Page 331 of 492

3316-2. Maintenance
6
Maintenance and care
AVALON_HV_U (01999-07002)
■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.
■ Resetting the message indicating maintenance is required
After the required maintenance is performed according to the maintenance
schedule, please reset the message.
To reset the message, follow the procedure described below:
Turn the power switch off with the trip meter A reading shown. ( P. 91)
While pressing the trip meter reset knob ( P. 91), turn the power switch to
ON mode
Continue to press and hold the knob until the trip meter displays “000000”.
■ 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 cove rage. 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.
■ Handling of the 12-volt battery
●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 Califor-
nia 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. 350)
1
2
3
Page 332 of 492
3326-2. Maintenance
AVALON_HV_U (01999-07002)
General maintenance
Listed below are the general maintenance items that should be
performed at the intervals specified in the “Owner’s Warranty
Information Booklet” or “Owner’s Manual Supplement/Sched-
uled Maintenance Guide”. It is recommended that any problem
you notice should be brought to the attention of your Toyota
dealer or qualified service shop for advice.
Engine compartment
ItemsCheck points
Brake fluidIs the brake fluid at the correct
level? ( P. 348)
Engine/power control unit coolant
Is the engine/power control unit
coolant at the correct level?
(P. 345)
Engine oilIs the engine oil at the correct level?
(P. 342)
Exhaust systemThere should not be any fumes or
strange sounds.
Radiator/condenser
The radiator and condenser should
be free from foreign objects.
(P. 347)
Washer fluidIs there sufficient washer fluid?
(P. 349)
Luggage compartment
ItemsCheck points
12-volt batteryCheck the connections. ( P. 350)
Page 337 of 492

337
6
Maintenance and care
AVALON_HV_U (01999-07002)
6-3. Do-it-yourself maintenance
Do-it-yourself ser vice precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsParts and tools
12-volt battery condi-
tion (P. 350)• Grease
• Conventional wrench
(for terminal clamp bolts)
Brake fluid level (P. 348)
• FMVSS No.116 DOT 3 or SAE J1703 brake
fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power control
unit coolant level (P. 345)
• “Toyota Super Long Life Coolant” or a similar
high quality ethylene glycol-based non-silicate,
non-amine, non-nitrite and non-borate coolant
with long-life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is pre-mixed
with 50% coolant and 50% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
(P. 342)• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( P. 374)• Fuse with same amperage rating as original
Light bulbs (P. 377)
• Bulb with same number and wattage rating as
original
• Phillips-head screwdriver
• Flathead screwdriver
• Wrench
Radiator and con-
denser ( P. 347)
Tire inflation pressure
( P. 364)• Tire pressure gauge
• Compressed air source
Washer fluid
(P. 349)
• Water or washer fluid containing antifreeze (for
winter use)
• Funnel (used only for adding water or washer fluid)
Page 338 of 492

3386-3. Do-it-yourself maintenance
AVALON_HV_U (01999-07002)
WARNING
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. 347)
■ 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 341 of 492
3416-3. Do-it-yourself maintenance
6
Maintenance and care
AVALON_HV_U (01999-07002)
■12-volt battery
P. 350
Engine compartment
Fuse boxes ( P. 374)
Engine oil filler cap ( P. 343)
Engine oil level dipstick ( P. 342)
Brake fluid reservoir ( P. 348)
Engine coolant radiator ( P. 347) Power control unit coolant
radiator
( P. 347)
Condenser ( P. 347)
Electric cooling fans
Engine coolant reservoir ( P. 345)
Washer fluid tank ( P. 349)
Power control unit coolant res-
ervoir ( P. 345)1
2
3
4
5
6
7
8
9
10
11
Page 342 of 492
3426-3. Do-it-yourself maintenance
AVALON_HV_U (01999-07002)
With the engine at operating temperature and turned off, check the oil
level on the dipstick.
■Checking the engine oilPark the vehicle on level ground. After warming up the engine
and turning off the hybrid system , wait more than 5 minutes for
the oil to drain back into the bottom of the engine.
Holding a rag under the end,
pull the dipstick out.
Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end,
pull the dipstick out and
check the oil level.
Low
Normal
Excessive
The shape of the dipstick may
differ depending on the type of
vehicle or engine.
Wipe the dipstick and reinsert it fully.
Engine oil
1
2
3
4
5
1
2
3
6
Page 343 of 492

3436-3. Do-it-yourself maintenance
6
Maintenance and care
AVALON_HV_U (01999-07002)■
Adding engine oil
If the oil level is below or near
the low level mark, add engine
oil of the same type as that
already in the engine.
Make sure to check the oil type and prepare the items needed
before adding oil.
Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.
■ Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following
situations, oil consumption may increase, and engine oil may need to be
refilled in between oil maintenance intervals.
●When the engine is new, for example directly after purchasing the vehicle or
after replacing the engine
● If low quality oil or oil of an inappropriate viscosity is used
● When driving at high engine speeds or with a heavy load, or when driving
while accelerating or decelerating frequently
● When leaving the engine idling for a long time, or when driving frequently
through heavy traffic
Engine oil selection P. 440
Oil quantity
(Low Full) 1.6 qt. (1.5 L, 1.3 Imp. qt.)
Items
Clean funnel
1
2
3
Page 344 of 492

3446-3. Do-it-yourself maintenance
AVALON_HV_U (01999-07002)
WARNING
■Used engine oil
●Used engine oil contains potentially harmful contaminants which may
cause skin disorders such as inflammation and skin cancer, so care
should be taken to avoid prolonged and repeated contact. To remove used
engine oil from your skin, wash thoroughly with soap and water.
● Dispose of used oil and filters only in a safe and acceptable manner. Do
not dispose of used oil and filters in household trash, in sewers or onto the
ground.
Call your Toyota dealer, service station or auto parts store for information
concerning recycling or disposal.
● Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■ When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
● Avoid overfilling, or the engine could be damaged.
● Check the oil level on the dipstick every time you refill the vehicle.
● Be sure the engine oil filler cap is properly tightened.