2021 TOYOTA YARIS CROSS 12-volt battery is discharged

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3-2. Opening, closing and locking the doors
Before driving
■Door lock buzzer (vehicles with a
smart entry & start system)
If an attempt to lock the doors using the entry function or wireless remote control
is made when a door is not fully closed, a buzzer will sound continuously for 5 seconds. Fully close the door to stop the
buzzer, and lock the doors again.
■Alarm (if equipped)
Locking the doors will set the alarm sys- tem. ( P.86)
■Conditions affecting the operation
of the smart entry & start system or wireless remote control
Vehicles without a smart entry & start
system
 P. 1 3 3
Vehicles with a smart entry & start system
 P. 1 5 4
■If the smart entry & start system or
the wireless remote control does not operate properly
Vehicles without a smart entry & start
system
Replace the key battery with a new one
if it is depleted. ( P.415)
Vehicles with a smart entry & start system
Use the mechanical key to lock and
unlock the doors. ( P.474)
Replace the key battery with a new one
if it is depleted. ( P.415)
■If the 12-volt battery is discharged
(vehicles with a smart entry & start system)
The doors cannot be locked and
unlocked using the entry function or wireless remote control. Lock or unlock the doors using the mechanical key.
( P.474)
■Rear seat reminder function
●In order to remind you not to forget
luggage, etc., in the rear seat, when the power switch is turned to OFF
after any of the following conditions
are met, a buzzer will sound and a message will be displayed on the multi-information display for approxi-
mately 6 seconds. • The hybrid system is started within 10 minutes after opening and closing a
rear door. • A rear door has been opened and closed after the hybrid system was
started.
However, if a rear door is opened and
then closed within approximately 2 sec-
onds, the rear seat reminder function
may not operate.
●The rear seat reminder function deter-
mines that luggage, etc., has been placed in a rear seat based on open-ing and closing of a rear door. There-
fore, depending on the situation, the rear seat reminder function may not operate and you may still forget lug-
gage, etc., in the rear seat, or it may operate unnecessarily.
●The rear seat reminder function can be enabled/disabled. ( P.498)
■Customization
Some functions can be customized.
( P.498)
WARNING
■To prevent an accident
Observe the following precautions
while driving the vehicle. Failure to do so may result in a door opening and an occupant being
thrown out of the vehicle, resulting in death or serious injury.
●Ensure that all doors are properly closed and locked.
●Do not pull the inside door handle while driving.Be especially careful of the front
doors, as the doors may be opened even if the inside lock buttons are in the locked position.

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3-2. Opening, closing and locking the doors
Before driving
■Effective range (areas within which
the electronic key is detected)
When locking or unlocking the doors
The system can be operated when the
electronic key is within about 0.7 m (2.3
ft.) of an outside front door handle and
back door. (Only the doors detecting the
key can be operated.)
When starting the hybrid system or
changing power switch modes
The system can be operated when the
electronic key is inside the vehicle.
■Alarms and warning messages
A combination of exterior and interior
buzzers as well as warning messages shown on the multi-information display are used to prevent theft of the vehicle
and accidents resulting from erroneous operation. Take appropriate measures based on the displayed message.
( P.449)
When only an alarm sounds, circum-
stances and correction procedures are as follows.
●Exterior buzzer sounds once for 5 seconds
●Interior buzzer sounds continuously
■Battery-saving function
The battery-saving function will be acti- vated in order to prevent the electronic
key battery and the 12-volt battery from being discharged while the vehicle is not operated for a long time.
●In the following situations, the smart entry & start system may take some
time to unlock the doors. • The electronic key has been left within approximately 3.5 m (11 ft.) of the out-
side of the vehicle for 2 minutes or longer.• The smart entry & start system has
not been used for 5 days or longer.
●If the smart entry & start system has
not been used for 14 days or longer, the doors cannot be unlocked from any door except the driver’s door. In
this case, hold the driver’s door han- dle, or use the wireless remote control or mechanical key to unlock the
doors.
■Electronic key battery-saving func- tion
●When battery-saving mode is set, bat-tery depletion is minimized by stop-ping the electronic key from receiving
radio waves.
Press twice while pressing and
holding . Confirm that the electronic
SituationCorrection
procedure
An attempt was made
to lock the vehicle while
a door was open.
Close all of
the doors and
lock the doors
again.
SituationCorrection
procedure
The power switch was
turned to ACC while the
driver’s door was open
(or the driver’s door
was opened while the
power switch was in
ACC).
Turn the
power switch
off and close
the driver’s
door.
The power switch was
turned to off while the
driver’s door was open.
Close the
driver’s door.

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4-2. Driving procedures
until the “READY” indicator is steady
on, as steady means the vehicle is able to move.
●When the hybrid battery (traction bat-tery) is extremely cold (below approxi-mately -30°C [-22°F]) under the
influence of the outside temperature, it may not be possible to start the hybrid system. In this case, try to start the
hybrid system again after the tem- perature of the hybrid battery increases due to the outside tempera-
ture increase, etc.
■Sounds and vibrations specific to a hybrid vehicle
 P. 7 7
■If the 12-volt battery is discharged
The hybrid system cannot be started using the smart entry & start system. Refer to P.476 to restart the hybrid sys-
tem.
■Electronic key battery depletion
 P. 1 3 1
■Conditions affecting operation
 P. 1 5 4
■Notes for the entry function
 P. 1 5 4
■Steering lock function
●After turning the power switch off and
opening and closing the doors, the steering wheel will be locked due to the steering lock function. Operating
the power switch again automatically cancels the steering lock.
●When the steering lock cannot be released, “Push POWER Switch while Turning the Steering Wheel in Either
Direction” will be displayed on the multi-information display. Press the power switch shortly and
firmly while turning the steering wheel left and right.
●To prevent the steering lock motor
from overheating, the motor may be suspended if the hybrid system is turned on and off repeatedly in a short
period of time. In this case, refrain from operating the power switch. After about 10 seconds, the steering lock
motor will resume functioning.
■If the “READY” indicator does not come on
In the event that the “READY” indicator
does not come on even after performing the proper procedures for starting the vehicle, contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer immediately.
■If the hybrid system is malfunction-ing
 P. 4 4 9
■Electronic key battery
 P. 4 1 5
■Operation of the power switch
●If the switch is not pressed shortly and firmly, the power switch mode may not change or the hybrid system may not
start.
●If attempting to restart the hybrid sys-
tem immediately after turning the power switch off, the hybrid system may not start in some cases. After
turning the power switch off, please wait a few seconds before restarting the hybrid system.
■Customization
If the smart entry & start system has been deactivated in a customized set-ting, refer to P.474.

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5-2. Using the interior lights
Interior features
Turns the lights on/off
■Illuminated entry system
The lights automatically turn on/off according to the power switch mode, the presence of the electronic key (vehicles
with entry function), whether the doors are locked/unlocked, and whether the doors are opened/closed.
■To prevent the 12-volt battery from
being discharged
If the interior lights remain on when the power switch is turned off, the lights will
go off automatically after 20 minutes.
■The interior lights may turn on automatically when
If any of the SRS airbags deploy (inflate)
or in the event of a strong rear impact, the interior lights will turn on automati-cally.
The interior lights will turn off automati- cally after approximately 20 minutes.The interior lights can be turned off man-
ually. However, in order to help prevent further collisions, it is recommended that they be left on until safety can be
ensured. (The interior lights may not turn on auto-matically depending on the force of the
impact and conditions of the collision.)
■Customization
Some functions can be customized. ( P.498)
Operating the personal
lights
NOTICE
■To prevent 12-volt battery dis- charge
Do not leave the lights on longer than necessary when the hybrid system is off.

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5-4. Other interior features
The vanity light turns on. (if equipped)
■To prevent 12-volt battery dis-
charge
If the vanity lights remain on when the power switch is OFF, the lights will go off
automatically after 20 minutes.
Some audio features can be con-
trolled using the switches on the
steering wheel.
Operation may differ depending on
the type of audio system or naviga-
tion system. For details, refer to the
manual provided with the audio
system or navigation system.
An assist grip installed on the ceil-
ing can be used to support your
body while sitting on the seat.
Front
Rear (if equipped)
NOTICE
■To prevent the 12-volt battery
from being discharged
Do not leave the vanity lights on for extended periods while the hybrid
system is off.
Using the steering wheel
switches
Assist grips
WARNING
■Assist grip
Do not use the assist grip when get-
ting in or out of the vehicle or rising from your seat.

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7-2. Steps to take in an emergency
If you have a set of jumper (or
booster) cables and a second vehi-
cle with a 12-volt battery, you can
jump start your vehicle by following
the steps below.
1 Vehicles with an alarm (P. 8 6 ) :
Confirm that the electronic key
is being carried.
When connecting the jumper (or booster) cables, depending on the situ-
ation, the alarm may activate and doors
locked. ( P. 8 7 )
2Open the hood (P.386) and
fuse box cover.
3 Open the exclusive jump start-
ing terminal cover.
4 Connect a positive jumper cable clamp to on your vehicle and con-
nect the clamp on the other end of the positive cable to on th e sec-
ond vehicle. Then, connect a negative cable clamp to on the se cond
If the 12-volt batter y is
discharged
The following procedures may
be used to start the hybrid sys-
tem if the 12-volt battery is dis-
charged.
You can also call any autho-
rized Toyota retailer or Toyota
authorized repairer, or any reli-
able repairer or a qualified
repair shop.
Restarting the hybrid sys-
tem

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7-2. Steps to take in an emergency
authorized repairer, or any reliable
repairer as soon as possible.
■Starting the hybrid system when the 12-volt battery is discharged
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 system is off.
●Turn off any unnecessary electrical components when the vehicle is run-ning 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 any authorized Toyota retailer or Toyota authorized repairer, or any reli-able repairer.
●Some systems may require initializa-tion. ( P.509)
■When removing the 12-volt battery
terminals
When the 12-volt battery terminals are removed, the information stored in the
ECU is cleared. Before removing the 12- volt battery terminals, contact any
authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
■Charging the 12-volt battery
The electricity stored in the 12-volt bat- tery will discharge gradually even when the vehicle is not in use, due to natural
discharge and the draining effects of certain electrical appliances. If the vehi-cle is left for a long time, the 12-volt bat-
tery may discharge, and the hybrid system may be unable to start. (The 12-volt battery recharges automatically
while the hybrid system is operating.)
■When recharging or replacing the
12-volt battery (vehicles with a smart entry & start system)
●In some cases, it may not be possible to unlock the doors using the smart entry & start system when the 12-volt
battery is discharged. Use the wire- less remote control or the mechanical key to lock or unlock the doors.
●The hybrid system may not start on the first attempt after the 12-volt bat-
tery has recharged but will start nor- mally after the second attempt. This is not a malfunction.
●The power switch mode is memorized by the vehicle. When the 12-volt bat-
tery is reconnected, the system will return to the mode it was in before the 12-volt battery was discharged.
Before disconnecting the 12-volt bat- tery, turn the power switch off.If you are unsure what mode the
power switch was in before the 12-volt battery discharged, be especially careful when reconnecting the 12-volt
battery.
■When replacing the 12-volt battery
●Use a Central Degassing type 12-volt
battery (European Regulations).
●Use a battery that the case size is
same as the previous one, 20 hour rate capacity (20HR) is equivalent or greater, and performance rating
(CCA) is equivalent or greater. Check the label on top of the battery for the battery size and specifications (ex.
LN0, 35Ah, 264A). • If the sizes differ, the 12-volt battery cannot be properly secured.
• If the 20 hour rate capacity is low, even if the time period where the vehi-cle is not used is a short time, the 12-
volt battery may discharge and the hybrid system may not be able to start.
●Use a ventilation type calcium battery
●Use a 12-volt battery with a handle. If a 12-volt battery without a handle is used, removal is more difficult.

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Alphabetical Index
Alphabetical Index
A
A/C
Air conditioning filter................... 410
Automatic air conditioning system
................................................. 350
ABS (Anti-lock Brake System) .... 336
Warning light .............................. 441
ACA (Active Cornering Assist) .... 336
Acoustic vehicle alerting system .. 77
Active Cornering Assist (ACA) .... 336
Adaptive High-beam System ....... 211
AHB (Automatic High Beam) ....... 215
AHS (Adaptive High-beam System)
..................................................... 211
Air conditioning filter ................... 410
Air conditioning system
Air conditioning filter................... 410
Automatic air conditioning system
................................................. 350
Airbag manual on-off system ........ 47
Airbags ............................................ 38
Airbag manual on-off system ....... 47
Airbag operating conditions ......... 40
Airbag precautions for your child . 43
Correct driving posture................. 33
Curtain shield airbag operating con-
ditions ........................................ 40
Curtain shield airbag precautions 43
General airbag precautions.......... 43
Locations of airbags ..................... 38
Modification and disposal of airbags
................................................... 45
Side airbag operating conditions.. 40
Side airbag precautions ............... 43
Side and curtain shield airbags oper-
ating conditions.......................... 40
Side and curtain shield airbags pre-
cautions ..................................... 43
SRS airbags ................................. 38
SRS warning light.......................441
Alarm................................................86
Alarm ............................................ 86
Warning buzzer .......................... 439
Antennas (smart entry & start sys-
tem) ..............................................152
Anti-lock Brake System (ABS)..... 336
Warning light .............................. 441
Approach warning ........................ 259
Assist grips ...................................372
Audio remote control switches ... 372
Audio system-linked display 110, 116
Automatic air conditioning system
..................................................... 350
Automatic headlight leveling system
..................................................... 207
Automatic High Beam ..................215
Automatic light control system ... 207
Auxiliary box ................................. 363
Average fuel economy ......... 107, 114
Average vehicle speed ......... 110, 116
B
Back door ...................................... 139
Hands Free Power Back Door ... 144
Power back door ........................ 142
Wireless remote control ............. 142
Back-up light
Replacing light bulbs ..........424, 427
Battery (12-volt battery) ............... 394
Battery checking......................... 394
If the 12-volt battery is discharged
................................................. 476
Preparing and checking before win-
ter ............................................. 345
Warning light .............................. 440