2013 TOYOTA AVALON HYBRID radiator

3556-3. Do-it-yourself maintenance
6
Maintenance and care
AVALON_HV_U (OM41451U)
Check the radiators 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 yo ur vehicle inspected by your Toyota dealer.
Radiators and condenser
CAUTION
■When the hybrid system is hot
Do not touch the radiators or condenser as they may be hot and cause seri-
ous injuries, such as burns.

4447-2. Steps to take in an emergency
AVALON_HV_U (OM41451U)
The engine coolant temperature gauge enters the red zone or a loss
of power is experienced. (For ex ample, the vehicle speed does not
increase.)
“Hybrid System Overheat/Stop the Vehicle in a Safe Place” is shown
on the multi-information display.
Steam comes out from under the hood.
■If the needle of the engine coolant temperature gauge enters
the red zone
Stop the vehicle in a safe place and turn off the air conditioning
system, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has
cooled down sufficiently,
inspect the hoses and radia-
tor core (radiator) for any
leaks.
Radiator
Cooling fan
If a large amount of coolant
leaks, immediately contact your
Toyota dealer.
If your vehicle overheats
The following may indicate that your vehicle is overheating:
Correction procedures
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4457-2. Steps to take in an emergency
7
When trouble arises
AVALON_HV_U (OM41451U)
The coolant level is satisfac-
tory if it is between the “F”
and “L” lines on the reservoir.
Reservoir
“F” line
“L” line
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air conditioning system on to
check that the radiator cooling fan operates and to check for
coolant leaks from th e 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 condi-
tioning system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fan is not operating:
Stop the hybrid system immediately and contact your Toyota
dealer.
If the fan is operating:
Have the vehicle inspected at the nearest Toyota dealer.
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4467-2. Steps to take in an emergency
AVALON_HV_U (OM41451U)■
If “Hybrid System Overheat/Stop the Vehicle in a Safe Place” is
shown on the multi-information display
Stop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has
cooled down, inspect the
hoses and radiator core
(radiator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant
leaks, immediately contact your
Toyota dealer
The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.
Reservoir
“FULL” line
“LOW” line
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and chec k for the multi-information dis-
play.
If the message does not disappear:
Stop the hybrid system and contact your Toyota dealer.
If the message is not displayed:
Have the vehicle in spected at the nearest Toyota dealer.
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4477-2. Steps to take in an emergency
7
When trouble arises
AVALON_HV_U (OM41451U)
CAUTION
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●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.
● Make sure that the “READY” indicator is off.
● Keep hands and clothing away from the fans, etc. while the hybrid system
is operating.
● On hybrid vehicles, the gasoline engine may automatically start, or the
cooling fan may suddenly operate even if the gasoline engine stops. Do
not touch or approach rotating parts such as the fan, which may lead to fin-
gers or clothing (especially a tie, a scarf or a muffler) getting caught,
resulting in serious injury.
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently.
Adding cool coolant to a hot hybrid system too quickly can cause damage to
the hybrid system.
■ 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 commercially available coolant additives.
●Do not loosen the radiator cap or the
coolant reservoir caps while the hybrid
system and radiator are hot.
High temperature steam or coolant
could spray out.

505Alphabetical index
AVALON_HV_U (OM41451U)
Radar cruise control (dynamic radar cruise control) ............. 221
Radiator .................................... 355
Rear personal lights ................ 285
Rear seat heaters..................... 305
Rear sunshade ......................... 308
Rear turn signal lights............. 194 Replacing light bulbs............. 398
Turn signal lever ................... 194
Wattage ................................ 460
Rear view mirror Inside rear view mirror .......... 152
Outside rear view mirrors...... 154
Rear window defoggers .......... 279
Refueling .................................. 212 Capacity ................................ 454
Fuel types ............................. 454
If the fuel filler door cannot be opened............... 215
Opening the fuel tank cap ..... 214
Regenerative braking ................ 71
Replacing Electronic key battery ........... 377
Fuses .................................... 379
Light bulbs ............................ 390
Tires ...................................... 423
Reporting safety defects for U.S. owners ...................... 486
Reset the maintenance
data ......................................... 337
Road accident cautions ............ 76 Safety Connect ........................ 319
Seat belts ................................... 30
Adjusting the seat belt ............ 31
Automatic Locking Retractor .............................. 32
Child restra int system
installation ............................ 61
Cleaning and maintaining the seat belt........................ 334
Emergency Locking
Retractor .............................. 32
How to wear your seat belt ..... 30
How your child should wear the seat belt.......................... 32
Pre-collision seat belts............ 31
Pregnant women, proper seat belt use ......................... 33
Reminder light and buzzer.... 415
Seat belt extender .................. 32
Seat belt pretensioners........... 31
SRS warning light ................. 413
Seat heaters ............................. 304
Seat position memory ............. 144
Seat ventilators........................ 304
Seating capacity ...................... 180
RS