remote control TOYOTA YARIS 2014 Owner's Manual
Page 443 of 712
4Maintenance and care
443
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4-1. Maintenance and care
Cleaning and protecting 
the vehicle exterior .........  444
Cleaning and protecting 
the vehicle interior ..........  449
4-2. Maintenance
Maintenance 
requirements...................  452
4-3. Do-it-yourself maintenance
Do-it-yourself service 
precautions .....................  455
Hood .................................  460
Positioning a floor jack ......  462
Engine compartment.........  465
12-volt battery 
(hybrid vehicle) ...............  484
Tires ..................................  490
Tire inflation pressure .......  494
Wheels ..............................  496
Air conditioning filter .........  498
Wireless remote 
control/electronic key 
battery.............................  501
Checking and replacing 
fuses ...............................  506
Light bulbs ........................  531 
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480 4-3. Do-it-yourself maintenance
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Before recharging
When recharging, the battery produces hydrogen gas which is flammable
and explosive. Therefore, observe the following before recharging:
If recharging with the battery installed on the vehicle, be sure to discon-
nect the ground cable.
Make sure the power switch on the charger is off when connecting and
disconnecting the charger cables to the battery.
After recharging/reconnecting the battery (vehicles with a smart entry
& start system)
Unlocking the doors using the smart entry & start system may not be
possible immediately after reconnecting the battery. If this happens, use
the wireless remote control or the mechanical key to lock/unlock the
doors.
Start the engine with the “ENGINE START STOP” switch in ACCES-
SORY mode. The engine may not start with the “ENGINE START STOP”
switch turned off. However, the engine will operate normally from the sec-
ond attempt.
The “ENGINE START STOP” switch mode is recorded by the vehicle. If
the battery is reconnected, the vehicle will return the “ENGINE START
STOP” switch mode to the status it was in before the battery was discon-
nected. Make sure to turn off the engine before disconnect the battery.
Take extra care when connecting the battery if the “ENGINE START
STOP” switch mode prior to discharge is unknown.
If the engine will not start even after multiple attempts, contact any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional. 
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487 4-3. Do-it-yourself maintenance
4
Maintenance and care
YARIS_F(including HV)_WE_52E26E
Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, observe the following precautions before
recharging:
If recharging with the 12-volt battery installed on the vehicle, be sure to
disconnect the ground cable.
Make sure the power switch on the charger is off when connecting and
disconnecting 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 the smart entry & start system may not be
possible immediately after reconnecting the 12-volt battery. If this hap-
pens, use the wireless remote control or the mechanical key to lock/
unlock the doors.
Vehicles with an electronic key: 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 normally from the second attempt.
Vehicles with an electronic key: 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 discon-
nect 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 autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional. 
Page 501 of 712
501
4-3. Do-it-yourself maintenance
4
Maintenance and care
YARIS_F(including HV)_WE_52E26E
Wireless remote control/electronic key batter y
Replace the battery with a new one if it is depleted.
You will need the following items:
Flathead screwdriver
Lithium battery CR2016 (vehicles without a smart entry & start
system or a push-button start system), or CR2032 (vehicles
with a smart entry & start system or a push-button start sys-
tem)
Replacing the wireless remote control battery
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver
with a tape.
Remove the module. 
Page 504 of 712
504 4-3. Do-it-yourself maintenance
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Use a CR2016 (vehicles without a smart entry & start system or a push-
button start system) or CR2032 (vehicles with a smart entry & start sys-
tem or a push-button start system) lithium battery
Batteries can be purchased at any authorized Toyota dealer or repairer,
or another duly qualified and equipped professional, local electrical appli-
ance shops or camera stores.
Replace only with the same or equivalent type recommended by the
manufacturer.
Dispose of used batteries according to local laws.
If the key battery is depleted
The following symptoms may occur:
The smart entry & start system (if equipped), push-button start system (if
equipped) and wireless remote control will not function properly.
The operational range will be reduced.
Remove the battery cover.
Remove the depleted battery.
Insert a new battery with the
“+” terminal facing up. 
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505 4-3. Do-it-yourself maintenance
4
Maintenance and care
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CAUTION
Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.
Certification for the lithium battery
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUC-
TIONS
NOTICE
For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
Always work with dry hands.
Moisture may cause the battery to rust.
Do not touch or move any other component inside the remote control.
Do not bend either of the battery terminals. 
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517 4-3. Do-it-yourself maintenance
4
Maintenance and care
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*1: Gasoline engine
*2: Diesel engine
*3: Vehicles with a 1NR-FE engine equipped with a Stop & Start system
*4: On some models 23 STR LOCK 20 A Steering lock system
24 ECU-B NO.1 5 AMain body ECU, smart entry & start 
system, VSC
*4
25 DOME 15 AInterior lights, audio system, 
VSC*4
26 ETCS 10 AMultiport fuel injection system/
sequential multiport fuel injection 
system
27 HAZ 10 A Turn signal lights
28 AM2 7.5 AMultiport fuel injection system/
sequential multiport fuel injection 
system, smart entry & start system, 
stop & start system, starting sys-
tem, multi-mode manual transmis-
sion
29 ECU-B NO.2 5 AGauge and meters, power door 
lock, wireless remote control, Stop 
& Start system, smart entry & start 
system, multi-mode manual trans-
mission, air conditioning system
30 ALT-S 7.5 A
31 R/I 50 AEFI MAIN, ECD MAIN, EFI NO.2, 
EFI NO.3, IG2, IGN, MET, HORN
32 SPARE 20 A Spare fuse
33 SPARE 30 A Spare fuse
34 MIR-HTR 10 A Outside rear view mirror defogger
35 ID/UP 7.5 AMultiport fuel injection system/
sequential multiport fuel injection 
system
FuseAmpereCircuit 
Page 624 of 712
624
5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52E26E
If the electronic key does not operate properly
Unlocking and locking the doors
Use the mechanical key (P. 66)
in order to perform the following
operations:
Unlocks all the doors
Locks all the doors
: If equipped
If communication between the electronic key and vehicle is inter-
rupted (P. 78) or the electronic key cannot be used because the
battery is depleted, the smart entry & start system and wireless
remote control cannot be used. In such cases, the doors can be
opened and the engine (except hybrid vehicle) or hybrid system
(hybrid vehicle) can be started by following the procedure below. 
Page 628 of 712
628 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52E26E
Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted. 
(P. 501)
Changing “ENGINE START STOP” switch modes (except hybrid vehi-
cle)
Vehicles with a Multidrive or multi-mode manual transmission: Release
the brake pedal and press the “ENGINE START STOP” switch in 
above. (P. 625, 626)
The engine does not start and modes will be changed each time the
switch is pressed. (P. 230)
Vehicles with a manual transmission: Release the clutch pedal and press
the “ENGINE START STOP” switch in 
 above. (P. 626)
The engine does not start and modes will be changed each time the
switch is pressed. (P. 230)
Changing “POWER” switch modes (hybrid vehicle)
Release the brake pedal and press the “POWER” switch in   above.
(P. 627)
The hybrid system does not start and modes will be changed each time the
switch is pressed. (P. 243)
If the doors cannot be locked or unlocked by the smart entry & start
system
Lock and unlock the doors by the mechanical key or wireless remote control.
When the electronic key does not work properly
Make sure that the smart entry & start system has not been deactivated in
the customization setting. If it is off, turn the function on.
(Customizable features P. 689) 
Page 633 of 712
5
633 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52E26E
Starting the engine when the battery is discharged (vehicles with a
Multidrive)
The engine cannot be started by push-starting.
To prevent battery discharge
Turn off the headlights and the audio system while the engine 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.
Charging the battery
The electricity stored in the battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of cer-
tain electrical appliances. If the vehicle is left for a long time, the battery may
discharge, and the engine may be unable to start. (The battery recharges
automatically during driving.)
Precautions when the battery is discharged (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 battery is discharged. Use the wireless
remote control or the mechanical key to lock or unlock the doors.
The engine may not start on the first attempt after the battery has
recharged but will start normally after the second attempt. This is not a
malfunction.
The “ENGINE START STOP” switch mode is memorized by the vehicle.
When the battery is reconnected, the system will return to the mode it
was in before the battery was discharged. Before disconnecting the bat-
tery, turn the “ENGINE START STOP” switch off. 
If you are unsure what mode the “ENGINE START STOP” switch was in
before the battery discharged, be especially careful when reconnecting
the battery.