may occur.
● If fingernails are used to operate the system, non-response may occur.
● If a touch pen is used to operate the system, non-response may occur.
● If the palm of your hand touches the operating section during operation,
incorrect operation may occur.
● If the palm of your hand touches the operating section, incorrect operation
may occur.
● If operations are performed quickly, non-response may occur.
■ Customization
Settings (e.g. air conditioning setting) can be changed.
(Customizable features P. 477)
CAUTION
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The
difference between the temperature of the outside air and that of the wind-
shield can cause the outer surface of the windshield to fog up, blocking your
vision.
Page 278 of 512
2785-1. Using the air conditioning system and defogger
AVALON_HV_U (OM41451U)
NOTICE
■Humidity sensor
■ To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the
hybrid system is off.
In order to detect fog on the windshield, a
sensor which monitors the temperature
of the windshield, the surround humidity,
etc. is installed.
Follow these points to avoid damaging
the sensor:
● Do not disassemble the sensor
● Do not spray the glass cleaner on the
sensor or subject it to strong impacts
● Do not stick anything on the sensor
Page 279 of 512
2795-1. Using the air conditioning system and defogger
5
Interior features
AVALON_HV_U (OM41451U)
On/off
The defoggers will automatically
turn off after 15 minutes. The oper-
ation time changes according to
the ambient temperature and vehi-
cle speed.
■Operating conditions
The power switch must be in the ON mode.
Rear window and outside rear view mirror
defoggers
These features are used to defog the rear window, and to
remove raindrops, dew and frost from the outside rear view mir-
rors.
CAUTION
■ When the outside rear view mirror defoggers are on
Do not touch the rear view mirror surfaces, as they can become very hot
and burn you.
NOTICE
■ To prevent 12-volt battery discharge
Turn the defoggers off when the hybrid system is off.
Page 322 of 512

3225-5. Other interior features
AVALON_HV_U (OM41451U)
When the power switch is turned to ON mode, the red indicator light
comes on for 2 seconds then turns off. Afterward, the green indicator
light comes on, indicating that the service is active.
The following indicator light patterns indicate specific system usage
conditions:
● Green indicator light on = Active service
● Green indicator light flashing = Sa fety Connect call in process
● Red indicator light (except at vehi cle start-up) = System malfunction
(contact your Toyota dealer)
● No indicator light (off) = Safety Connect service not active
■Automatic Collision Notification
In case of either airbag deployment or severe rear-end collision, the
system is designed to automatical ly call the response center. The
responding agent receives the vehicle’s location and attempts to
speak with the vehicle occupants to assess the level of emergency.
If the occupants are unable to communicate, the agent automati-
cally treats the call as an emergency, contacts the nearest emer-
gency services provider to descri be the situation, and requests that
assistance be sent to the location.
Safety Connect LE D light Indicators
Safety Connect services
Page 329 of 512
329
6Maintenance and care
AVALON_HV_U (OM41451U)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 330
Cleaning and protecting the vehicle interior ........... 333
6-2. Maintenance Maintenance requirements ................... 336
General maintenance ........ 338
Emission inspection and maintenance (I/M)
programs ......................... 342 6-3. Do-it-yourself
maintenance
Do-it-yourself service precautions ..................... 343
Hood ................................. 346
Positioning a floor jack ...... 347
Engine compartment ......... 349
12-volt battery ................... 358
Tires .................................. 362
Tire inflation pressure ....... 369
Wheels .............................. 372
Air conditioning filter.......... 375
Electronic key battery........ 377
Checking and replacing fuses ............................... 379
Light bulbs......................... 390
Page 345 of 512

3456-3. Do-it-yourself maintenance
6
Maintenance and care
AVALON_HV_U (OM41451U)
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.
■When working on the engine compartment
● Make sure that the “READY” indicator is off.
● Keep hands, clothing and tools away from the moving fan and engine
drive belt.
● Be careful not to touch the engine, power control unit, radiator, exhaust
manifold, etc. right after driving as they may be hot. Oil and other fluids
may also be hot.
● Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
are flammable.
■ When working near the electric cooling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, t he electric cooling fans may automati-
cally start to run if the air conditioning is on and/or the coolant temperature
is high. ( P. 355)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air.
Page 368 of 512

3686-3. Do-it-yourself maintenance
AVALON_HV_U (OM41451U)
NOTICE
■Repairing or replacing tires, wheels, tire pressure warning valves,
transmitters and tire valve caps
●When removing or fitting the wheels, tires or the tire pressure warning
valves and transmitters, contact your Toyota dealer as the tire pres-
sure warning valves and transmitters may be damaged if not handled
correctly.
●When replacing tire valve caps, do not use tire valve caps other than
those specified. The cap may become stuck.
■To avoid damage to the tire pressure warning valves and transmit-
ters
When a tire is repaired with liquid sealants, the tire pressure warning
valve and transmitter may not operate properly. If a liquid sealant is
used, contact your Toyota dealer or other qualified service shop as soon
as possible. Make sure to replace the tire pressure warning valve and
transmitter when replacing the tire. ( P. 363)
■Driving on rough roads
Take particular care when driving on roads with loose surfaces or pot-
holes.These conditions may cause losses in tire inflation pressure,
reducing the cushioning ability of the tires. In addition, driving on rough
roads may cause damage to the tires themselves, as well as the vehi-
cle’s wheels and body.
■If tire inflation pressure of e ach tire becomes low while driving
Do not continue driving, or your tires and/or wheels may be ruined.