2016 TOYOTA AVALON HYBRID engine overheat

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AVALON_HV_U (01999-07002)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 324
Cleaning and protecting the vehicle interior ........... 327
6-2. Maintenance Maintenance requirements ................... 330
General maintenance ........ 332
Emission inspection and maintenance (I/M)
programs ......................... 336
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 337
Hood.................................. 339
Positioning a floor jack ...... 340
Engine compartment ......... 341
12-volt battery ................... 350
Tires .................................. 354
Tire inflation pressure........ 364
Wheels .............................. 367
Air conditioning filter .......... 370
Electronic key battery ........ 372
Checking and replacing fuses ............................... 374
Light bulbs ......................... 377 7-1. Essential information
Emergency flashers ........... 390
If your vehicle has to be stopped in an
emergency....................... 391
7-2. Steps to take in an emergency
If your vehicle needs to be towed .......................... 392
If you think something is wrong............................... 395
If a warning light turns on or a warning buzzer
sounds ............................. 396
If a warning message is displayed ......................... 405
If you have a flat tire .......... 406
If the hybrid system will not start ........................... 418
If the shift lever cannot be shifted from P .................. 420
If the electronic key does not operate properly ........ 421
If the 12-volt battery is discharged ....................... 423
If your vehicle overheats......................... 428
If the vehicle becomes stuck ................................ 432
6Maintenance and care7When trouble arises

17Pictorial index
AVALON_HV_U (01999-07002)Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 192
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 268
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . P. 325
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 197
Refueling method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 197
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 438
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 354
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 443
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 268
Checking/rotation/tire pressure warning system . . . . . . . . . P. 354
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 406
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 339
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 339
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 439
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 428
Headlights/side marker lights/
daytime running lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 185
Front turn signal/parking lights . . . . . . . . . . . . . . . . . . . . . . P. 183
Stop/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 185
Rear turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 183
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 180
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 185
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Light bulbs of the exterior lights for driving
(Replacing method: P. 377, Wattages: P. 444)
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932. Instrument cluster
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Instrument cluster
AVALON_HV_U (01999-07002)■
Customization
The instrument panel light auto dimmer control can be changed.
(Customizable feature: P. 461)
NOTICE
■To prevent damage to the engine and its components
●When indicating the tachometer (Using the S mode driving): Do not let the
indicator of the tachometer enter the red zone, which indicates the maxi-
mum engine speed. ( P. 181)
● The engine may be overheating if the engine coolant temperature gauge is
in the red zone (H). In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. (P. 428)

1594-1. Before driving
4
Driving
AVALON_HV_U (01999-07002)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When driving the vehicle
●During normal driving, do not turn off the hybrid system. Turning the hybrid
system off while driving will not cause loss of steering or braking control,
however, power assist to the steering will be lost. This will make it more
difficult to steer smoothly, so you should pull over and stop the vehicle as
soon as it is safe to do so.
In the event of an emergency, such as if it becomes impossible to stop the
vehicle in the normal way: P. 391
● Use engine braking (downshift) to maintain a safe speed when driving
down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. ( P. 180)
● Do not adjust the positions of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control.
● Always check that all passengers’ arms, heads or other parts of their body
are not outside the vehicle.
● Do not drive in excess of the speed limit. Even if the legal speed limit per-
mits it, do not drive over 85 mph ( 140 km/h) unless your vehicle has high-
speed capability tires. Driving over 85 mph (140 km/h) may result in tire
failure, loss of control and possible injury. Be sure to consult a tire dealer
to determine whether the tires on y our vehicle are high-speed capability
tires or not before driving at such speeds.

1614-1. Before driving
4
Driving
AVALON_HV_U (01999-07002)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■If you hear a squealing or scraping noise (brake pad wear limit indica-
tors)
Have the brake pads checked and replaced by your Toyota dealer as soon
as possible.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle when the wear limits of the brake pads
and/or those of the brake discs are exceeded.
■ When the vehicle is stopped
●Do not depress the accelerator pedal unnecessarily.
If the shift lever is in any position other than P or N, the vehicle may accel-
erate suddenly and unexpectedly, causing an accident.
● In order to prevent accidents due to the vehicle rolling away, always keep
depressing the brake pedal while stopped with the “READY” indicator is
illuminated, and apply the parking brake as necessary.
● If the vehicle is stopped on an incline, in order to prevent accidents caused
by the vehicle rolling forward or backward, always depress the brake pedal
and securely apply the parking brake as needed.
● Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause
the exhaust system to overheat, which could result in a fire if combusti\
ble
material is nearby.

4287-2. Steps to take in an emergency
AVALON_HV_U (01999-07002)
●The engine coolant temperature gauge enters the red zone or a
loss of power is experienced. (For example, the vehicle speed does
not increase.)
● “Hybrid System Overhe at/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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478Alphabetical index
AVALON_HV_U (01999-07002)
Child safety ................................ 5412-volt battery
precautions ................. 352, 427
Airbag precautions .................. 39
Child restraint system ............. 55
How your child should wear the seat belt .......................... 32
Installing child restraints ......... 59
Moon roof precautions .......... 154
Power window lock switch .... 148
Power window precautions ... 150
Rear door child-protectors .... 113
Removed electronic key battery precautions ...... 373
Seat belt extender precautions ........................... 35
Seat belt precautions .............. 58
Seat heater precautions........ 281
Trunk precautions ................. 119
Child-protectors....................... 113
Cleaning ........................... 324, 327
Aluminum wheels.................. 325
Exterior ................................. 324
Interior................................... 327
Seat belts .............................. 328
Clock ......................................... 298
Coat hooks ............................... 304
Compass .................................. 318
Condenser ................................ 347 Console box ............................. 289
Consumption screen............... 100
Coolant ..................................... 345
Capacity................................ 441
Checking............................... 345
Preparing and checking before winter ...................... 268
Cooling system........................ 345
Engine overheating............... 428
Hybrid system overheating ... 428
Cruise control
Cruise control ....................... 245
Dynamic radar cruise control ................................ 232
Cup holders ............................. 290
Curtain shield airbags............... 37
Customizable features ............ 461

480Alphabetical index
AVALON_HV_U (01999-07002)
Eco drive mode ........................ 258
EDR (Event data recorder) ........ 11
Electric motor (traction motor) ....................... 70
Electric Power
Steering (EPS) ....................... 261Function ................................ 261
Warning light ......................... 397
Electronic key .......................... 106 Battery-saving function ......... 125
If the electronic key does not operate properly ................. 421
Replacing the battery ............ 372
Emergency flashers ................ 390
Emergency, in case of
If the 12-volt battery is discharged .......................... 423
If the electronic key does not operate
properly .............................. 421
If the hybrid system will not start ........................ 418
If the shift lever
cannot be shifted from P .... 420
If the trunk opener is not actuated.............................. 119
If the warning
buzzer sounds .................... 396
If the warning light turns on .............................. 396
If the warning message is displayed......................... 405
If you have a flat tire ............. 406
If you think something
is wrong .............................. 395
If your vehicle becomes
stuck ................................... 432
If your vehicle has to be stopped in an emergency ... 391
If your vehicle needs to be towed ......................... 392
If your vehicle overheats ....... 428 Energy monitor ........................ 100
Engine
ACCESSORY mode ............. 173
Compartment ........................ 341
Engine switch ....................... 172
Hood ..................................... 339
How to start the hybrid system .... ................. 172
Identification number ............ 437
Ignition switch (power switch) .................... 172
Overheating .......................... 428
Power switch ........................ 172
Engine coolant......................... 345
Capacity................................ 441
Checking............................... 345
Preparing and checking before winter ...................... 268
Engine coolant temperature gauge ....................................... 90
Engine oil ................................. 342 Capacity................................ 439
Checking............................... 342
Preparing and checking before winter ...................... 268
Engine switch .......................... 172
EPS (Electronic Power Steering)..................... 261Function ................................ 261
Warning light......................... 397
EV drive mode ......................... 178
Event data recorder (EDR)........ 11
E