light TOYOTA YARIS HYBRID 2012 Repair Manual

235 2-1. Driving procedures
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YARIS_F (including HV)_WE_52C79E
Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be sus-
pended if the engine is turned on and off repeatedly in a short period of time.
In this case, refrain from operating the engine. After about 10 seconds, the
steering lock motor will resume functioning.
When the smart entry & start system indicator light flashes in yellow
The system may be malfunctioning. Have the vehicle inspected by any
authorized Toyota dealer or repairer, or another duly qualified and equipped
professional immediately.
If the electronic key battery is depleted
P. 505
Operation of the “ENGINE START STOP” switch
When operating the “ENGINE START STOP” switch, one short, firm press is
enough. If the switch is pressed improperly, the engine may not start or the
“ENGINE START STOP” switch mode may not change. It is not necessary to
press and hold the switch.
If the smart entry & start system has been deactivated in a customized
setting
P. 682

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NOTICE
To prevent battery discharge
Do not leave the “ENGINE START STOP” switch in ACCESSORY or IGNI-
TION ON mode for long periods of time without the engine running.
If the smart entry & start system indicator light (green) is illuminated, the
“ENGINE START STOP” switch is not off. When exiting the vehicle,
always check that the “ENGINE START STOP” switch is off.
On vehicles with a Multidrive, do not stop the engine when the shift lever is
in a position other than P. If the engine is stopped in another shift lever
position, the “ENGINE START STOP” switch will not be turned off but
instead be turned to ACCESSORY mode. If the vehicle is left in ACCES-
SORY mode, battery discharge may occur.
When starting the engine
Do not race a cold engine.
If the engine becomes difficult to start or stalls frequently, have your vehi-
cle checked by any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional immediately.
Symptoms indicating a malfunction with the “ENGINE START STOP”
switch
If the “ENGINE START STOP” switch seems to be operating somewhat dif-
ferently than usual, such as the switch sticking slightly, there may be a mal-
function. Contact any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional immediately.

238
2-1. Driving procedures
YARIS_F (including HV)_WE_52C79E
Engine (ignition) switch (hybrid vehicle [vehicles without an electronic key])
Starting the hybrid system
Check that the parking brake is set.
Check that the shift lever is set in P.
Firmly depress the brake pedal.
Turn the engine switch to the
“START” position to start the
hybrid system.
Continue depressing the brake
pedal until the hybrid system is
completely started.
Check that the “READY” indicator is on.
If the “READY” indicator changes from a flashing light to a solid
light and a beep sound, the hybrid system is starting normally.
The vehicle will not move when the “READY” indicator is off.
The vehicle can move when the “READY” indicator is on even if
the engine is stopped. (The gasoline engine starts or stops auto-
matically in accordance with the state of the vehicle.)

241 2-1. Driving procedures
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When the steering lock cannot be released
If the “READY” indicator does not come on
If the “READY” indicator does not come on when you turning the engine
switch to the “START” position with the shift lever in P and the brake pedal
depressed, contact any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional immediately.
If the hybrid system is malfunctioning
P. 566568
Key reminder function
A buzzer sounds if the driver’s door is opened while the engine switch is in
the “ACC” or “LOCK” position to remind you to remove the key.
CAUTION
When starting the hybrid system
Always start the hybrid system while sitting in the driver’s seat. Do not
depress the accelerator pedal while starting the hybrid system under any cir-
cumstances.
Doing so may cause an accident resulting in death or serious injury.
Caution when driving
Do not turn the engine switch to the “LOCK” position while driving. If, in an
emergency, you must turn the hybrid system off while the vehicle is moving,
turn the engine switch only to the “ACC” position to stop the hybrid system.
An accident may result if the hybrid system is stopped while driving.
(P. 650)
When starting the hybrid system, the
engine switch may seem stuck in the
“LOCK” position. To free it, turn the key
while turning the steering wheel slightly
left and right.

243
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When driving
YARIS_F (including HV)_WE_52C79E
Power (ignition) switch (hybrid vehicle [vehicles with an electronic key])
Performing the following operations when carrying the electronic
key on your person starts the hybrid system or changes “POWER”
switch modes.
Starting the hybrid system
Check that the parking brake is set.
Check that the shift lever is set in P.
If the shift lever is not set in P, the hybrid system may not be
started. ( P. 252)
Firmly depress the brake pedal.
The smart entry & start system indicator light (green) will turn on.
If the indicator light does not turn on, the hybrid system cannot be
started.
Press the “POWER” switch.
Continue depressing the brake
pedal until the hybrid system is
completely started.
The hybrid system can be
started from any “POWER”
switch mode.

244 2-1. Driving procedures
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Check that the “READY” indicator is on.
If the “READY” indicator changes from a flashing light to a solid
light and a beep sound, the hybrid system is starting normally.
The vehicle will not move when the “READY” indicator is off.
The vehicle can move when the “READY” indicator is on even if
the engine is stopped. (The gasoline engine starts or stops auto-
matically in accordance with the state of the vehicle.)
Stopping the hybrid system
Stop the vehicle completely.
Shift the shift lever to P.
Set the parking brake. (P. 271)
Press the “POWER” switch.
Slowly release the brake pedal and check that the
“READY” indicator is off.

245 2-1. Driving procedures
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Changing “POWER” switch modes
Modes can be changed by pressing the “POWER” switch with
brake pedal released. (The mode changes each time the switch is
pressed.)
Off
*
The emergency flashers can
be used.
The smart entry & start system
indicator light (green) is off.
ACCESSORY mode
Some electrical components
such as the audio system can
be used.
The smart entry & start system
indicator light (green) flashes
slowly.
ON mode
All electrical components can
be used.
The smart entry & start system
indicator light (green) flashes
slowly.
*: If the shift lever is in a position
other than P when turning off
the hybrid system, the
“POWER” switch will be turned
to ACCESSORY mode, not to
off.

246 2-1. Driving procedures
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When stopping the hybrid system with the shift lever in a
position other than P
If the hybrid system is stopped with the shift lever in a position other
than P, the “POWER” switch will not be turned off but instead be
turned to ACCESSORY mode. Perform the following procedure to
turn the switch off:
Check that the parking brake is set.
Shift the shift lever to P.
Check that the smart entry & start system indicator light
(green) flashes slowly and then press the “POWER” switch
once.
Check that the smart entry & start system indicator light
(green) is off.
Auto power off function
When the shift lever is in P, if the vehicle is left in ACCESSORY or ON mode
with the hybrid system not operating for more than 20 minutes (ACCES-
SORY mode) or one hour (ON mode), the “POWER” switch will automati-
cally turn off. However, this function cannot entirely prevent 12-volt battery
discharge. Do not leave the vehicle with the “POWER” switch in ACCES-
SORY or ON mode for long periods of time when the hybrid system is not
operating.
Sounds and vibrations specific to a hybrid vehicle
P. 5 1
Electronic key battery depletion
P. 8 1
When the ambient temperature is low, such as during winter driving
conditions
It may take time until the “READY” indicator comes on.
Conditions affecting operation
P. 7 8

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Notes for the entry function
P. 7 9
If the hybrid system does not start
The immobilizer system may not have been deactivated. (P. 155)
Contact any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional.
Steering lock
After turning the “POWER” switch off and opening and closing the doors, the
steering wheel will be locked due to the steering lock function. Operating the
“POWER” switch again automatically cancels the steering lock.
When the steering lock cannot be released
Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be sus-
pended if the hybrid system is turned on and off repeatedly in a short period
of time. In this case, refrain from operating the hybrid system. After about 10
seconds, the steering lock motor will resume functioning.
Check that the shift lever is securely set
in P. The hybrid system may not start if
the shift lever is displaced out of P. The
smart entry & start system indicator light
(green) will flash quickly.
The smart entry & start system indicator
light (green) will flash quickly.
Check that the shift lever is set in P. Press
the “POWER” switch while turning the
steering wheel left and right.

249 2-1. Driving procedures
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YARIS_F (including HV)_WE_52C79E
CAUTION
Stopping the hybrid system in an emergency
If you want to stop the hybrid system in an emergency while driving the vehi-
cle, press and hold the “POWER” switch for more than 3 seconds, or press it
briefly 3 times or more in succession. (P. 650)
However, do not touch the “POWER” switch while driving except in an emer-
gency. Turning the hybrid system off while driving will not cause loss of
steering or braking control, but the power assist to these systems will be lost.
This will make it more difficult to steer and brake, so you should pull over
and stop the vehicle as soon as it is safe to do so.
NOTICE
To prevent 12-volt battery discharge
Do not leave the “POWER” switch in ACCESSORY or ON mode for long
periods of time without the hybrid system on.
If the smart entry & start system indicator light (green) is illuminated, the
“POWER” switch is not off. When exiting the vehicle, always check that the
“POWER” switch is off.
Do not stop the hybrid system when the shift lever is in a position other
than P. If the hybrid system is stopped in another shift lever position, the
“POWER” switch will not be turned off but instead be turned to ACCES-
SORY mode. If the vehicle is left in ACCESSORY mode, 12-volt battery
discharge may occur.
When starting the hybrid system
If the hybrid system becomes difficult to start, have your vehicle checked by
any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional immediately.
Symptoms indicating a malfunction with the “POWER” switch
If the “POWER” switch seems to be operating somewhat differently than
usual, such as the switch sticking slightly, there may be a malfunction. Con-
tact any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional immediately.