key battery TOYOTA YARIS 2012 Owner's Guide

578 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
Once(Flashes
in yellow
for 15
sec-
onds.)Smart entry & start system
indicator light
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 light
An attempt was made to
drive when the regular key
was not inside the vehicle.Confirm that the
electronic key is
inside the vehi-
cle.
Once(Flashes
in yel-
low for
15 sec-
onds.)Smart entry & start system
indicator light
Indicates that the electronic
key battery is low.Replace the
battery.
(P. 505)
Once(Flashes
quickly
in green
for 15
sec-
onds.)Smart entry & start system
indicator light
Indicates that the steering
lock has not been released.Release the
steering lock.
(P. 234)
Interior
buzzerExterior
buzzerWarning
lightWarning light/DetailsCorrection
procedure

614
5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
If the hybrid system will not start (hybrid vehicle)
Reasons for the hybrid system not starting vary depending on the
situation. Check the following and perform the appropriate proce-
dure:
The hybrid system will not start even though the correct
starting procedure is being followed. (P. 238, 243)
One of the following may be the cause of the problem:
Vehicles with an electronic key: The electronic key may not be
functioning properly. (P. 619)
There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. (P. 151)
There may be a malfunction in the immobilizer system.
(P. 155)
There may be a malfunction in the steering lock system.
The hybrid system may be malfunctioning due to an electrical
problem such as an open circuit or a blown fuse. However,
depending on the type of malfunction, an interim measure is
available to start the hybrid system. (P. 615)
The interior lights and headlights are dim, or the horn does
not sound or sounds at a low volume.
One of the following may be the cause of the problem:
The 12-volt battery may be discharged. (P. 631)
The 12-volt battery terminal connections may be loose or cor-
roded.

5
615 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
Emergency start function (vehicles with an electronic key)
When the hybrid system does not start, the following steps can be
used as an interim measure to start the hybrid system if the
“POWER” switch is functioning normally:
Shift the shift lever to P.
Set the parking brake.
Turn the “POWER” switch to ACCESSORY mode.
Press and hold the “POWER” switch for about 15 seconds
while depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Have the vehicle inspected by any
authorized Toyota dealer or repairer, or another duly qualified and
equipped professional.
The Interior lights and headlights do not turn on, or the horn
does not sound.
One of the following may be the cause of the problem:
One or both of the 12-volt battery terminals may be discon-
nected.
The 12-volt battery may be discharged. (P. 631)
Contact any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional if the problem cannot be repaired,
or if repair procedures are unknown.

5
619
5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
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
Starting the hybrid system (hybrid vehicle)
Vehicles with a hybrid transmission
Ensure that the shift lever is in P and firmly depress the brake
pedal.
: 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.

5
623 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
Stopping the engine (except hybrid vehicle)
Vehicles with a Multidrive: Shift the shift lever to P and press the “ENGINE
START STOP” switch as you normally do when stopping the engine.
Except vehicles with a Multidrive: Shift the shift lever to N and press the
“ENGINE START STOP” switch as you normally do when stopping the
engine.
Stopping the hybrid system (hybrid vehicle)
Shift the shift lever to P and press the “POWER” switch as you normally do
when stopping the hybrid system.
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. 505)
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. 682)

628 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
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.

632 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
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 discharge
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.
Precautions when the 12-volt battery is discharged
In some cases, it may not be possible to unlock the doors using the smart
entry & start system immediately after the 12-volt battery has been dis-
connected and reconnected. Use the wireless remote control or the
mechanical key to lock or unlock the doors.
Open and close any of the doors of your vehicle with the
engine switch (vehicles without an electronic key) or
“POWER” switch (vehicles with an electronic key) off.
Maintain the engine speed of the second vehicle and start
the hybrid system of your vehicle by turning the engine
switch (vehicles without an electronic key) to “ON” position
or “POWER” switch (vehicles with an electronic key) to ON
mode.
Make sure the “READY” indicator comes on. If the indicator
does not come on, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped profes-
sional.
Once the hybrid system has started, remove the jumper
cables in the exact reverse order from which they were con-
nected.
Once the hybrid system starts, have the vehicle inspected at any
authorized Toyota dealer or repairer, or another duly qualified and
equipped professional as soon as possible.

5
633 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
The hybrid system may not start on the first attempt after the 12-volt bat-
tery has recharged but will start normally after the second attempt. This is
not a malfunction.
Vehicles with an electronic key: The “POWER” switch mode is memo-
rized by the vehicle. When the 12-volt battery is reconnected, the system
will return to the mode it was in before the 12-volt battery was dis-
charged. Before disconnecting the 12-volt battery, turn the “POWER”
switch off.
If the “POWER” switch was in ACCESSORY or ON mode before the 12-
volt battery was discharged, the audio system and/or air conditioning
system may operate when the 12-volt battery is reconnected.
Charging the 12-volt battery
The electricity stored in the 12-volt battery 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 vehicle is left for a long time, the
12-volt battery may discharge, and the hybrid system may be unable to start.
(The 12-volt battery recharges automatically while the hybrid system is oper-
ating.)
CAUTION
Avoiding 12-volt battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the 12-volt battery:
Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with anything other than the intended ter-
minal.
Do not allow the other end of the jumper cable connected to the “+” termi-
nal to come into contact with any other parts or metal surfaces in the area,
such as brackets or unpainted metal.
Do not allow the + and - clamps of the jumper cables to come into contact
with each other.
Do not smoke, use matches, cigarette lighters or allow open flame near
the 12-volt battery.

688 Alphabetical index
YARIS_F (including HV)_WE_52C79E
Brake
Fluid ...................................... 671
Parking brake ........................ 271
Brake assist.............................. 326
Break-in tips ............................. 209
Brightness control
Instrument panel light
control ................................. 291
Care
Exterior.................................. 446
Interior ................................... 451
Seat belts .............................. 452
CD player .................................. 385
Chains ....................................... 338
Child-protectors ....................... 117
Child restraint system
Baby seats, definition ............ 181
Baby seats, installation ......... 190
Child seats, definition ............ 181
Child seats, installation ......... 190
Installing CRS with ISOFIX
rigid anchors ....................... 194
Installing CRS with seat
belts .................................... 191
Installing CRS with top
straps .................................. 195
Junior seats, definition .......... 181
Junior seats, installation........ 190Child safety
Airbag precautions ................ 172
Battery precautions ....... 484, 629
Child-protectors .................... 117
Child restraint system ........... 181
How your child should wear
the seat belt ........................ 136
Installing child restraints ....... 190
Power window lock switch .... 147
Power window precautions ... 150
Removed key battery
precautions ......................... 509
Seat belt precautions ............ 137
Seat heater
precautions ......................... 435
12-volt battery
precautions ................. 492, 634
Cigarette lighter ....................... 431
Cleaning
Exterior ................................. 446
Interior................................... 451
Seat belts .............................. 452
Clock ......................................... 428
Condenser ................................ 481
Cooling system
Engine overheating ............... 635
Hybrid system overheating ... 639
Cruise control
Cruise control........................ 311
Indicator ................................ 311
Cup holders.............................. 422
Curtain shield airbags ............. 166
Customizable features ............ 682
C

689 Alphabetical index
YARIS_F (including HV)_WE_52C79E
Daytime running light
system .................................... 297
Deck board ............................... 441
Defogger
Rear window ......................... 374
Side mirror ............................ 374
Dimension ................................ 654
Display
Trip information ..................... 286
Do-it-yourself maintenance .... 457
Doors
Back door .............................. 119
Door glasses ......................... 147
Door lock ................. 69, 105, 114
Double locking system .......... 162
Side doors ............................. 114
Side mirrors........................... 144
Double locking system............ 162
DPF
Diesel Particulate Filter
system ................................ 334
Warning light ......................... 570
Driver’s seat belt reminder
light ......................................... 570
Driving
Break-in tips .......................... 209
Correct posture ..................... 164
Procedures............................ 204
Winter driving tips ................. 338Electric power steering ........... 326
Electronic key
If the electronic key does
not operate properly ........... 619
Replacing the battery ............ 505
Emergency flashers
Switch ................................... 552
Emergency, in case of
If the electronic key does not
operate properly ................. 619
If the engine will not start ...... 611
If the hybrid system will
not start .............................. 614
If the shift lever cannot be
shifted ................................. 617
If the shift lever cannot be
shifted from P ..................... 616
If the vehicle has a
discharged battery .............. 624
If the vehicle has a
discharged 12-volt
battery ................................ 631
If the warning buzzer
sounds ................................ 565
If the warning light
turns on .............................. 565
If you have a flat tire .... 582, 594
If you lose your keys ............. 618
If you run out of fuel and
the engine stalls ................. 644
If you think something is
wrong.................................. 563
If your vehicle becomes
stuck ................................... 647
If your vehicle has to be
stopped in an
emergency.......................... 650
If your vehicle needs to be
towed .................................. 553
If your vehicle
overheats.................... 635, 639DE