engine overheat TOYOTA AVALON HYBRID 2018 Owners Manual (in English)

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6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 326
Cleaning and protecting the vehicle interior ........... 329
6-2. Maintenance Maintenance requirements ................... 332
General maintenance ........ 334
Emission inspection and maintenance (I/M)
programs ......................... 338
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 339
Hood.................................. 341
Positioning a floor jack ...... 342
Engine compartment ......... 343
12-volt battery ................... 352
Tires .................................. 356
Tire inflation pressure........ 365
Wheels .............................. 368
Air conditioning filter .......... 371
Electronic key battery ........ 373
Checking and replacing fuses ............................... 375
Light bulbs ......................... 378 7-1. Essential information
Emergency flashers ........... 392
If your vehicle has to be stopped in an
emergency....................... 393
7-2. Steps to take in an emergency
If your vehicle needs to be towed ...................... 394
If you think something is wrong ........................... 397
If a warning light turns on or a warning buzzer
sounds ............................. 398
If a warning message is displayed...................... 407
If you have a flat tire .......... 408
If the hybrid system will not start ........................... 420
If the electronic key does not operate properly ........ 422
If the 12-volt battery is discharged ................... 424
If your vehicle overheats......................... 429
If the vehicle becomes stuck ................................ 433
6Maintenance and care7When trouble arises

17Pictorial index
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 193
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 269
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . P. 327
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 198
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 198
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 438
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 356
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 443
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 269
Checking/rotation/tire pressure warning system . . . . . . . . . P. 356
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 408
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 341
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 341
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 439
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 429
Headlights/daytime running lights
*. . . . . . . . . . . . . . . . . . . P. 186
Parking lights
*/daytime running lights* . . . . . . . . . . . . . . . P. 186
Front turn signal/parking lights
* . . . . . . . . . . . . . . . . . . . . . P. 184
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 186
Stop/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 186
Rear turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 184
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 180
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 186
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Light bulbs of the exter ior lights for driving
(Replacing method: P. 378, Wattages: P. 444)
*: If equipped
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932. Instrument cluster
2
Instrument cluster
■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. 429)

1594-1. Before driving
4
Driving
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. 393
● 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 h\
igh-
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 your vehicle are high-speed capability
tires or not before driving at such speeds.

1614-1. Before driving
4
Driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■If you hear a squealing or scrapi ng 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.

4297-2. Steps to take in an emergency
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When trouble arises
●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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3
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2

478Alphabetical index
Child safety ................................ 5412-volt battery
precautions ................. 354, 428
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 ...... 374
Seat belt extender precautions ........................... 35
Seat belt precautions .............. 58
Seat heater precautions........ 283
Trunk precautions ................. 119
Child-protectors....................... 113
Cleaning ........................... 326, 329
Aluminum wheels.................. 327
Exterior ................................. 326
Interior................................... 329
Seat belts .............................. 330
Clock ......................................... 300
Coat hooks ............................... 306
Compass .................................. 320
Condenser ................................ 349 Console box ............................. 291
Consumption screen............... 100
Coolant ..................................... 347
Capacity................................ 441
Checking............................... 347
Preparing and checking before winter ...................... 269
Cooling system........................ 347
Engine overheating............... 429
Hybrid system overheating ... 429
Cruise control
Cruise control ....................... 246
Dynamic radar cruise control ................................ 233
Cup holders ............................. 292
Curtain shield airbags............... 37
Customizable features ............ 461

480Alphabetical index
Eco drive mode ........................ 259
EDR (Event data recorder) ........ 11
Electric motor (traction motor) ....................... 70
Electric Power
Steering (EPS) ....................... 262 Function ................................ 262
Warning light ......................... 399
Electronic key .......................... 106 Battery-saving function ......... 125
If the electronic key does not operate properly ................. 422
Replacing the battery ............ 373
Emergency flashers ................ 392
Emergency, in case of
If the 12-volt battery is discharged .......................... 424
If the electronic key does not operate
properly .............................. 422
If the hybrid system will not start ........................ 420
If the trunk opener is not
actuated.............................. 119
If the warning buzzer sounds .................... 398
If the warning light
turns on .............................. 398
If the warning message is displayed......................... 407
If you have a flat tire ............. 408
If you think something is wrong .............................. 397
If your vehicle becomes stuck ................................... 433
If your vehicle has to be
stopped in an emergency ... 393
If your vehicle needs to be towed ......................... 394
If your vehicle overheats ....... 429 Energy monitor ........................ 100
Engine
ACCESSORY mode ............. 173
Compartment ........................ 343
Engine switch ....................... 172
Hood ..................................... 341
How to start the hybrid system .... ................. 172
Identification number ............ 437
Ignition switch (power switch) .................... 172
Overheating .......................... 429
Power switch ........................ 172
Engine coolant......................... 347
Capacity................................ 441
Checking............................... 347
Preparing and checking before winter ...................... 269
Engine coolant temperature gauge ....................................... 90
Engine oil ................................. 344 Capacity................................ 439
Checking............................... 344
Preparing and checking before winter ...................... 269
Engine switch .......................... 172
EPS (Electronic Power Steering)..................... 262 Function ................................ 262
Warning light......................... 399
EV drive mode ......................... 178
Event data recorder (EDR)........ 11
E

482Alphabetical index
Horn .......................................... 141
Hybrid battery (traction battery)...................... 74
Hybrid battery (traction battery)
air vents ................................... 75
Hybrid system ............................ 70 Emergency shut off system .... 75
Energy monitor/
consumption screen ........... 100
EV drive mode ...................... 178
High voltage components ....... 74
Hybrid System Indicator.......... 92
Hybrid system precautions ..... 74
Hybrid vehicle driving tips ..... 266
If the hybrid system will not start ........................ 420
Overheating .......................... 429
Power (ignition) switch .......... 172
Starting the hybrid system .... 172
Vehicle proximity notification system ......... ......................... 71
Hybrid System Indicator ........... 92
Hybrid transmission ................ 180
If the shift lever cannot be shifted from P .... 182
S mode ................................. 181 I/M test ...................................... 338
Identification
Engine .................................. 437
Vehicle .................................. 437
Ignition switch
(power switch) ....................... 172
Illuminated entry system ........ 288
Immobilizer system ................... 79
Indicators ................................... 88
Initialization Maintenance ......................... 333
Tire pressure
warning system .... .............. 357
Inside rear view mirror ............ 143
Instrument panel
light control ............................. 91
Interior lights ........................... 286I

484Alphabetical index
MaintenanceDo-it-yourself maintenance ... 339
General maintenance ........... 334
Maintenance requirements ... 332
Resetting the message
indicating maintenance
is required........................... 332
Malfunction indicator lamp ..... 398
Master warning light................ 401
Meter ........................................... 90 Indicators ................................ 88
Instrument panel
light control ........................... 91
Meters ..................................... 90
Multi-information display ......... 94
Warning lights ......................... 87
Mirrors
Inside rear view mirror .......... 143
Outside rear view mirror defoggers ........................... 278
Outside rear view mirrors...... 145
Vanity mirrors........................ 299
Moon roof ................................. 151
Jam protection function......... 152
Operation .............................. 151
Multi-information display .......... 94 Cruise control........................ 246
Dynamic radar cruise
control................................. 233
Energy monitor ..................... 100
Switching the display .............. 95
Tachometer........................... 181
Trip information ....................... 95
Warning message ................. 407 Navigation system*
Noise from under vehicle ........... 8
Odometer ................................... 90
Oil
Engine oil .............................. 439
Opener
Hood ..................................... 341
Trunk .................................... 116
Outer foot lights ...................... 286
Outside rear view mirrors ....... 145
Adjusting and folding ............ 145
Blind spot monitor ................. 250
Linked mirror function when reversing ................... 146
Mirror position memory ......... 133
Outside rear view
mirror defoggers ................. 278
Overheating ............................. 429
MN
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