coolant temperature TOYOTA AVALON HYBRID 2019 Owners Manual (in English)

922. Instrument cluster
The units used on the meters may differ depending on the target region.
Hybrid System Indicator
Displays hybrid system output or regeneration level (P. 94)
Shift position (P. 1 9 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. 96)
Displays warning messages in case of a malfunction ( P. 462)
Speedometer
Fuel gauge
Odometer and trip meter P. 1 1 1 )
Engine coolant temperature gauge
Displays the engine coolant temperature
Gauges and meters
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4
5
6
7
8

952. Instrument cluster
2
Instrument cluster
■Engine speed
On hybrid vehicles, engine speed is precisely controlled in ord er to help
improve fuel efficiency and reduce exhaust emissions etc.
There are times when the engine speed that is displayed may dif fer even
when vehicle operation and driving conditions are the same.
■ 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
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. 491)

4076-3. Do-it-yourself maintenance
6
Maintenance and care
Engine coolant reservoir
The coolant level is satisfactory if it is between the “F” and “L” lines on
the reservoir when the hybrid system 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. 491)
Power control unit coolant reservoir
The coolant level is satisfact ory if it is between the “FULL” a nd “LOW”
lines on the reservoir when the hybrid system is cold.
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line. ( P. 491)
■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.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -31 F [-35 C])
Coolant
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4517-2. 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

4527-2. 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. 491)
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 w arning 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.

4917-2. 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. 92)
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 Overheated Reduced Output Power”
is shown on the multi- information display
● Steam comes out from under the hood.
Correction procedures
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4947-2. 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 To y o t a
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 wh ile 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

544Alphabetical index
Emergency, in case ofIf a warning buzzer sounds ................................ 452
If a warning light turns on...... 452
If a warning message is displayed ............................ 462
If the 12-volt battery is
discharged .......................... 484
If the electronic key does not operate properly ................. 481
If the hybrid system will not start ........................ 479
If you have a flat tire ............. 468
If you lose your keys ..... 129, 131
If you think something is wrong.................................. 451
If your vehicle becomes stuck ................................... 495
If your vehicle has to be
stopped in an emergency ... 447
If your vehicle needs to be towed .................................. 448
If your vehicle overheats ....... 491
Engine ACCESSORY mode ............. 191
Compartment ........................ 403
Engine switch........................ 190
Hood ..................................... 401
How to start the hybrid
system ......... ....................... 190
Identification number ............ 499
If your vehicle has to be
stopped in an
emergency.......................... 447
Ignition switch (power switch) .................... 190
Overheating .......................... 491
Power switch......................... 190 Engine coolant
Capacity................................ 502
Checking............................... 407
Preparing and checking before winter ...................... 327
Engine coolant temperature gauge ....................................... 92
Engine oil Capacity................................ 501
Checking............................... 404
Preparing and checking before winter ...................... 327
Engine switch .......................... 190
Enhanced VSC ......................... 317
Entune Audio Plus
*
Entune Premium Audio*
EPS
(Electric Power Steering) ..... 318 Warning light......................... 454
EV drive mode ......................... 196
Event data recorder (EDR) .......................................... 9
Exclusive jump starting terminal .................................. 484

554Alphabetical index
Vanity lights ............................. 356Wattage ................................ 505
Vanity mirrors .......................... 356 Vanity lights .......................... 356
Vehicle data recording ................ 8
Vehicle identification number ................................... 499
Vehicle proximity notification system ...................................... 70
Vehicle Stability Control
(VSC) ...................................... 317
VSC (Vehicle Stability Control) .... 317
Warning buzzers Approach warning ................. 266
Brake system ....... ................. 452
Downshifting ......................... 202
Electric power steering
system ......... ....................... 454
Intuitive parking assist .......... 289
Lane departure alert
function ............................... 248
Light reminder ....................... 214
Open door ............................. 136
Open hood ............................ 401
Open moon roof .................... 173
Open trunk ............................ 139
Parking brake........................ 453
Pre-collision warning............. 236
Seat belt reminder ................ 455
Vehicle sway warning ........... 250 Warning lights ........................... 87
ABS ...................................... 453
Brake hold operated indicator.............................. 454
Brake Override System ........ 453
Brake system ....... ................. 452
Charging system................... 452
Drive-Start Control ................ 453
Driver’s seat belt reminder ............................. 455
Electric power steering ......... 454
Front passenger’s seat belt reminder .............. 455
High coolant temperature ..... 452
ICS OFF indicator ................. 454
LDA indicator ........................ 454
Low engine oil pressure........ 452
Low fuel level ........................ 455
Malfunction indicator lamp .... 453
Master warning light ............. 455
Parking brake indicator ......... 453
PCS warning light ................. 454
Rear passengers’ seat belt reminder light ....... 455
Seat belt reminder light......... 455
Slip indicator ......................... 455
SRS ...................................... 453
Tire pressure ........................ 455
Warning messages.................. 462
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