ECO mode TOYOTA YARIS 2012 Workshop Manual

491 4-3. Do-it-yourself maintenance
4
Maintenance and care
YARIS_F (including HV)_WE_52C79E
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.
Caution symbols
The meanings of each caution symbol on the top of the battery are
as follows:
No smoking, no naked
flames, no sparksBattery acid
Shield eyesNote operating
instructions
Keep away from childrenExplosive gas

492 4-3. Do-it-yourself maintenance
YARIS_F (including HV)_WE_52C79E
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.
CAUTION
Chemicals in the 12-volt battery
The 12-volt battery contains poisonous and corrosive sulfuric acid and may
produce hydrogen gas which is flammable and explosive. To reduce the risk
of death or serious injury, take the following precautions while working on or
near the 12-volt battery:
Do not cause sparks by touching the 12-volt battery terminals with tools.
Do not smoke or light a match near the 12-volt battery.
Avoid contact with eyes, skin and clothes.
Never inhale or swallow electrolyte.
Wear protective safety glasses when working near the 12-volt battery.
Keep children away from 12-volt battery.
Where to safely charge the 12-volt battery
Always charge the 12-volt battery in an open area. Do not charge the 12-volt
battery in a garage or closed room where there is insufficient ventilation.
When disconnecting the 12-volt battery terminals
Always disconnect the negative (-) terminal first. If the positive (+) terminal is
disconnected first and touches a surrounding metal surface sparks will be
produced, possibly starting a fire. It could also result in an electric shock or
serious injury.
How to recharge the 12-volt battery
Only perform a slow charge (3.5 A or less). The 12-volt battery may explode
if charged at a quicker rate.

496 4-3. Do-it-yourself maintenance
YARIS_F (including HV)_WE_52C79E
CAUTION
When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train as well as dan-
gerous handling characteristics, which may lead to an accident resulting in
death or serious injury.
Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
Do not use tire sizes other than those recommended by Toyota.
Do not mix differently constructed tires (radial, bias-belted or bias-ply
tires).
Do not mix summer, all season and snow tires.
Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
Vehicles with a compact spare tire: Do not tow if your vehicle has a com-
pact spare tire installed.

5When trouble arises
551
YARIS_F (including HV)_WE_52C79E
5-1. Essential information
Emergency flashers .......... 552
If your vehicle needs to
be towed ......................... 553
If you think something is
wrong .............................. 563
Fuel pump shut off system
(except hybrid vehicle
[gasoline engine only]).... 564
5-2. Steps to take in an
emergency
If a warning light turns on
or a warning buzzer
sounds... ........................ 565
If you have a flat tire
(vehicles with
a spare tire) .................... 582
If you have a flat tire
(vehicles with
an emergency tire
puncture repair kit).......... 594
If the engine will not start
(except hybrid vehicle).... 611
If the hybrid system will not
start (hybrid vehicle) ....... 614
If the shift lever cannot be
shifted from P (vehicles
with a hybrid transmission
or a Multidrive) ................ 616
If the shift lever cannot be
shifted (vehicles with
a multi-mode manual
transmission) .................. 617If you lose your keys ......... 618
If the electronic key does
not operate properly ....... 619
If the vehicle battery is
discharged
(except hybrid vehicle).... 624
If the vehicle’s 12-volt
battery is discharged
(hybrid vehicle) ............... 631
If your vehicle overheats
(except hybrid vehicle).... 635
If your vehicle overheats
(hybrid vehicle) ............... 639
If you run out of fuel and
the engine stalls
(diesel engine only) ........ 644
If the vehicle becomes
stuck ............................... 647
If your vehicle has to
be stopped in
an emergency ................. 650

558 5-1. Essential information
YARIS_F (including HV)_WE_52C79EFrom the rear
Vehicles with a hybrid transmis-
sion or a Multidrive: Use a towing
dolly under the front wheels.
Vehicles with a multi-mode man-
ual transmission or a manual
transmission: We recommend
using a towing dolly under the
front wheels.
Vehicles without a smart entry &
start system: When not using a
towing dolly, turn the engine
switch to the “ON” position (vehi-
cles with a multi-mode manual
transmission) or the “ACC” posi-
tion (vehicles with a manual
transmission) and shift the shift
lever to N.
Vehicles with a smart entry & start
system: When not using a towing
dolly, turn the “ENGINE START
STOP” switch to IGNITION ON
mode (vehicles with a multi-mode
manual transmission) or ACCES-
SORY mode (vehicles with a
manual transmission) and shift
the shift lever to N.

5
567 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79EThe following warning indicates the possibility of damage to the
vehicle that may lead to an accident. Immediately stop the vehicle
in a safe place and take the specified steps to correct the sus-
pected problem.
Immediately stop the vehicle in a safe place and take the specified
steps to correct the suspected problem.
Warning lightWarning light/DetailsCorrection procedure
(Comes on)
(if equipped)Multi-mode manual trans-
mission warning light
Indicates a malfunction in
the multi-mode manual
transmission system. Have the system checked
by any authorized Toyota
dealer or repairer, or
another duly qualified and
equipped professional.
Multi-mode manual trans-
mission warning light
(warning buzzer)
Indicates a malfunction in
the multi-mode manual
transmission system and
that the clutch has become
hot due to excessive load. Pull over and shift the shift
lever to N. Wait for about 15
minutes for the clutch to
cool down. Have the system
checked by any authorized
Toyota dealer or repairer, or
another duly qualified and
equipped professional.
Warning lightWarning light/DetailsCorrection procedure
(Flashes)
(if equipped)Heat clutch warning light
(warning buzzer)
Indicates that the clutch
has become hot, but does
not indicate a malfunction
in the multi-mode manual
transmission system.Pull over and shift the shift
lever to N. Wait for about 15
minutes for the clutch to
cool down.

5
577 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
Once 3 times
(Flashes
in
yellow)Smart entry & start system
indicator light
Except hybrid vehicle
Indicates that a door other
than the driver’s door has
been opened and closed
with the “ENGINE START
STOP” switch in any mode
other than off and the elec-
tronic key outside of the
detection area.
Hybrid vehicle
Indicates that a door other
than the driver’s door has
been opened and closed
with the “POWER” switch in
any mode other than off and
the electronic key outside of
the detection area.Confirm the
location of the
electronic key.
Once
Continuous
(5
seconds)
(Flashes
in
yellow)Smart entry & start system
indicator light
Except hybrid vehicle
An attempt was made to exit
the vehicle with the elec-
tronic key and lock the
doors without first turning
the “ENGINE START STOP”
switch off.
Hybrid vehicle (vehicles
with a smart entry & start
system only)
An attempt was made to exit
the vehicle with the elec-
tronic key and lock the
doors without first turning
the “POWER” switch off.Except hybrid
vehicle
Turn the
“ENGINE
START STOP”
switch off and
lock the doors
again.
Hybrid vehicle
Turn the
“POWER”
switch off and
lock the doors
again.
Interior
buzzerExterior
buzzerWarning
lightWarning light/DetailsCorrection
procedure

580 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
Passenger detection sensor and passenger seat belt reminder
If luggage is placed on a passenger seat, the passenger detection sensor
may cause the warning light to flash even if a passenger is not sitting in
the seat.
If a cushion is placed on the seat, the sensor may not detect a passen-
ger, and the warning light may not operate properly.
Electric power steering warning light (warning buzzer)
Except hybrid vehicle: When the battery charge becomes insufficient or the
voltage temporarily drops, the electric power steering system warning light
may come on and the warning buzzer may sound.
Hybrid vehicle: When the 12-volt battery charge becomes insufficient or the
voltage temporarily drops, the electric power steering system warning light
may come on and the warning buzzer may sound.
If the malfunction indicator lamp comes on while driving
For some models, the malfunction indicator lamp will come on if the fuel tank
becomes completely empty. If the fuel tank is empty, refuel the vehicle
immediately. The malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional as soon as possible.
If the engine oil change reminder light flashes (diesel engine with a
DPF system)
Repeated short trips and/or low-speed driving may cause the oil to degrade
sooner than usual, regardless of the actual distance driven. If this happens,
the engine oil change reminder light will flash.
Engine oil change reminder light comes on (diesel engine only)
Vehicles without a DPF system:
Replace the engine oil and oil filter when the engine oil change reminder
light does not come on even if you have driven over 40000 km (25000 miles)
after the engine oil was changed.
There is a possibility that the engine oil change reminder light has been illu-
minated when you have driven less than 40000 km (25000 miles) based on
a usage or driving condition.

612 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
Emergency start function (vehicles with a smart entry & start system)
When the engine does not start, the following steps can be used as
an interim measure to start the engine if the “ENGINE START STOP”
switch is functioning normally:
Vehicles with a Multidrive
Set the parking brake.
Shift the shift lever to P.
Turn the “ENGINE START STOP” switch to ACCESSORY
mode.
Push and hold the “ENGINE START STOP” switch for about
15 seconds while depressing the brake pedal firmly.
Even if the engine 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 pro-
fessional.
The starter motor does not turn over, 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 battery terminals may be disconnected.
The battery may be discharged. (P. 624)
There may be a malfunction in the steering lock system (vehi-
cles with a smart entry & start system).
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
613 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79EVehicles with a multi-mode manual transmission
Set the parking brake.
Put the shift lever in N.
Turn the “ENGINE START STOP” switch to ACCESSORY
mode.
Push and hold the “ENGINE START STOP” switch for about
15 seconds while depressing the brake pedal firmly.
Even if the engine 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 pro-
fessional.
Vehicles with a manual transmission
Set the parking brake.
Put the shift lever in N.
Turn the “ENGINE START STOP” switch to ACCESSORY
mode.
Push and hold the “ENGINE START STOP” switch for about
15 seconds while depressing the brake pedal and clutch
pedal firmly.
Even if the engine 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 pro-
fessional.