change key battery TOYOTA COROLLA 2021 Owners Manual (in English)

1644-2. Driving procedures
COROLLA_Uas the audio system can be used.
3
ON ( “ON” position)
All electrical com ponents can be
used.
4 START ( “START” position)
For starting the engine.
■Turning the key from ACC to
OFF
1 Shift the shift lever to P (continu-
ously variable transmission) or N
(manual transmission).
2 Push in the key and turn it to
OFF.
■Key reminder function
A buzzer sounds if the driver’s door
is opened while the engine switch is
in OFF or ACC to r emind you to
remove the key.
1 Check that the parking brake
is set. ( P.180, 181)
2 Check that the shift lever is in
P (continuously variable
transmission) or N (manual
transmission).
3 Firmly depress the brake
pedal (continuously variable
transmission) or clutch pedal
(manual transmission).
and a message will be dis-
played on the multi-information dis-
play. If it is not displayed, the
engine cannot be started.
4 Press the engine switch
shortly and firmly.
When operating the engine switch,
one short, firm press is enough. It is
not necessary to press and hold the
switch.
The engine will crank until it starts
or for up to 30 seconds, whichever
is less.
Continue depressing the brake
pedal (continuously variable trans-
mission) or clutch pedal (manual
transmission) unt il the engine is
completely started.
WA R N I N G
■Caution when driving
Do not turn the engine switch to
OFF while driving. If, in an emer-
gency, you must turn the engine
off while the vehicle is moving,
turn the engine switch only to
ACC to stop the engine. An acci-
dent may result i f the engine is
stopped while driving. ( P.502)
NOTICE
■To prevent battery discharge
Do not leave the engine switch in
ACC or ON for long periods of
time without the engine running.
Engine (ignition)
switch (vehicles with
a smar t key system)
Performing the following
operations when carrying
the electronic key on your
person starts the engine or
changes engine switch
modes.
Starting the engine

1654-2. Driving procedures
4
Driving
COROLLA_UThe engine can be started from any
engine switch mode.
■If the engine does not start
●The engine immobilizer system
may not have been deactivated.
(
 P. 8 0 )
Contact your Toyota dealer.
●If a message related to start-up is
shown on the multi-information
display, read the message and fol-
low the instructions.
■If the battery is discharged
The engine cannot be started using
the smart key system. Refer to
P.546to restart the engine.
■Electronic key battery depletion
 P. 1 1 0
■Conditions affecting operation
 P. 1 2 7
■Notes for the entry function
 P. 1 2 8
■Steering lock function
●After turning the engine switch off
and opening and closing the
doors, the steer ing wheel will be
locked due to the steering lock
function. Operating the engine
switch again automatically can-
cels the steering lock.
●When the steering lock cannot be
released, “Push Engine Switch
while Turning Steering Wheel in
Either Direction” will be displayed
on the multi-information display.
Press the engine switch shortly
and firmly while turning the steer- ing wheel left and right.
●To prevent the steering lock motor
from overheating, operation of the
motor may be suspended if the
engine is turned on and off repeat-
edly in a short period of time. In
this case, refrain from operating
the engine switch.
After about 10
seconds, the steering lock motor
will resume functioning.
■Electronic key battery
 P.489
■Operation of the engine switch
●If the switch is not pressed shortly
and firmly, the engine switch
mode may not change or the
engine may not start.
●If attempting to res tart the engine
immediately after turning the
engine switch off, the engine may
not start in some cases. After turn-
ing the engine switch off, please
wait a few seconds before restart-
ing the engine.
■Customization
If the smart key system has been
deactivated in a customized setting,
refer to P.544.
WA R N I N G
■When starting the engine
Always start the engine while sit-
ting in the driver’s seat. Do not
depress the accelerator pedal
while starting the engine under
any circumstances.
Doing so may cause an accident
resulting in death o r serious injury.

609Alphabetical Index
COROLLA_URiding with children ................ 47
Types of child restraint system
installation met hod ............... 50
Using an anchor bracket ........ 68
Child safety Airbag precautions ................. 36
Battery precautions ...... 473, 550
Child restraint system............. 50
Heated steering wheel and seat
heater precautions ............. 426
How your child should wear the seat belt................................ 28
Moon roof precau tions ......... 146
Power window lock switch.... 144
Power window precautions .. 143
Rear door child-protectors.... 121
Removed electronic key battery precautions......................... 491
Seat belt extender precautions ............................................. 28
Seat belt precautions ............. 47
Trunk precautions................. 122
Child-protectors ..................... 121
Cleaning Exterior ................................. 452
Interior .................................. 454
Radar sensor........................ 197
Seat belts ............................. 454
Wheels and wheel ornaments........................................... 452
Clock ............... 91, 93, 95, 98, 322
Coat hooks .............................. 443
Command list ......................... 367
Condenser .............................. 471
Console box ............................ 432
Consumption screen.............. 106
Continuously variable transmis- sion ................................ 169, 172If the shift lever cannot be shifted from P......................... 171, 173
M mode ................................ 175
Paddle shift switches.... 174, 175 Cooling system .......................470
Engine overheating ..............550
Cruise control Dynamic radar cruise control 240
Dynamic radar cruise control with full-speed range ..........229
Cup holders.............................431
Current fuel consumption......102
Curtain shield airbags ..............31
Customizable featu res ...........581
D
Daytime running light system186
DCM .................................406, 407
Defogger
Outside rear view mirrors ...418, 422
Rear window.................418, 422
Windshield ....................417, 422
Dimensions .............................556
Dinghy towing .........................162
Display Dynamic radar cruise control 240
Dynamic radar cruise control with full-speed range ..........229
LDA (Lane Departure Alert with steering control)..................226
LTA (Lane Tracing Assist) .....217
Multi-information display.......100
RCTA ....................................258
Warning message.................521
Display change button .......92, 97
Do-it-yourself maintenance ...458
Door lock Doors .................................... 117
Key ....................................... 118
Smart key system .................125
Wireless remote control........ 112
Doors Automatic door locking and unlocking system ................121
Door glasses ........................142