coolant temperature TOYOTA AVALON 2021 Owners Manual (in English)
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 2021, Model line: AVALON, Model: TOYOTA AVALON 2021Pages: 548, PDF Size: 13.4 MB
Page 90 of 548

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  temperature  indicator  comes  on  when  the
ambient temperature is 37°F (3°C) or lower.
Multi-information display
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03000b[P. 93)
Displays warning messages in case of a malfunction (P. 444)
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 
Page 92 of 548

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  night
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 area 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  may  not  be  dis-
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030057005200030046004b00440051004a0048001d0003[
●When stopped, or driving at low speeds (less than 16 mph [25 km/h])
●When  the  outside  temperature  has  changed  suddenly  (at  the  entrance/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 7 1 ) 
Page 380 of 548

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  engine
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 rags, in the
engine compartment.
●Do  not  smoke,  cause  sparks  or  expose  an  open  flame  to  fuel  or  the  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  IGNITION  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. 389)
■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. 
Page 388 of 548

3886-3. Do-it-yourself maintenance
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. 471)
■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-borate 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: -31F [-35C])
Canada: 
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deion-
ized water. (Minimum temperature: -44F [-42C])
For more details about engine coolant, contact your Toyota dealer.
■If the coolant level drops within a short time of replenishing
Visually  check  the  radiator,  hoses,  engine  coolant  reservoir  caps,  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 
Page 432 of 548

4327-2. Steps to take in an emergency
●Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge needle continually points higher
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, stumbling or running roughly
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss  of  brake  effectiveness,  spongy  feeling,  pedal  almost  touches
the floor
If  you think something is wrong
If you notice any of the following symptoms, your vehicle proba-
bly  needs  adjustment  or  repair.  Contact  your  Toyota  dealer  as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms 
Page 434 of 548

4347-2. 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 lights
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 warning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Red)
(Canada)
Brake system warning light (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 light (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. 471)
Charging system warning light*1
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56005c0056005700480050[
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. 
Page 471 of 548

4717-2. Steps to take in an emergency
7
When trouble arises
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  coolant  temperature  gauge  (P.  90)
enters the red zone or a loss of engine power is experienced. (For
example, the vehicle speed does not increase.)
●“Engine  Coolant  Temp  High  Stop  in  a  Safe  Place  See  Owner’s
Manual” is shown on the multi-information display. 
●Steam comes out from under the hood.
Correction procedures
1
2
3
1
2 
Page 473 of 548

4737-2. Steps to take in an emergency
7
When trouble arises
Start  the  engine  and  turn  the  air  conditioning  system  on  to  check
that the radiator cooling fan operates and to check for coolant leaks
from the radiator or hoses.
The  fan  operates  when  the  air  conditioning  system  is  turned  on immedi-
ately after a cold start. Confirm that the fan is operating by checking the fan
sound  and  air  flow.  If  it  is  difficult  to  check  these,  turn  the  air  conditioning
system  on  and  off  repeatedly.  (The  fan  may  not  operate  in  freezing  tem-
peratures.)
If the fan is not operating: 
Stop the engine immediately and contact your Toyota dealer.
If the fan is operating: 
Have the vehicle inspected at the nearest Toyota dealer.
WARNING
■To  prevent  an  accident  or  injury  when  inspecting  under  the  hood of
your vehicle
Observe the following precautions. 
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03004400560003004500580055005100560011[
●If  steam  is  seen  coming  from  under  the  hood,  do  not  open  the  hood  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  clothing to  be
caught, resulting in serious injury.
●Do  not  loosen  the  radiator  cap  and  the  coolant  reservoir  cap  while  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 coolant.
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 sand or dust
etc.).
●Do not use any coolant additives.
6
7 
Page 537 of 548

537Alphabetical index
Engine coolant
Capacity ................................ 483
Checking ............................... 388
Preparing and checking 
before winter....................... 317
Engine coolant temperature 
gauge........................................ 90
Engine immobilizer system ...... 77
Engine oil
Capacity ................................ 481
Checking ............................... 385
Preparing and checking 
before winter....................... 317
Engine switch .......................... 184
Enhanced VSC ......................... 309
EPS 
(Electric Power Steering)...... 310
Warning light ......................... 436
Event data recorder 
(EDR) ........................................ 11Flat tire ..................................... 449
Floor mats .................................. 26
Fluid
Automatic transaxle .............. 484
Brake .................................... 486
Washer ................................. 393
Front interior light ................... 333
Front passenger occupant 
classification system .............. 50
Front passenger’s seat belt 
reminder light ........................ 438
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 ............ 421F 
Page 546 of 548

546Alphabetical index
Vanity lights ............................. 342
Wattage ................................ 488
Vanity mirrors .......................... 342
Vanity lights .......................... 342
Vehicle data recording ................ 9
Vehicle identification 
number ................................... 479
Vehicle Stability Control 
(VSC) ...................................... 309
VSC 
(Vehicle Stability Control) .... 309
Warning buzzers
Approach warning ................. 255
Brake system ........................ 434
Downshifting ......................... 192
Electric power steering 
system ................................ 436
Intuitive parking assist .......... 279
Lane departure alert 
function ............................... 238
Light reminder ....................... 205
Open door ............................. 129
Open hood ............................ 381
Open moon roof .................... 166
Open trunk ............................ 132
Parking brake........................ 436
Pre-collision warning............. 226
Seat belt reminder ................ 438
Vehicle sway warning ........... 239Warning lights ........................... 85
ABS ...................................... 435
Brake hold operated 
indicator.............................. 436
Brake Override System ........ 435
Brake system ........................ 434
Charging system................... 434
Drive-Start Control ................ 435
Driver’s seat belt 
reminder ............................. 438
Electric power steering ......... 436
Front passenger’s seat 
belt reminder ...................... 438
High coolant temperature ..... 434
ICS OFF indicator ................. 437
LDA indicator ........................ 436
Low engine oil pressure........ 434
Low fuel level ........................ 437
Malfunction indicator lamp .... 435
Master warning light ............. 438
Parking brake indicator ......... 436
PCS warning light ................. 437
Rear passengers’ seat belt 
reminder light ..................... 438
Seat belt reminder light......... 438
Slip indicator ......................... 437
SRS ...................................... 435
Tire pressure ........................ 438
Warning messages.................. 444
Washer ..................................... 210
Checking............................... 393
Preparing and checking 
before winter ...................... 317
Switch ................................... 210
V
W