2017 TOYOTA YARIS HYBRID key battery

1373-2. Opening, closing and locking the doors
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Operation of each component
YARIS_HV_OM_Europe_OM52G76E
■ Conditions affecting operation
The smart entry & start system uses weak radio waves. In the following situa-
tions, the communication between the electronic key and the vehicle may be
affected, preventing the smart entry & start system, wireless remote control
and immobilizer system from operating properly.
(Ways of coping: P. 448)
● When the electronic key battery is depleted
● Near a TV tower, electric power plant, gas station, radio station, large dis-
play, airport or other facility that generates strong radio waves or electrical
noise
● When the electronic key is in contact with, or is covered by the following
metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
● When other wireless keys (that emit radio waves) are being used nearby
● When carrying the electronic key together with the following devices that
emit radio waves
• Portable radio, cellular phone, cordless phone or other wireless commu-
nication device
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
● If window tint with a metallic content or metallic objects are attached to the
rear window
● When the electronic key is placed near a battery charger or electronic
devices

1814-2. Driving procedures
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Driving
YARIS_HV_OM_Europe_OM52G76E
■ If the hybrid system is malfunctioning
 P. 405
■ Key reminder function
A buzzer sounds if the driver’s door is opened while the power switch is in the
“LOCK” or “ACC” position to remind you to remove the key.
WARNING
■ When starting the hybrid system
Always start the hybrid system while sitting in the driver’s seat. Do not
depress the accelerator pedal while starting the hybrid system under any
circumstances.
Doing so may cause an accident resulting in death or serious injury.
■ Caution when driving
Do not turn the power switch to the “LOCK” position while driving. If, in an
emergency, you must turn the hybrid system off while the vehicle is moving,
turn the power switch only to the “ACC” position to stop the hybrid system.
An accident may result if the hybrid system is stopped while driving.
( P. 395)
NOTICE
■To prevent 12-volt battery discharge
Do not leave the power switch in the “ACC” or “ON” position for long periods
of time without the hybrid system operating.
■ When starting the hybrid system
If the hybrid system becomes difficult to start, have your vehicle checked by
any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional immediately.

1844-2. Driving procedures
YARIS_HV_OM_Europe_OM52G76E
If the hybrid system is stopped with the shift lever in a position other
than P, the power switch will not be turned off but instead be turned to
ACCESSORY mode. Perform the following procedure to turn the
switch off:
Check that the parking brake is set.
Shift the shift lever to P.
Check that the smart entry & start system indicator (green) flashes
slowly and then press the power switch once.
Check that the smart entry & start system indicator (green) is off.
■ Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or ON
mode (the hybrid system is not operating) for more than an hour with the shift
lever in P, the power switch will automatically turn off. However, this function
cannot entirely prevent 12-volt battery discharge. Do not leave the vehicle
with the power switch in ACCESSORY or ON mode for long periods of time
when the hybrid system is not operating.
■ Sounds and vibrations specific to a hybrid vehicle
 P. 7 8
■ Electronic key battery depletion
 P. 11 3
■ When the ambient temperature is low, such as during winter driving con-
ditions
When starting the hybrid system, the fl ashing time of the “READY” indicator
may be long. Leave the vehicle as it is until the “READY” indicator is steady
on, as steady means the vehicle is able to move.
■ Conditions affecting operation
 P. 137
■ Notes for the start function
 P. 138
When stopping the hybrid system with the shift lever in a posi-
tion other than P
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1864-2. Driving procedures
YARIS_HV_OM_Europe_OM52G76E
■ If the electronic key battery is depleted
 P. 369
■ 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 system 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 sys-
tem.
■ If the smart entry & start system has been deactivated in a customized
setting
 P. 448
WARNING
■When starting the hybrid system
Always start the hybrid system while sitting in the driver’s seat. Do not
depress the accelerator pedal while starting the hybrid system under any
circumstances.
Doing so may cause an accident resulting in death or serious injury.
■ Caution while driving
If a hybrid system failure occurs while the vehicle is moving, do not lock or
open the doors until the vehicle reaches a safe and complete stop. Activa-
tion of the steering lock in this circumstance may lead to an accident, result-
ing in death or serious injury.
■ Stopping the hybrid system in an emergency
If you want to stop the hybrid system in an emergency while driving the
vehicle, press and hold the power switch for more than 3 seconds, or press
it briefly 3 times or more in succession. ( P. 395)
However, do not touch the power switch while driving except in an emer-
gency. Turning the hybrid system off while driving will not cause loss of
steering or braking control, however, power assist to the steering will be
lost. This will make it more difficult to steer smoothly, so you should pull over
and stop the vehicle as soon as it is safe to do so.

2004-3. Operating the lights and wipers
YARIS_HV_OM_Europe_OM52G76E
■ Light reminder buzzer
Vehicles without a smart entry & start system
A buzzer sounds when the key is removed from the power switch and the
driver’s door is opened while the lights are turned on.
Vehicles with a smart entry & start system
A buzzer sounds when the power switch is turned off or turned to ACCES-
SORY mode and the driver’s door is opened while the lights are turned on.
■ Battery-saving function
In all conditions following below, the headlights and the other remaining lights
will go off automatically after 20 minutes in order to prevent the vehicle bat-
tery from being discharged:
● The headlights and/or tail lights are on.
● The light switch is in or .
● Vehicles without a smart entry & start system: The power switch is in the
“ACC” or the “LOCK” position.
● Vehicles with a smart entry & start system: The power switch is turned to
ACCESSORY mode or turned off.
This function will be canceled in any of the following situations:
● Vehicles without a smart entry & start system: When the power switch is
turned to the “ON” position.
● Vehicles with a smart entry & start system: When the power switch is turned
to ON mode.
● When the light switch is operated.
● When the door is opened or closed.
■ Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features: P. 475)
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is
off.

3046-2. Using the interior lights
YARIS_HV_OM_Europe_OM52G76E
On
Off
■ Illuminated entry system
Vehicles without a smart entry & start system
The lights automatically turn on/off according to the power switch position,
whether the doors are locked/unloc ked, and whether the doors are opened/
closed.
Vehicles with a smart entry & start system
The lights automatically turn on/off according to power switch mode, the pres-
ence of the electronic key, whether the doors are locked/unlocked, and
whether the doors are opened/closed.
■ To prevent 12-volt battery from being discharged
If the following lights remain on when the door is not fully closed, the lights will
go off automatically after 20 minutes:
● Interior light (when the switch is in the door position)
● Power switch light
● Footwell lights
■ Customization
Settings (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features P. 475)
Personal lights
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7Maintenance and care
YARIS_HV_OM_Europe_OM52G76E
7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior .......... 318
Cleaning and protecting
the vehicle interior ........... 322
7-2. Maintenance
Maintenance
requirements.................... 325
7-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ...................... 328
Hood .................................. 331
Positioning a floor jack ....... 333
Engine compartment.......... 335
12-volt battery .................... 342
Tires ................................... 348
Tire inflation pressure ........ 362
Wheels ............................... 364
Air conditioning filter .......... 367
Wireless remote control/
electronic key battery....... 369
Checking and replacing
fuses ................................ 373
Light bulbs ......................... 378

3457-3. Do-it-yourself maintenance
7
Maintenance and care
YARIS_HV_OM_Europe_OM52G76E
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, obser ve the following precautions before
recharging:
● If recharging with the 12-volt battery installed on the vehicle, be sure to dis-
connect the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the 12-volt battery.
■ When disconnecting the 12-volt battery terminals
Always disconnect the negative (-) terminal first.
■ After recharging/reconnecting the 12-volt battery
● Unlocking the doors using entry function of the smart entry & start system
may not be possible immediately after reconnecting the 12-volt battery. If
this happens, use the wireless remote control or the mechanical key to lock/
unlock the doors.
● Vehicles with a smart entry & start system: Start the hybrid system with the
power switch in ACCESSORY mode. The hybrid system may not start with
the power switch turned off. However, the hybrid system will operate nor-
mally from the second attempt.
● Vehicles with a smart entry & start system: 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 12-volt bat-
tery was disconnected. Make sure to turn off the power before disconnect
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 any authorized
Toyota dealer or repairer, or another duly qualified and equipped professional.