coolant temperature TOYOTA AVALON 2020 Owners Manual (in English)

902. Instrument cluster
The units used on the meters may differ depending on the target region.
Tachometer
Displays the engine speed in revolutions per minute
Shift position (P. 1 8 9 )
Outside temperature
Displays the outside temperature within the range of -40°F (-40 °C) to
122°F (50°C). Low outside temperat ure indicator comes on when the
ambient temperature is 37°F (3°C) or lower.
Multi-information display
Presents the driver with a variety of vehicle data ( P. 93)
Displays warning messages in case of a malfunction ( P. 440)
Speedometer
Fuel gauge
Odometer and trip meter P. 1 0 6 )
Engine coolant temperature gauge
Displays the engine coolant temperature
Gauges and meters
1
2
3
4
5
6
7
8

922. Instrument cluster
■The meters and display illuminate when
The engine switch is in IGNITION ON mode.
■ Brightness of the meters (day mode and night mode)
●The brightness of the meters is changed between day mode and ni ght
mode.
• Day mode: When the tail lights are off or when the tail lights are on but
the surrounding area is bright
• Night mode: When the tail lights are on and the surrounding ar ea is dark
● When in night mode, the brightness will be reduced slightly unless the
meters are set to the maximum brightness level.
■ Outside temperature display
In the following situations, the correct outside temperature ma y not be dis-
played, or the display may take longer than normal to change:
● When stopped, or driving at low speeds (less than 16 mph [25 km/h])
● When the outside temperature has changed suddenly (at the entra nce/exit
of a garage, tunnel, etc.)
● When “ ” or “E” is displayed, the system may be malfunctioning.
Take your vehicle to your Toyota dealer.
NOTICE
■ To prevent damage to the engine and its components
● Do not let the indicator needle of the tachometer enter the red zone, which
indicates the maximum engine speed.
● 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. 4 6 6 )

3806-3. Do-it-yourself maintenance
WARNING
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.
■When working on the engine compartment
● Keep hands, clothing and tools away from the moving fan and eng ine
drive belt.
● Be careful not to touch the engine, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
● Do not leave anything that may burn easily, such as paper and r ags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel or t he bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
■ When working near the electric cooling fan or radiator grille
Be sure the engine switch is off. With the engine switch in IGN ITION ON
mode, the electric cooling fan may automatically start to run if the air condi-
tioning is on and/or the coolant temperature is high. ( P. 388)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air.

3876-3. Do-it-yourself maintenance
6
Maintenance and care
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. 466)
■ 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-bora te 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 deal er.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir ca ps, 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

4287-2. Steps to take in an emergency
●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 engine
● 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

4307-2. 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
(U.S.A.)
(Red)
(Canada)
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 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. 466)
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.

4667-2. Steps to take in an emergency
Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, and then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled
down sufficiently, inspect the
hoses and radiator core (radia-
tor) 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. 90)
enters the red zone or a loss of engine power is experienced. ( For
example, the vehicle s peed does not increase.)
● “Engine Coolant Temp High Stop in a Safe Place See Owner’s
Manual” is shown on the mult i-information display.
● Steam comes out from under the hood.
Correction procedures
1
2
3
1
2

4687-2. Steps to take in an emergency
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.
● 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 clot hing to be
caught, resulting in serious injury.
● Do not loosen the radiator cap and the coolant reservoir cap wh ile 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 cool ant.
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 sa nd or dust
etc.).
● Do not use any coolant additives.

529Alphabetical index
Engine coolantCapacity ................................ 476
Checking ............................... 387
Preparing and checking before winter....................... 316
Engine coolant temperature gauge........................................ 90
Engine immobilizer system ...... 77
Engine oil Capacity ................................ 475
Checking ............................... 384
Preparing and checking before winter....................... 316
Engine switch .......................... 184
Enhanced VSC ......................... 309
Entune Audio Plus
*
Entune Premium Audio*
EPS (Electric Power Steering)...... 310
Warning light ......................... 432
Event data recorder (EDR) ........................................ 11 Flat tire ..................................... 445
Floor mats .................................. 26
Fluid
Automatic transaxle .............. 477
Brake .................................... 478
Washer ................................. 392
Front interior light ................... 333
Front passenger occupant
classification system .............. 50
Front passenger’s seat belt
reminder light ........................ 433
Front personal lights............... 333
Front seat heaters ................... 329
Front seats ............................... 142 Adjustment............................ 142
Cleaning ............................... 369
Correct driving posture ........... 28
Driving position memory ....... 146
Head restraints ..................... 151
Power easy access system .......... ...................... 146
Seat heaters ......................... 329
Seat ventilators ..................... 329
Front side marker lights Light switch ........................... 202
Replacing light bulbs ............ 419
F
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

538Alphabetical index
Vanity lights ............................. 342Wattage ................................ 480
Vanity mirrors .......................... 342 Vanity lights .......................... 342
Vehicle data recording ................ 9
Vehicle identification number ................................... 473
Vehicle Stability Control (VSC) ...................................... 309
VSC
(Vehicle Stability Control) .... 309
Warning buzzers Approach warning ................. 256
Brake system ....... ................. 430
Downshifting ......................... 192
Electric power steering system ......... ....................... 432
Intuitive parking assist .......... 279
Lane departure alert function ............................... 239
Light reminder ....................... 205
Open door ............................. 129
Open hood ............................ 381
Open moon roof .................... 166
Open trunk ............................ 132
Parking brake........................ 432
Pre-collision warning............. 226
Seat belt reminder ................ 433
Vehicle sway warning ........... 240 Warning lights ........................... 85
ABS ...................................... 431
Brake hold operated indicator.............................. 432
Brake Override System ........ 431
Brake system ....... ................. 430
Charging system................... 430
Drive-Start Control ................ 431
Driver’s seat belt reminder ............................. 433
Electric power steering ......... 432
Front passenger’s seat belt reminder ...................... 433
High coolant temperature ..... 430
ICS OFF indicator ................. 433
LDA indicator ........................ 432
Low engine oil pressure........ 430
Low fuel level ........................ 433
Malfunction indicator lamp .... 431
Master warning light ............. 433
Parking brake indicator ......... 432
PCS warning light ................. 432
Rear passengers’ seat belt reminder light ..................... 433
Seat belt reminder light......... 433
Slip indicator ......................... 433
SRS ...................................... 431
Tire pressure ........................ 434
Warning messages.................. 440
Washer ..................................... 210 Checking............................... 392
Preparing and checking
before winter ...................... 316
Switch ................................... 210
V
W