engine coolant TOYOTA AVALON HYBRID 2022 User Guide

4777-2. Steps to take in an emergency
7
When trouble arises
●Fluid leaks un der the vehicle.
(Water dripping from the air conditioning a fter use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gauge needle continually points high er
than normal
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the hybrid system
● Engine missing, stumb ling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one s ide when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touch es
the floor
If you think something is wrong
If you notice any of the followi ng symptoms, your vehicle proba -
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

4787-2. Steps to take in an emergency
If a warning light turns on or a war ning
buzzer sounds
Calmly perform the following actions if any of the warning ligh ts
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warning light and w arning buzzer list
Warning lightWarning light/Details/Actions
(Red)
Brake system warning li ght (warning buzzer)
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
(Yellow)
Brake system warning li ght (warning buzzer)
Indicates a malfunction in:
• The regenerative braking system;
• The electronically controlled brake system; or
• The electric parking brake
 Have the vehicle inspected by your Toyota dealer
immediately.
High coolant temperature warning light (warning
buzzer)
*1
Indicates that the engine coolant temperature is too high
 Immediately stop the vehicle in a safe place.
Handling method ( P. 517)
Charging system warning light*1
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Low engine oil pressure warning light (warning
buzzer)
*1
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.

4907-2. Steps to take in an emergency
■Warning messages
The warning messages explained below may differ from the actual messages
according to operation conditions and vehicle specifications.
■ System warning lights
The master warning light does not come on or flash in the following cases.
Instead, a separate system warning light will come on along wit h a message
shown on the multi-information display.
● Malfunction in the ABS
The ABS warning light comes on. ( P. 479)
● Malfunction in the brake system
The brake system warning light (yellow) comes on. ( P. 478)
● Malfunction in the tire pressure warning system
The tire pressure warning light comes on. ( P. 482)
● Remaining fuel level is low
The low fuel level warning light comes on. ( P. 481)
■ If a message instructing to refer to the Owner’s Manual is disp layed
● If the following messages are shown, there may be a malfunction .
Immediately stop the vehicle in a safe place and contact your T oyota dealer.
Continuing to drive the vehicle may be dangerous.
• “Low Braking Power Stop in a Safe Place See Owner’s Manual”
• “Oil Pressure Low Stop in a Safe Place See Owner’s Manual”
• “Charging System Malfunction Stop in a Safe Place See Owner’s Man-
ual”
● If the following message is shown, there may be a malfunction.
Immediately have the vehicle inspected by your Toyota dealer.
• “Hybrid System Malfunction”
• “Check Engine”
• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction”
• “Smart Key System Malfunction”
● If “Engine Coolant Temp High Stop in a Safe Place See Owner’s Manual” is
displayed, follow the instructions accordingly. ( P. 517)
● If “Maintenance Required for Traction Battery Cooling Parts See Owner’s
Manual” is displayed, follow the instructions accordingly. ( P. 456)

5177-2. Steps to take in an emergency
7
When trouble arises
■If the needle of the engine coolant temperature gauge enters
the red zone or “Engine Coolant Temp High Stop in a Safe
Place See Owner’s Manual” is shown on the multi-information
display
Stop the vehicle in a safe place and turn off the air condition ing sys-
tem, 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 radiator
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.
● The needle of the engine c oolant temperature gauge (P. 98)
enters the red zone or a loss of hybrid system power is experi-
enced. (For example, the vehic le speed does not increase.)
● “Engine Coolant Temp High Stop in a Safe Place See Owner’s
Manual” or “Hybrid System Ove rheated Output Power Reduced”
is shown on the multi- information display
● Steam comes out from under the hood.
Correction procedures
1
2
3
1
2

5207-2. Steps to take in an emergency
After stopping the hybrid system and waiting for 5 minutes or
more, start the hybrid system again and check for the multi-infor-
mation display.
If the message d oes not disappear:
Stop the hybrid system and contact your Toyota dealer.
If the message is not displayed:
The hybrid system temperature has dropped and the vehicle
may be driven normally.
However, if the message appears again frequently, contact your Toyota
dealer.
WARNING
■ To prevent an accident or injury 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 ho od until
the steam has subsided. The engine compartment may be very hot.
● After the hybrid system has been turned off, check that the “READY” indi-
cator is off. When the hybrid system is operating, 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 fingers or clothing (especially a tie, a scarf or a muf-
fler) getting caught, resulting in serious injury.
● Do not loosen the radiator cap and the coolant reservoir cap while the
hybrid system and radiator are hot.
High temperature steam or coolant could spray out.
NOTICE
■When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem 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 sa nd or dust
etc.).
● Do not use any coolant additives.
6

5288-1. Specifications
How to read oil container label:
API registered mark is added to
some oil containers to help you
select the oil you should use.
Cooling system
Capacity
(Reference)
Gasoline engine
6.4 qt. (6.1 L, 5.4 Imp. qt.)
Power control unit
1.9 qt. (1.8 L, 1.6 Imp. qt.)
Coolant type Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based
non-silicate, non-amine, non-nitrite, and
non-borate coolant with long-life hybrid
organic acid technology
Do not use plain water alone.
Ignition system
Spark plug
MakeDENSO FC16HR-Q8
Gap0.031 in. (0.8 mm)
NOTICE
■ Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust spark plug g ap.

5428-1. Specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sure
Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressureThe maximum cold inflated pressure to which
a tire may be inflated, shown on the sidewall
of the tire
Recommended infla-
tion pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those stan-
dard items which may be replaced) of hybrid
transmission, power steering, power brakes,
power windows, power seats, radio and
heater, to the extent that these items are avail-
able as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded vehi-
cle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant
weight150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
*
that follows
Occupant distributionDistribution of occupants in a vehicle as speci-
fied in the third column of Table 1
* below

571Alphabetical index
EngineACCESSORY mode ............. 201
Compartment ........................ 425
Engine switch........................ 200
Hood ..................................... 423
How to start the hybrid system ......... ....................... 200
Identification number ............ 525
If your vehicle has to be stopped in an
emergency.......................... 471
Ignition switch (power switch) .................... 200
Overheating .......................... 517
Power switch......................... 200
Engine coolant
Capacity ................................ 528
Checking ............................... 429
Preparing and checking before winter....................... 354
Engine coolant temperature gauge........................................ 98
Engine oil Capacity ................................ 527
Checking ............................... 426
Preparing and checking before winter....................... 354
Engine switch .......................... 200
Enhanced VSC ......................... 344
EPS (Electric Power Steering)...... 345
Warning light ......................... 480
EV drive mode.......................... 206
Event data recorder (EDR) ........................................ 10
Exclusive jump starting terminal .................................. 510 Flat tire ..................................... 494
Floor mats .................................. 24
Fluid
Brake .................................... 529
Hybrid transmission .............. 529
Washer ................................. 432
Front interior light ................... 375
Front passenger occupant
classification system .............. 48
Front passenger’s seat belt
reminder light ........................ 481
Front personal lights............... 375
Front seat heaters ................... 371
Front seats ............................... 159 Adjustment............................ 159
Cleaning ............................... 411
Correct driving posture ........... 26
Driving position memory ....... 163
Head restraints ..................... 168
Power easy access system .......... ...................... 163
Seat heaters ......................... 371
Seat ventilators ..................... 371
Front side marker lights Light switch ........................... 222
Replacing light bulbs ............ 467
Front turn signal lights Replacing light bulbs ............ 467
Turn signal lever ................... 215
Fuel Capacity................................ 526
Fuel gauge.............................. 98
Information............................ 532
Refueling .............................. 234
Type.............................. 526, 532
Warning light......................... 481F

575Alphabetical index
Multi-information display ........ 102Driving information ................ 106
Dynamic radar cruise control with full-speed range .......... 281
Language .............................. 118
LTA (Lane Tracing Assist) .... 270
Outside temperature ............... 98
PCS (Pre-Collision System) .............................. 251
Settings ................................. 111
Suggestion function .............. 120
Warning messages ............... 488
Navigation system
*
Noise from under vehicle............ 6
Odometer.................................... 98
Oil Engine oil .............................. 527
Opener
Fuel filler door ....................... 237
Hood ..................................... 423
Trunk..................................... 148
Outside rear view mirrors ....... 174 Adjusting and folding ............ 174
Blind spot monitor (BSM) ...... 297
Linked mirror function when reversing ................... 175
Mirror position memory ......... 163
Outside rear view mirror
defoggers ........................... 365
Outside temperature
display ...................................... 98
Overheating, Hybrid system .................................... 517 Paddle shift switches .............. 212
Panic mode .............................. 139
Panoramic view monitor
*
Parking brake........................... 216
Parking brake engaged warning buzzer/
message............................. 219
Warning light......................... 480
Parking lights........................... 222 Light switch ........................... 222
Replacing light bulbs ............ 467
PCS (Pre-Collision System) .................................. 246
Warning light......................... 480
Personal lights......................... 375
Power control unit ..................... 79
Power control unit coolant ..... 429 Capacity................................ 528
Checking............................... 429
Preparing and checking before winter ...................... 354
Power outlet ............................. 385
Power steering
(Electric power steering
system) .................................. 345 Warning light......................... 480
Power switch ........................... 200
Power windows ....................... 177 Door lock linked window operation ............................ 179
Jam protection function ........ 177
Operation .............................. 177
Window lock switch .............. 177
Pre-Collision System
(PCS) ...................................... 246 Warning light......................... 480
Premium Audio
*
N
O
P
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

582Alphabetical index
Warning buzzersApproach warning ................. 290
Brake system ....... ................. 478
Downshifting ......................... 212
Electric power steering
system ......... ....................... 480
Intuitive parking assist .......... 316
Lane departure alert
function ............................... 266
Light reminder ....................... 224
Open door ............................. 146
Open hood ............................ 423
Open moon roof .................... 183
Open trunk ............................ 149
Parking brake........................ 480
Pre-collision warning............. 246
Seat belt reminder ................ 481
Vehicle sway warning ........... 268 Warning lights ........................... 93
ABS ...................................... 479
Brake hold operated indicator.............................. 480
Brake Override System ........ 479
Brake system ....... ................. 478
Charging system................... 478
Drive-Start Control ................ 479
Driver’s seat belt reminder ............................. 481
Electric power steering ......... 480
Front passenger’s seat belt reminder .............. 481
High coolant temperature ..... 478
ICS OFF indicator ................. 481
LTA indicator ........................ 480
Low engine oil pressure........ 478
Low fuel level ........................ 481
Malfunction indicator lamp .... 479
Master warning light ............. 481
Parking brake indicator ......... 480
PCS warning light ................. 480
Rear passengers’ seat belt reminder light ....... 481
Seat belt reminder light......... 481
Slip indicator ......................... 481
SRS ...................................... 479
Tire pressure ........................ 482
W