2012 TOYOTA YARIS HYBRID stop start

5
621 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79ETouch the Toyota emblem side of
the electronic key to the
“ENGINE START STOP” switch.
The “ENGINE START STOP”
switch will turn to IGNITION ON
mode.
When the smart entry & start system is deactivated in customization
setting, the “ENGINE START STOP” switch will turn to ACCESSORY
mode. Modes can be changed by pressing the “ENGINE START
STOP” switch with the brake pedal released. (The mode changes
each time the switch is pressed.)
Firmly depress the brake pedal and check that the smart entry
& start system indicator light (green) turns on.
Press the “ENGINE START STOP” switch.
In the event that the “ENGINE START STOP” switch still can-
not be operated, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
Vehicles with a multi-mode manual transmission
Ensure that the shift lever is in N and firmly depress the brake
pedal.
Touch the Toyota emblem side of
the electronic key to the
“ENGINE START STOP” switch.
The “ENGINE START STOP”
switch will turn to IGNITION ON
mode.

622 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79EWhen the smart entry & start system is deactivated in customization
setting, the “ENGINE START STOP” switch will turn to ACCESSORY
mode. Modes can be changed by pressing the “ENGINE START
STOP” switch with the brake pedal released. (The mode changes
each time the switch is pressed.)
Firmly depress the brake pedal and check that the smart entry
& start system indicator light (green) turns on.
Press the “ENGINE START STOP” switch.
In the event that the “ENGINE START STOP” switch still can-
not be operated, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
Vehicles with a manual transmission
Ensure that the shift lever is in N and depress the clutch
pedal.
Touch the Toyota emblem side of
the electronic key to the
“ENGINE START STOP” switch.
The “ENGINE START STOP”
switch will turn to IGNITION ON
mode.
When the smart entry & start system is deactivated in customization
setting, the “ENGINE START STOP” switch will turn to ACCESSORY
mode. Modes can be changed by pressing the “ENGINE START
STOP” switch with the clutch pedal released. (The mode changes
each time the switch is pressed.)
Firmly depress the clutch pedal and check that the smart
entry & start system indicator light (green) turns on.
Press the “ENGINE START STOP” switch.
In the event that the “ENGINE START STOP” switch still can-
not be operated, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.

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)

626 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
1ND-TV engine
Connect a positive jumper cable clamp to the positive (+) battery
terminal on your vehicle.
Connect the clamp on the other end of the positive cable to the
positive (+) battery terminal on the second vehicle.
Connect a negative cable clamp to the negative (-) battery termi-
nal on the second vehicle.
Connect the clamp at the other end of the negative cable to a
solid, stationary, unpainted metallic point away from the battery
and any moving parts as shown in the illustration.
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the battery of your vehicle.
Vehicles with a smart entry & start system: Open and close
any of the doors with the “ENGINE START STOP” switch
turned off.

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627 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
Vehicles without a smart entry & start system: Maintain the
engine speed of the second vehicle and turn the engine
switch to the “ON” position, then start the vehicle’s engine.
Vehicles with a smart entry & start system: Maintain the
engine speed of the second vehicle and turn the “ENGINE
START STOP” switch to IGNITION ON mode, then start the
vehicle’s engine.
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order from which they were con-
nected.
Once the engine starts, have the vehicle inspected at any autho-
rized Toyota dealer or repairer, or another duly qualified and
equipped professional as soon as possible.

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.

5
635
5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
If your vehicle overheats (except hybrid vehicle)
If your engine overheats:
Stop the vehicle in a safe place and turn off the air condi-
tioning system.
Check to see if steam is coming out from under the hood.
If you see steam:
Stop the engine. Carefully lift the hood after the steam sub-
sides and then restart the engine.
If you do not see steam:
Leave the engine running and carefully lift the hood.
Check to see if the cooling fan is operating.
If the fan is operating:
Wait until the high engine coolant temperature warning light
goes off and then stop the engine.
If the fan is not operating:
Stop the engine immediately and call any authorized Toyota
dealer or repairer, or another duly qualified and equipped
professional.
After the engine has cooled down sufficiently, check the
engine coolant level and inspect the radiator core (radiator)
for any leaks.
Gasoline engine

5
639
5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
If your vehicle overheats (hybrid vehicle)
Correction procedures
If the high engine coolant temperature warning light comes on
or flashes
Stop the vehicle in a safe place and turn off the air condition-
ing system.
Check to see if steam is coming out from the engine area.
If you see steam:
Stop the hybrid system. Carefully lift the hood after the steam
subsides and then restart the hybrid system.
If you do not see steam:
Leave the hybrid system operating and carefully lift the hood.
Check to see if the cooling fan is operating.
If the fan is operating:
Wait until the high engine coolant temperature warning light
goes off and then stop the hybrid system.
If the fan is not operating:
Stop the hybrid system immediately and call any authorized
Toyota dealer or repairer, or another duly qualified and
equipped professional.
The following may indicate that your vehicle is overheating:
The high engine coolant temperature warning light comes on or
flashes:
The engine may be overheating.
If the hybrid system overheat warning light comes on:
The power control unit may be overheating.
Follow the correction procedure as described below.