ECO mode TOYOTA COROLLA HYBRID 2021 (in English) Owner's Guide

4397-3. Do-it-yourself maintenance
COROLLA HV_U
7
Maintenance and care
Check the 12-volt battery as fol-
lows.
■12-volt battery exterior
Make sure that the 12-volt bat-
tery terminals are not corroded
and that there are no loose con-
nections, cracks, or loose
clamps.
Terminals
Hold-down clamp
■Before recharging
When recharging, the 12-volt bat-
tery produces hydrogen gas which
is flammable and explosive. There-
fore, observe the following precau-
tions before recharging:
●If recharging with the 12-volt bat-
tery installed on the vehicle, be
sure to disconnect the ground
cable.
●Make sure the charger is off when
connecting and disconnecting the
charger cables to the 12-volt bat-
tery.
■After recharging/reconnecting
the 12-volt battery
●Unlocking the doors using the
smart key system may not be pos-
sible immediately after reconnect-
ing the 12-volt battery. If this
happens, use the wireless remote
control or the mechanical key to
lock/unlock the doors.
●Start the hybrid system with the
power switch in ACC. The hybrid
system may not start with the
power switch turned off. However,
the hybrid system will operate nor-
mally from the second attempt.
●The power switch mode is
recorded by the vehicle. If the
12-volt battery is reconnected, the
vehicle will return the power
switch mode to the status it was in
before the 1 2-volt battery was dis-
connected. Make sure to turn off
the power before disconnecting
the 12-volt battery. Take extra
care when connecting the 12-volt
battery if the power switch mode
prior to discharge is unknown.
If the system will not start even after
multiple attempts, contact your Toy-
ota dealer.
NOTICE
■If the fluid level is low or high
It is normal for the brake fluid level
to go down slightly as the brake
pads wear out or when the fluid
level in the accumulator is high.
If the reservoir needs frequent
refilling, there ma y be a serious
problem.
12-volt battery
WA R N I N G
■Chemicals in the 12-volt bat-
tery
The 12-volt battery contains poi-
sonous and corrosive sulfuric acid
and may produce hydrogen gas
which is flammable and explosive.
To reduce the risk of death or seri-
ous injury, take the following pre-
cautions while working on or near
the 12-volt battery:
●Do not cause sparks by touch-
ing the 12-volt battery terminals
with tools.

4437-3. Do-it-yourself maintenance
COROLLA HV_U
7
Maintenance and care
■Checking the tire valves
When replacing the tires, check the
tire valves for deformation, cracks,
and other damage.
Rotate the tires in the order
shown.
Front
To equalize tire w ear and extend
tire life, Toyota recommends that
tire rotation is carried out at the
same interval as tire inspection.
Vehicles with a tire pressure warn-
ing system: Do not fa il to initialize
the tire pressure warning system
after tire rotation.
Your vehicle is equipped with a
tire pressure warning system
that uses tire pressure warning
valves and transmitters to detect
WA R N I N G
■When inspecting or replacing
tires
Observe the following precautions
to prevent accidents.
Failure to do so may cause dam-
age to parts of the drive train as
well as dangerous handling char-
acteristics, which may lead to an
accident resulting in death or seri-
ous injury.
●Do not mix tires of different
makes, models or tread pat-
terns.
Also, do not mix tires of remark-
ably different treadwear.
●Do not use tire si zes other than
those recommended by Toyota.
●Do not mix differently con-
structed tires (radial, bias-belted
or bias-ply tires).
●Do not mix summer, all season
and snow tires.
●Do not use tires that have been
used on another vehicle.
Do not use tires if you do not
know how they were used previ-
ously.
NOTICE
■If tire inflation pressure of
each tire becomes low while
driving
Do not continue driving, or your
tires and/or wheels may be
ruined.
■Driving on rough roads
Take particular care when driving
on roads with loose surfaces or
potholes.
These conditions may cause
losses in tire inflation pressure,
reducing the cush ioning ability of
the tires. In addition, driving on
rough roads may cause damage
to the tires themselves, as well as
the vehicle’s wheels and body.
Tire rotation
Tire pressure warning
system (if equipped)

5138-2. Steps to take in an emergency
COROLLA HV_U
8
When trouble arises
shown on the multi-informa-
tion display.
4 Press the power switch
shortly and firmly.
In the event that the hybrid sys-
tem still cannot be started, con-
tact your Toyota dealer.
■Stopping the hybrid system
Shift the shift lever to P and press
the power switch as you normally do
when stopping the hybrid system.
■Electronic key battery
As the above proc edure is a tempo-
rary measure, it is recommended
that the electronic key battery be
replaced immediate ly when the bat-
tery is depleted. ( P.459)
■Changing power switch modes
Release the brake pedal and press
the power switch in step 3 above.
The hybrid system does not start
and modes will be changed each
time the switch is pressed. ( P.160)
If the 12-volt batter y is
discharged
The following procedures
may be used to start the
hybrid system if the 12-volt
battery is discharged.
You can also call your Toy-
ota dealer or a qualified
repair shop.

5158-2. Steps to take in an emergency
COROLLA HV_U
8
When trouble arises
recharge the 12-volt battery
of your vehicle.
5 Open and close any of the
doors of your vehicle with the
power switch OFF.
6 Maintain the engine speed of
the second vehicle and start
the hybrid system of your
vehicle by turning the power
switch to ON.
7 Make sure the “READY” indi-
cator comes on. If the indica-
tor does not come on, contact
your Toyota dealer.
8 Once the hybrid system has
started, remove the jumper
cables in the exact reverse
order from which they were
connected.
Once the hybrid system starts,
have the vehicle inspected at
your Toyota dealer as soon as
possible.
■Starting the hybrid system
when the 12-volt battery is dis-
charged
The hybrid system cannot be started
by push-starting.
■To prevent 12-volt battery dis-
charge
●Turn off the headlights and the
audio system while the hybrid sys-
tem is off.
●Turn off any unnecessary electri-
cal components when the vehicle
is running at a low speed for an
extended period, such as in heavy
traffic.
■When the 12-volt battery is
removed or discharged
●Information stored in the ECU is
cleared. When the 12-volt battery
is depleted, have the vehicle
inspected at your Toyota dealer.
●Some systems may require initial-
ization. ( P.552)
■When removing the 12-volt bat-
tery terminals
When the 12-volt battery terminals
are removed, the information stored
in the ECU is cleared. Before
removing the 12-vo lt battery termi-
nals, contact you r Toyota dealer.
■Charging the 12-volt battery
The electricity stored in the 12-volt
battery will discha rge gradually even
when the vehicle i s not in use, due
to natural dischar ge and the drain-
ing effects of certain electrical appli-
ances. If the vehicle is left for a long
time, the 12-volt battery may dis-
charge, and the hybrid system may
be unable to start. (The 12-volt bat-
tery recharges automatically while
the hybrid system is operating.)
■When recharging or replacing
the 12-volt battery
●In some cases, it may not be pos-
sible to unlock the doors using the
smart key system when the
12-volt battery is discharged. Use
the wireless remote control or the
mechanical key to lock or unlock
the doors.
●The hybrid syste m may not start
on the first attempt after the
12-volt battery has recharged but
will start normally after the second
attempt. This is not a malfunction.
●The power switch mode is memo-
rized by the vehicle. When the
12-volt battery is reconnected, the
system will return to the mode it
was in before the 12-volt battery
was discharged. Before discon-
necting the 12-volt battery, turn
the power switch off.
If you are unsure what mode the

5489-2. Customization
COROLLA HV_U
■Power windows (P.142)
■Automatic light control system ( P.173)
■Lights ( P.173)
*: Except for Canada
Theft deterrent panic
modeOnOff——O
Locking operation when
door openedOnOffO—O
FunctionDefault settingCustomized setting
Mechanical key linked
operationOffOn——O
Wireless remote control
linked operationOffOn (open only)——O
Wireless remote control
linked operation signal
(buzzer)
OnOff——O
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2O—O
Time elapsed before
headlights automatically
turn off after doors are
closed
30 seconds
Off
O—O60 seconds
90 seconds
Windshield wiper linked
headlight illuminationOnOff——O
FunctionDefault settingCustomized setting
Daytime running light
systemOnOff*O—O
FunctionDefault settingCustomized setting

570Alphabetical Index
COROLLA HV_U
Dynamic radar cruise control with full-speed range ........... 207Warning message ................ 216
E
ECB (Electronically Controlled Brake System) ...................... 240
ECO Accelerator Guidance ... 105
Eco score ................................ 105
EDR (Event data recorder)......... 8
Elapsed time ........................... 107
Electric motor (traction motor)80
Electric Power Steering (EPS) ............................................... 240Warning light ........................ 481
Electronic key ......................... 116 Battery-saving function......... 126
If the electronic key does not operate properly ................. 511
Replacing the battery ........... 459
Electronically Controlled Brake System (ECB) ....................... 240
Emergency flashers ............... 470
Emergency tire puncture repair kit ........................................... 490
Emergency, in case of If a warning buzzer sounds .. 478
If a warning light turns on ..... 478
If a warning message is dis-played................................. 487
If the 12-volt battery is dis- charged .............................. 513
If the electronic key does not operate properly ................. 511
If the fuel filler door cannot be opened ............................... 511
If the hybrid sy stem will not start
........................................... 509
If the vehicle is trapped in rising water .................................. 472
If you have a fla t tire ..... 490, 501
If you lose your keys ............ 510 If you think something is wrong
...........................................476
If your vehicle becomes stuck ...........................................520
If your vehicle has to be stopped in an emergency .................471
If your vehicle needs to be towed ...........................................473
If your vehicle ove rheats ......517
Energy monitor .......................109
Engine ACCESSORY mode . ............160
Compartment........................434
Engine switch .......................157
Hood .....................................432
How to start the hybrid system ...........................................157
Identification number ............525
If the hybrid sys tem will not start
...........................................509
If your vehicle has to be stopped in an emergency .................471
Ignition switch (power switch) ...........................................157
Overheating ..........................517
Power switch ........................157
Tachometer.............................98
Engine coolant Capacity ...............................527
Checking ..............................436
Preparing and checking before winter ..................................247
Engine coolant temperature gauge .......................................98
Engine oil Capacity ...............................526
Checking ..............................434
Preparing and checking before winter ..................................247
Warning light.........................479

571Alphabetical Index
COROLLA HV_U
Engine switch (power switch)157 If your vehicle has to be stopped in an emergency................. 471
Enhanced VSC ........................ 240
Entering letters and num- bers/list screen operation ... 263Entering letters and numbers263
List screen ............................ 264
EPS (Electric Power Steering) ............................................... 240Warning light ........................ 481
Establishing an Android Auto connection ............................ 285
Establishing an Apple CarPlay connection ............................ 284
EV drive mode ........................ 162
EV indicator .............................. 81
Event data recorder (EDR)......... 8
F
Flat tire Tire pressure warning system........................................... 443
Vehicles with a spare tire ..... 501
Vehicles without a spare tire 490
Floor mats ................................. 24
Fluid Brake .................................... 528
Hybrid transmission.............. 528
Washer ................................. 440
FM ............................................ 303
Front passenger occupant clas- sification system .................... 41
Front seats Adjustment ........................... 133
Cleaning ............................... 422
Correct driving posture ........... 25
Head restraints ..................... 136
Seat heaters ......................... 393
Front side marker lights Light switch .......................... 173
Replacing light bulbs ............ 464 Wattage ................................530
Front turn signal lights Replacing light bulbs ............464
Turn signal lever ...................166
Fuel Capacity ...............................525
Fuel gauge .............................98
Information ......... ..................531
Refueling ..............................180
Type......................................525
Warning light.........................481
Fuel consumption Average fuel economy ..........104
Current fuel consumption .....104
Fuel economy .........................104
Fuel filler door If the fuel filler door cannot be opened ............................... 511
Refueling ..............................180
Fuel gauge.................................98
Functional overview ...............372
Fuses .......................................461
G
Garage door opene r ............... 411
Gauges ......................................98
General button (Setup screen) .......................................258, 291
General settings .....................291 Displaying the general settings screen.................................291
General settings screen .......291
Glove box ................................398
H
Hands-free system .................343
Head restraints .......................136
Headlights Automatic High Beam system...........................................175
Light switch...........................173

574Alphabetical Index
COROLLA HV_U
Meter Clock ...................................... 98
Indicators................................ 96
Instrument panel light control101
Meter control switches ......... 103
Meters .................................... 98
Multi-information display ...... 103
Settings ................................ 108
Warning lights....................... 478
Warning message ................ 487
Microphone ............................. 346
Mirrors Inside rear view mirror.......... 139
Outside rear view mirror defog-gers .................................... 387
Outside rear view mirrors ..... 140
Vanity mirrors ....................... 409
Mobile Assistant ..................... 341 Connectable devices and avail-able functions ..................... 341
Mobile Assistant operation ... 341
Multi-information display Audio system-linked display . 107
Clock .................................... 101
Driving information display ... 104
Driving support system informa-tion display ......................... 107
Dynamic radar cruise control with full-speed range .......... 207
ECO Accelerator Guidance .. 105
Eco score ............................. 105
Energy monitor ..................... 109
Fuel economy....................... 104
Hybrid System Indicator ....... 105
LTA (Lane Tracing Assist) ..... 202
Menu icons ........................... 103
Meter control switches ......... 103
Settings ................................ 108
Tire pressure ........................ 443
Vehicle information display... 107
Warning message ................ 487N
Noise from under ve hicle...........6
O
Odometer.................................100
Odometer and trip meter display
Display change button ..........100
Display items ........................100
Oil Engine oil..............................526
Open trays ...............................399
Opener Fuel filler door.......................180
Hood .....................................432
Trunk ....................................124
Outside rear view mirrors Adjustment ...........................140
BSM (Blind Spot M onitor) .....221
Folding..................................141
Outside rear view mirror defog- gers ....................................387
RCTA function.......................226
Outside temperature ................98
Overheating.............................517
P
Panic mode ............................. 118
Parking brake Operation..............................167
Parking brake engaged warning buzzer.................................169
Warning light.........................484
Warning message.................169
Parking lights Light switch...........................173
Replacing light bulbs ............464
PCS (Pre-Collision System) Function................................189
Warning light.........................483

577Alphabetical Index
COROLLA HV_U
Setup screen ........................... 258
Shift lever Hybrid transmission.............. 164
If the shift lever cannot be shifted from P................................. 165
Shift lock system .................... 165
Side airbags .............................. 31
Side marker lights Light switch .......................... 173
Replacing light bulbs .... 464, 465
Wattage ................................ 530
Side mirrors Adjustment ........................... 140
BSM (Blind Spot Monitor)..... 221
Folding ................................. 141
RCTA function ...................... 226
Side turn signal lights Replacing light bulbs ............ 464
Turn signal lever ................... 166
Side windows ...... ................... 142
SiriusXM (SXM) ....................... 303
Smart key system Antenna location .................. 125
Entry functions ..................... 119
Starting the hybrid system.... 157
Snow tires ............................... 247
Spare tire ................................. 501 Inflation pressure.................. 529
Storage location ................... 502
Spark plug ............................... 527
Specifications ......................... 524
Speedometer ............................ 98
Status icon .............................. 256 Status icon explanation ........ 256
Steering lock Column lock release............. 158
Steering lock system warning message............................. 158
Steering switch ............... 319, 334 Audio switch ......................... 319
Talk switch ............................ 334 Steering wheel
Adjustment ...........................138
Heated steering wheel..........393
Meter control switches..........103
Stop lights Replacing light bulbs ............464
Storage features ... ..................397
Stuck If the vehicle becomes stuck 520
Sun visors ...............................409
Switches Automatic High Beam system...........................................175
Brake Hold switch .................170
Display change button ..........100
Door lock switches ...............121
Driving mode select switch ...239
Dynamic radar cruise control with full-speed range switch207
Emergency flashers switch...470
EV drive mode switch ...........162
Garage door opener switches ........................................... 411
Heated steering wheel switch ...........................................393
Ignition switch .......................157
Instrument panel light control switches..............................101
Light switches .......................173
LTA (Lane Tracing Assist) switch ...........................................202
Meter control switches..........103
Outside rear v iew mirror
switches..............................140
Parking brake switch ............167
Power door lock switch.........121
Power switch ........................157
Power window switches .......142
Rear window and outside rear view mirror defoggers switch...........................................386
Seat heater switches ............393

579Alphabetical Index
COROLLA HV_U
Specification ......................... 526
Warning message .................. 87
Traction Control (TRAC) ........ 240
Traction motor (electric motor)80
Trailer towing .......................... 155
Transmission Driving mode select switch... 239
Hybrid transmission.............. 164
If the shift lever cannot be shifted from P................................. 165
Trip meters .............................. 100
Trunk ....................................... 123 Internal trunk release lever... 125
Smart key system................. 124
Trunk light............................. 124
Trunk opener ........................ 124
Wireless remote control ....... 124
Trunk features ........................ 400
Trunk light ............................... 124 Wattage ................................ 530
Turn signal lights Replacing light bulbs ............ 464
Turn signal lever ................... 166
Wattage ................................ 530
U
USB charging port.................. 401
USB memory ........................... 309
USB port .................................. 300
V
Vanity lights ............................ 409Wattage ................................ 530
Vanity mirrors ......................... 409
Vehicle button (Setup screen) ....................................... 258, 296
Vehicle data recording ............... 7
Vehicle identifi cation number524
Vehicle information display ... 107 Vehicle settings ......................296
Displaying the vehicle settings screen.................................296
Valet mode setting ................296
Vehicle settings screen.........296
Vehicle Stability Control (VSC) ...............................................240
Voice button (Setup screen) 258, 295
Voice command system .........334 Using the voice command sys-tem .....................................334
Voice command system opera- tion......................................335
Voice settings .........................295 Displaying the voice settings screen.................................295
Voice settings screen ...........295
VSC (Vehicle Stability Control) ...............................................240
W
Warning buzzers ABS ......................................480
Airbags .................................480
Approach warning ................214
Brake hold ............................484
Brake Override System ........480
Brake system ........................478
Charging system ..................479
Drive-Start Control ................480
Electric power steering .........481
Engine ..................................479
High coolant temperature .....478
Hybrid system .......................479
Hybrid system overheat ........479
Low engine oil pressure .......479
LTA (Lane Tracing Assist) ...197, 482
Open door ....................120, 122
RCTA (Rear Cross Traffic Alert) ...........................................483