2015 TOYOTA YARIS HATCHBACK key battery

3957-3. Do-it-yourself maintenance
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Maintenance and care
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Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
Vehicles with a smart entry & start system
Take out the mechanical key.
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver with
a tape.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
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3967-3. Do-it-yourself maintenance
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■Use a CR2016 (vehicles without a smart entry & start system) or CR2032
(vehicles with a smart entry & start system) lithium battery
● Batteries can be purchased at any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional, local electrical appliance
shops or camera stores.
● Replace only with the same or equivalent type recommended by the manu-
facturer.
● 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) and wireless remote control will
not function properly.
● The operational range will be reduced.
WARNING
■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
CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN
INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO
THE INSTRUCTIONS
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.

419
8When trouble arises
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8-1. Essential information
Emergency flashers ........... 420
If your vehicle has to
be stopped in
an emergency .................. 421
8-2. Steps to take in
an emergency
If your vehicle needs to
be towed .......................... 423
If you think something is
wrong ............................... 429
Fuel pump shut off system
(gasoline engine only) ..... 430
If a warning light turns on
or a warning buzzer
sounds ............................. 431
If you have a flat tire
(vehicles with
a spare tire) ..................... 445
If you have a flat tire
(vehicles with
an emergency tire
puncture repair kit)........... 460
If the engine will not start ... 475
If the shift lever cannot be
shifted from P (vehicles
with a Multidrive).............. 477
If the electronic key does
not operate properly
(vehicles with a smart
entry & start system)........ 478
If the vehicle battery is
discharged ....................... 480
If your vehicle overheats .... 485
If you run out of fuel and
the engine stalls
(diesel engine only) ......... 489
If the vehicle becomes
stuck ................................ 491

4448-2. Steps to take in an emergency
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Once(Flashes in yellow for 15 seconds.)
Smart entry & start system indicator
Indicates that the electronic key is not
present when attempting to start the
engine.
 Confirm the location of the electronic
key.
9 times(Flashes in yellow)
Smart entry & start system indicator
An attempt was made to drive when the
regular key was not inside the vehicle.
 Confirm that the electronic key is inside
the vehicle.
Once(Flashes in yellow for 15 seconds.)
Smart entry & start system indicator
Indicates that the electronic key battery is
low.
 Replace the battery. (P. 394)
Once(Flashes quickly in green for 15 seconds.)
Smart entry & start system indicator
Indicates that the steering lock has not
been released.
 Release the steering lock. (P. 190)
Once(Flashes in yellow for 30 seconds.)
Smart entry & start system indicator
• When the doors were unlocked with the
mechanical key and then the engine
switch was pressed, the electronic key
could not be detected in the vehicle.
• The electronic key could not be detected
in the vehicle even after the engine switch
was pressed two consecutive times.
 Vehicles with a Multidrive:
Touch the electronic key to the engine
switch while depressing the brake
pedal.
 Vehicles with a manual transmission:
Touch the electronic key to the engine
switch while depressing the clutch
pedal.
Interior
buzzer
Exterior
buzzer
Warning
lightWarning light/Details/Actions

4788-2. Steps to take in an emergency
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If the electronic key does not operate properly
(vehicles with a smart entr y & start system)
Use the mechanical key ( P. 106)
in order to perform the following
operations:
Unlocks all the doors
Locks all the doors
Vehicles with a Multidrive:
Ensure that the shift lever is in P and depress the brake pedal.
Vehicles with a manual transmission:
Ensure that the shift lever is in N and depress the clutch pedal.
If communication between the electronic key and vehicle is
interrupted ( P. 132) 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 can be started by following
the procedure below.
Locking and unlocking the doors
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Starting the engine
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4798-2. Steps to take in an emergency
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When trouble arises
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Touch the Toyota emblem side
of the electronic key to the
engine switch.
The engine switch will turn to IGNI-
TION ON mode.
When the smart entry & start sys-
tem is deactivated in customization
setting, the engine switch will turn
to ACCESSORY mode.
Firmly depress the brake pedal (Multidrive) or clutch pedal (manual
transmission) and check that (green) turns on.
Press the engine switch.
In the event that the engine still cannot be started, contact any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped
professional.
■ Stopping the engine
Shift the shift lever to P (Multidrive) or N (manual transmission) and press the
engine switch as you normally do when stopping the engine.
■ 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. 394)
■ Changing engine switch modes
Release the brake pedal (Multidrive) or clutch pedal (manual transmission)
and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is
pressed. ( P. 188)
■ 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. 515)
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4838-2. Steps to take in an emergency
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When trouble arises
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Once the vehicle’s engine has started, remove the jumper cables in
the exact reverse order from which they were connected.
Once the engine starts, have the vehicle inspected at any authorized
Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional as soon as possible.
■ Starting the engine when the battery is discharged (vehicles with a Multi-
drive)
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 running
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 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 battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery dis-
charged, be especially careful when reconnecting the battery.
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522What to do if... (Troubleshooting)
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What to do if... (Troubleshooting)
●If you lose your keys, new genuine keys can be made by any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional. ( P. 106)
●If you lose your electronic keys, the risk of vehicle theft increases signifi-
cantly. Contact any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional immediately. ( P. 115)
●Is the key battery weak or depleted? (P. 394)
●Vehicles with a smart entry & start system:
Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. ( P. 188)
●Vehicles with a smart entry & start system:
Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of the radio
wave. ( P. 107, 132)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. ( P. 121)
If you have a problem, check the following before contacting any
authorized Toyota dealer or repairer, or another duly qualified
and equipped professional.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened