radiator cap TOYOTA AVALON 2021 Owners Manual (in English)

3836-3. Do-it-yourself maintenance
6
Maintenance and care
2.5 L 4-cylinder (A25A-FKS) engine
Engine compartment
Fuse boxes (if equipped)
(P. 418)
Engine oil filler cap (P. 386)
Engine oil level dipstick
(P. 385)
Brake fluid reservoir
(P. 390)
Battery (P. 391)Radiator (P. 389)
Electric cooling fan
Condenser (P. 389)
Engine coolant reservoir
(P. 388)
Washer fluid tank (P. 393)1
2
3
4
5
6
7
8
9
10

3846-3. Do-it-yourself maintenance
3.5 L V6 (2GR-FKS) engine
Fuse boxes (if equipped)
(P. 418)
Engine oil filler cap (P. 386)
Engine oil level dipstick
(P. 385)
Brake fluid reservoir
(P. 390)
Battery (P. 391)Radiator (P. 389)
Electric cooling fan
Condenser (P. 389)
Engine coolant reservoir
(P. 388)
Washer fluid tank (P. 393)1
2
3
4
5
6
7
8
9
10

3886-3. Do-it-yourself maintenance
The coolant level is satisfactory if it is between the “F” and “L” lines on
the reservoir when the engine is cold.
Reservoir cap
“F” line
“L” line
If the level is on or below the “L”
line, add coolant up to the “F” line.
(P. 471)
■Coolant selection
Only use “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.
U.S.A.:
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -31F [-35C])
Canada:
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deion-
ized water. (Minimum temperature: -44F [-42C])
For more details about engine coolant, contact your Toyota dealer.
■If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock
and water pump.
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling system.
Engine coolant
1
2
3

3896-3. Do-it-yourself maintenance
6
Maintenance and care
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have your vehicle inspected by your Toyota dealer.
WARNING
■When the engine is hot
Do not remove the engine coolant reservoir cap or the radiator cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.
Radiator and condenser
WARNING
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.

4727-2. Steps to take in an emergency
The coolant level is satisfactory if it is between the “F” and “L” lines
on the reservoir.
Reservoir
“F” line
“L” line
Radiator cap
Add coolant if necessary.
Water can be used in an emergency if coolant is unavailable.
4
1
2
3
4
2.5 L 4-cylinder (A25A-FKS)
engine3.5 L V6 (2GR-FKS) engine
5
2.5 L 4-cylinder (A25A-FKS)
engine3.5 L V6 (2GR-FKS) engine

4737-2. Steps to take in an emergency
7
When trouble arises
Start the engine and turn the air conditioning system on to check
that the radiator cooling fan operates and to check for coolant leaks
from the radiator or hoses.
The fan operates when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fan is operating by checking the fan
sound and air flow. If it is difficult to check these, turn the air conditioning
system on and off repeatedly. (The fan may not operate in freezing tem-
peratures.)
If the fan is not operating:
Stop the engine immediately and contact your Toyota dealer.
If the fan is operating:
Have the vehicle inspected at the nearest Toyota dealer.
WARNING
■To prevent an accident or injury when inspecting under the hood of
your vehicle
Observe the following precautions.
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●If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.
●Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fan and belts. Failure to do so may cause the hands or clothing to be
caught, resulting in serious injury.
●Do not loosen the radiator cap and the coolant reservoir cap while the
engine and radiator are hot.
High temperature steam or coolant could spray out.
NOTICE
■When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too
quickly can cause damage to the engine.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).
●Do not use any coolant additives.
6
7

542Alphabetical index
Radar cruise control
(dynamic radar cruise
control with full-speed
range) ..................................... 247
Radiator .................................... 389
Rear Camera Detection
Function ................................. 272
Rear Cross Traffic Alert .......... 267
Rear Cross Traffic
Auto Brake ............................. 286
Rear passengers’ seat belt
reminder light ........................ 438
Rear personal lights ................ 333
Rear seat heaters..................... 329
Rear seats
Folding down ........................ 144
Rear side marker lights
Light switch ........................... 202
Replacing light bulbs............. 421
Rear turn signal lights
Replacing light bulbs............. 421
Turn signal lever ................... 195
Rear view mirror
Inside rear view mirror .......... 155
Outside rear view mirrors...... 157
Rear window defogger ............ 324
Refueling .................................. 214
Capacity ................................ 480
Fuel types ............................. 480
If the fuel filler door
cannot be opened............... 217
Opening the fuel tank cap ..... 216
Replacing
Electronic key battery ........... 415
Fuses .................................... 418
Light bulbs ............................ 421
Tires ...................................... 449Reporting safety defects
for U.S. owners...................... 516
Resetting the message
indicating maintenance
is required.............................. 373
Safety Connect .......................... 71
Seat belt reminder light .......... 438
Seat belts ................................... 30
Adjusting the seat belt ............ 31
Automatic Locking
Retractor .............................. 32
Child restraint system
installation ............................ 63
Cleaning and maintaining
the seat belt........................ 370
Emergency Locking
Retractor .............................. 32
How to wear your seat belt ..... 30
How your child should wear
the seat belt.......................... 32
Pregnant women, proper
seat belt use ......................... 33
Reminder light and buzzer.... 438
Seat belt extender .................. 32
Seat belt instructions for
Canadian owners ............... 517
Seat belt pretensioners........... 31
SRS warning light ................. 435
Seat heaters ............................. 329
Seat ventilators........................ 329
Seating capacity ...................... 181
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