oil temperature TOYOTA COROLLA HYBRID 2020 Owners Manual (in English)

812-1. Instrument cluster
COROLLA HV_U
2
Vehicle status information and indicators
vehicle’s systems.
*1: These lights come on when the power switch is turned to ON to
indicate that a system check is
being performed. They will turn
off after the hybrid system is
started, or after a few seconds.
There may be a malfunction in a
system if the lights do not come
on, or turn off. Have the vehicle
inspected by your Toyota dealer.
(U.S.A.)
Brake system warning
light
*1 (  P.450)
(Red)
(Canada)
Brake system warning
light
*1 (  P.450)
(Yellow)
Brake system warning
light
*1 ( P.450)
High coolant temperature
warning light
*2 (  P.450)
Hybrid system overheat
warning light
*2 (  P.451)
Charging system warning
light
*1 (  P.451)
Low engine oil pressure
warning light
*2 (  P.451)
(U.S.A.)
Malfunction indicator
lamp
*1 ( P.451)
(Canada)
Malfunction indicator
lamp
*1 ( P.451)
SRS warning light
*1
(  P.452)
(U.S.A.)
ABS warning light*1
(  P.452)
(Canada)
ABS warning light*1
(  P.452)
Brake Override System
warning light/Drive-Start
Control warning light
*2
(  P.452)
(Red)
Electric power steering
system warning light
*1
(  P.453)
(Yellow)
Electric power steering
system warning light
*1
(  P.453)
Low fuel level warning
light ( P.453)
Driver’s and front passen-
ger’s seat belt reminder
light ( P.453)
Rear passengers’
seat belt reminder
lights ( P.454)
Tire pressure warning
light
*1 (if equipped)
(  P.454)
(Orange)
LTA indicator ( P.454)
(Flashes
or illumi- nates)PCS warning light*1
(  P.455)
Slip indicator
*1 (  P.455)
(Flashes)
(U.S.A.)
Parking brake indicator
(  P.455)
(Flashes)
Parking brake indicator
( P.455)
(Flashes)
Brake hold operated indi-
cator
*1 ( P.456)

4037-3. Do-it-yourself maintenance
COROLLA HV_U
7
Maintenance and care
Light bulbs
(  P.435)
• Bulb with same
number and wattage
rating as original
• Flathead screw- driver
•Wrench
Radiator
and con-
denser
(  P.409)

Tire infla-
tion pres-
sure
( P.422)• Tire pressure gauge
• Compressed air
source
Washer
fluid
( P.412)
• Water or washer
fluid containing anti-
freeze (for winter
use)
• Funnel (used only for adding water or
washer fluid)
WA R N I N G
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
●Make sure that the “ACCES-
SORY” or “IGNITION ON” on
the multi-inform ation display
and the “READY” indicator are
both off.
●Keep hands, clothing and tools
away from the moving fans.
ItemsParts and tools●Be careful not to touch the
engine, power control unit, radi-
ator, 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 compart-
ment.
●Do not smoke, c ause sparks or
expose an open flame to fuel or
the 12-volt battery. Fuel and
12-volt battery fumes are flam-
mable.
●Be extremely cautious when
working on the 12-volt battery. It
contains poisonous and corro-
sive sulfuric acid.
■When working near the elec-
tric cooling fans or radiator
grille
Be sure the power switch is OFF.
With the power switch in ON, the
electric cooling fans may auto-
matically start to r un if the air con-
ditioning is on an d/or the coolant
temperature is high. ( P.409)
■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 ai r cleaner filter
removed may cause excessive
engine wear due to dirt in the air.

4067-3. Do-it-yourself maintenance
COROLLA HV_U
Washer fluid tank ( P.412)
Engine coolant reservoir ( P.408)
Fuse boxes ( P.433)
Engine oil level dipstick ( P.407)
Engine oil filler cap ( P.407)
Power control unit coolant reservoir ( P.408)
Brake fluid reservoir ( P.410)
12-volt battery ( P.411)
Radiator ( P.409)
Condenser ( P.409)
Electric cooling fans
With the engine at operating temperature and turned off,
check the oil level on the dip-
stick.
Engine compar tment
Components
Checking and adding the
engine oil

4518-2. Steps to take in an emergency
COROLLA HV_U
8
When trouble arises
■Hybrid system overheat warning light* (warning buzzer)
*: This light illuminat es on the multi-information display.
■Charging system warning light
■Low engine oil pressure warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Malfunction indicator lamp (warning buzzer)
Warning lightDetails/Actions
Indicates that the temperature of the hybrid system is
excessively high
Stop the vehicle in a safe place.
Handling method ( P.489)
Warning lightDetails/Actions
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Warning lightDetails/Actions
Indicates that the engine oil pressure is excessively low
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Warning lightDetails/Actions
(U.S.A.)
or
(Canada)
Indicates a malfunction in:
The hybrid system;
 The electronic engine control system;
 The electronic throttle control system; or
 The electronic hybrid tr ansmission control system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.

4989-1. Specifications
COROLLA HV_U
■Oil capacity (Drain and refill
[Reference
*])
*: The engine oil capacity is a refer-ence quantity to be used when
changing the engine oil. Warm up
the engine and turn off the hybrid
system, wait more than 5 min-
utes, and check the oil level on
the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is
used in your Toyota vehicle. Use
Toyota approved “Toyota Genu-
ine Motor Oil” or equivalent to
satisfy the following grade and
viscosity.
Oil grade: API SN/RC multi-
grade engine oil
Recommended viscosity: SAE
0W-16 Outside temperature
SAE 0W-16 is the best choice
for good fuel economy and good
starting in cold weather.
If SAE 0W-16 is not available,
SAE 0W-20 oil may be used.
However, it must be replaced
with SAE 0W-16 at the next oil
change.
Oil viscosity (0W-16 is explained
here as an example):
• The 0W in 0W-16 indicates the characteristic of the oil
which allows cold startability.
Oils with a lower value before
the W allow for easier starting
of the engine in cold weather.
• The 16 in 0W-16 indicates the viscosity characteristic of the
oil when the oil is at high tem-
perature. An oil with a higher
viscosity (one with a higher
value) may be better suited if
the vehicle is operated at high
speeds, or under extreme
load conditions.
Capacity6.5 Ah (3HR)
Quantity28 modules
Overall voltage201.6 V
Lubrication system
With filter4.4 qt. (4.2 L, 3.7 Imp.
qt.)
Without
filter4.1 qt. (3.9 L, 3.4 Imp.
qt.)

542Alphabetical Index
COROLLA HV_U
Dynamic radar cruise control with full-speed range ........... 192Warning message ................ 201
E
ECB (Electronically Controlled Brake System) ...................... 220
ECO Accelerator Guidance ..... 91
Eco score .................................. 91
EDR (Event data recorder)......... 8
Elapsed time ............................. 93
Electric motor (traction motor)68
Electric Power Steering (EPS) ............................................... 221Warning light ........................ 453
Electronic key ......................... 102 Battery-saving fun ction......... 112
If the electronic key does not operate properly ................. 483
Replacing the battery ........... 431
Electronically Controlled Brake System (ECB) ....................... 220
Emergency flashers ............... 442
Emergency tire puncture repair kit ........................................... 462
Emergency, in case of If a warning buzzer sounds .. 450
If a warning light turns on ..... 450
If a warning message is dis-played................................. 459
If the 12-volt battery is dis- charged .............................. 485
If the electronic key does not operate properly ................. 483
If the fuel filler door cannot be opened ............................... 483
If the hybrid sy stem will not start
........................................... 481
If the vehicle is trapped in rising water .................................. 444
If you have a fla t tire ..... 462, 473
If you lose your keys ............ 482 If you think something is wrong
...........................................448
If your vehicle becomes stuck ...........................................492
If your vehicle has to be stopped in an emergency .................443
If your vehicle needs to be towed ...........................................445
If your vehicle ove rheats ......489
Energy monitor .........................95
Enform App Suite button (Setup screen) ...................................238
Engine ACCESSORY mode . ............145
Compartment........................406
Engine switch .......................143
Hood .....................................404
How to start the hybrid system ...........................................143
Identification number ............497
If the hybrid sys tem will not start
...........................................481
If your vehicle has to be stopped in an emergency .................443
Ignition switch (power switch) ...........................................143
Overheating ..........................489
Power switch ........................143
Tachometer.............................84
Engine coolant Capacity ...............................499
Checking ..............................408
Preparing and checking before winter ..................................228
Engine coolant temperature gauge .......................................84
Engine oil Capacity ...............................498
Checking ..............................406
Preparing and checking before winter ..................................228
Warning light.........................451

546Alphabetical Index
COROLLA HV_U
Meter Clock ...................................... 84
Indicators................................ 82
Instrument panel light control . 87
Meter control switches ........... 89
Meters .................................... 84
Multi-information display ........ 89
Settings .................................. 94
Warning lights....................... 450
Warning message ................ 459
Microphone ............................. 320
Mirrors Inside rear view mirror.......... 124
Outside rear view mirror defog-gers .................................... 359
Outside rear view mirrors ..... 125
Vanity mirrors ....................... 381
Mobile Assistant ..................... 315 Connectable devices and avail-able functions ..................... 315
Mobile Assistant operation ... 315
Multi-information display Audio system-linked display ... 93
Clock ...................................... 87
Driving informatio n display ..... 90
Driving support system informa- tion display ........................... 93
Dynamic radar cruise control with full-speed range .......... 192
ECO Accelerator Guidance .... 91
Eco score ............................... 91
Energy monitor ....................... 95
Fuel economy......................... 90
Hybrid System Indicator ......... 91
LTA (Lane-Tracing Assist) .... 187
Menu icons ............................. 89
Meter control switches ........... 89
Settings .................................. 94
Tire pressure ........................ 415
Vehicle information display..... 93
Warning message ................ 459N
Noise from under ve hicle...........6
O
Odometer...................................86
Odometer and trip meter display
Display change button ............86
Display items ..........................86
Oil Engine oil..............................498
Open trays ...............................371
Opener Fuel filler door.......................165
Hood .....................................404
Trunk .................................... 110
Outside rear view mirrors Adjustment ...........................125
BSM (Blind Sport Monitor) ....205
Folding..................................126
Outside rear view mirror defog-gers ....................................359
Outside temperature ................84
Overheating.............................489
P
Panic mode .............................103
Parking brake Operation..............................153
Parking brake engaged warning buzzer.................................155
Warning light.........................455
Warning message.................155
Parking lights Light switch...........................158
Replacing light bulbs ............436
PCS (Pre-Collision System) Function................................174
Warning light.........................455
Personal lights ........................367 Wattage ................................502

5511-1. What to do if... (Troubleshooting)
COROLLA HV_U551Alphabetical Index
Trunk features ........................ 372
Trunk light ............................... 110 Wattage ................................ 502
Turn signal lights Replacing light bulbs ............ 436
Turn signal lever ................... 152
Wattage ................................ 502
U
USB charging port.................. 373
USB memory ........................... 283
USB/AUX port ......................... 276
V
Vanity lights ............................ 381Wattage ................................ 502
Vanity mirrors ......................... 381
Vehicle button (Setup screen) ....................................... 238, 272
Vehicle data recording ............... 7
Vehicle identifi cation number496
Vehicle information display ..... 93
Vehicle settings ...................... 272 Displaying the vehicle settings screen ................................ 272
Valet mode setting ................ 273
Vehicle settings screen ........ 272
Vehicle Stability Control (VSC) ............................................... 221
Voice button (Setup screen) 238, 271
Voice command system......... 308 Using the voice command sys-tem ..................................... 308
Voice command system opera- tion ..................................... 309
Voice settings ......................... 271 Displaying the voice settings screen ................................ 271
Voice settings screen ........... 271 VSC (Vehicle Stability Control)
...............................................221
W
Warning buzzers ABS ......................................452
Airbags .................................452
Approach warning ................198
Brake hold ............................456
Brake Override System ........452
Brake system ........................450
Charging system ..................451
Drive-Start Control ................452
Electric power steering .........453
Engine ..................................451
High coolant temperature .....450
Hybrid system .......................451
Hybrid system overheat ........451
Low engine oil pressure .......451
LTA (Lane Tracing Assist) ...182, 454
Open door ....................106, 108
Seat belt .......................453, 454
Warning label ............................71
Warning lights .........................450 ABS ......................................452
Brake hold operated indicator...........................................456
Brake Override System ........452
Brake system ........................450
Charging system ..................451
Drive-Start Control ................452
Electric power steering .........453
High coolant temperature .....450
Hybrid system overheat ........451
Low engine oil pressure .......451
Low fuel level........................453
LTA indicator .........................454
Malfunction indica tor lamp ....451
Parking brake indicator.........455
Pre-collision syst em .............455
Seat belt reminder light 453, 454