wheel TOYOTA YARIS 2012 Service Manual

226 2-1. Driving procedures
YARIS_F (including HV)_WE_52C79E
Turning the key from “ACC” to “LOCK”
Shift the shift lever to P (vehicles with a Multidrive), E, M or R (vehi-
cles with a multi-mode manual transmission) or N (vehicles with a
manual transmission). (P. 255, 260, 265)
If the engine does not start
The engine immobilizer system may not have been deactivated. (P. 155)
Contact any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional.
When the steering lock cannot be released
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.
Push in the key and turn it to the “LOCK”
position.
When starting the engine, the engine
switch may seem stuck in the “LOCK”
position. To free it, turn the key while turn-
ing the steering wheel slightly left and
right.

234 2-1. Driving procedures
YARIS_F (including HV)_WE_52C79E
Conditions affecting operation
P. 7 8
Notes for the entry function
P. 7 9
If the engine does not start
The engine 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 “ENGINE START STOP” switch off and opening and closing
the doors, the steering wheel will be locked due to the steering lock function.
Operating the “ENGINE START STOP” switch again automatically cancels
the steering lock.
When the steering lock cannot be released
Vehicles with a Multidrive: Check that the
shift lever is securely set in P. The engine
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.
Vehicles with a Multidrive
Check that the shift lever is set in P. Press
the “ENGINE START STOP” switch while
turning the steering wheel left and right.
Vehicles with a multi-mode manual
transmission and manual transmis-
sion
Press the “ENGINE START STOP” switch
while turning the steering wheel left and
right.

239 2-1. Driving procedures
2
When driving
YARIS_F (including HV)_WE_52C79E
Stopping the hybrid system
Stop the vehicle completely.
Shift the shift lever to P. (P. 252)
Set the parking brake. (P. 271)
Turn the engine switch to the “LOCK” position to stop the
hybrid system.
Slowly release the brake pedal and check that the
“READY” indicator is off.
Changing the engine switch positions
“LOCK”
The steering wheel is locked
and the key can be removed.
(The key can be removed only
when the shift lever is in P.)
“ACC”
Some electrical components
such as the audio system can
be used.
“ON”
All electrical components can
be used.
“START”
For starting the hybrid system.

241 2-1. Driving procedures
2
When driving
YARIS_F (including HV)_WE_52C79E
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.

247 2-1. Driving procedures
2
When driving
YARIS_F (including HV)_WE_52C79E
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.

272
2-1. Driving procedures
YARIS_F (including HV)_WE_52C79E
Horn
After adjusting the steering wheel
Make sure that the steering wheel is securely locked.
The horn may not sound if the steering wheel is not securely locked.
(P. 140)
To sound the horn, press on or
close to the mark.

322 2-4. Using other driving systems
YARIS_F (including HV)_WE_52C79E
The Stop & Start system protection feature
Vehicles without a smart entry & start system:
When an excessively loud sound is being projected by the audio system, the
audio system may be automatically cut off in order to maintain power for the
Stop & Start system function.
If this occurs, turning the engine switch to the “LOCK” position then to the
“ACC” or “ON” position re-enables the audio system.
Vehicles with a smart entry & start system:
When an excessively loud sound is being projected by the audio system, the
audio system may be automatically cut off in order to maintain power for the
Stop & Start system function.
If this occurs, turning the “ENGINE START STOP” switch off then to ACCES-
SORY mode or IGNITION ON mode re-enables the audio system.
Steering wheel operation
When the engine is stopped by the Stop & Start system, the steering wheel
may become heavier than when driving.
Hood
If the hood is opened while the engine is stopped by the Stop & Start system,
the engine cannot be restarted by the Stop & Start system or by the auto-
matic engine start function. Restart the engine with the engine switch opera-
tion. (P. 224, 228)
Vehicles with a Multidrive: If the hood is opened while the engine is stopped
by the Stop & Start system and the shift lever is in N or P, the engine will
restart.
Hill-start assist control (vehicles with a Multidrive)
On a steep uphill grade, the vehicle may roll backward after hill-start
assist control is released. In this situation, apply the parking brake and
operate the brake pedal when putting the vehicle in motion.
This system operates on flat surfaces as well as steep grades.
When the engine is stopped due to Stop & Start system operation, the
force required to depress the brake pedal may change, but this is not a
malfunction.
When to use the Stop & Start system
Use the Stop & Start system when stopping the vehicle temporarily at red
lights, intersections, etc. When stopping the vehicle for a longer period of
time, turn off the engine completely.

326
2-4. Using other driving systems
YARIS_F (including HV)_WE_52C79E
Driving assist systems
To help enhance driving safety and performance, the following sys-
tems operate automatically in response to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heavily when operating the vehicle.
ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface
Brake assist
Generates an increased level of braking force after the brake pedal is
depressed when the system detects a panic stop situation
VSC (Vehicle Stability Control) (if equipped)
Helps the driver to control skidding when swerving suddenly or turning
on slippery road surfaces
TRC (Traction Control) (if equipped)
Helps to maintain drive power and prevent the drive wheels from spin-
ning when starting the vehicle or accelerating on slippery roads
Hill-start assist control
Except hybrid vehicle (vehicles with a Stop & Start system and a
Multidrive)
Helps to prevent the vehicle from rolling backward when the brake
pedal is released to restart the engine
Hybrid vehicle
P. 332
EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn
the steering wheel

328 2-4. Using other driving systems
YARIS_F (including HV)_WE_52C79E
Disabling the TRC/VSC systems (except hybrid vehicle)
If the vehicle gets stuck in fresh snow or mud, the TRC/VSC systems
may reduce power from the engine to the wheels. You may need to
turn the system off to enable you to rock the vehicle in order to free it.
Turning off the TRC system only
To turn the TRC system off,
quickly press and release the
button.
The “TRC OFF” indicator light will
come on.
Press the button again to turn the
system back on.
Turning off both TRC and VSC systems
To turn the TRC and VSC sys-
tems off, press and hold the but-
ton for more than 3 seconds
while the vehicle is stopped.
The “TRC OFF” indicator light
and VSC OFF indicator light will
come on.
Press the button again to turn the
systems back on.

329 2-4. Using other driving systems
2
When driving
YARIS_F (including HV)_WE_52C79E
Hill-start assist control operation conditions (except hybrid vehicle)
The shift lever is in D or M.
The brake pedal is not depressed.
When the “TRC OFF” indicator light comes on even if the VSC OFF
switch has not been pressed (except hybrid vehicle)
TRC and hill-start assist control cannot be operated. Contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional.
Sounds and vibrations caused by the ABS, brake assist, TRC and VSC
systems
A sound may be heard from the engine compartment when the brake
pedal is depressed repeatedly, when the engine is started or just after the
vehicle begins to move. This sound does not indicate that a malfunction
has occurred in any of these systems.
Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.
EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may
be heard. This does not indicate a malfunction.
Reactivation of the TRC/VSC systems after turning off the engine
(except hybrid vehicle)
Even after the TRC/VSC systems have been turned off, turning the engine
off and then on again will automatically reactivate the TRC/VSC systems.
Reactivation of the TRC system linked to vehicle speed (except hybrid
vehicle)
When only the TRC system is turned off, the TRC system will turn on when
vehicle speed increases. However, when both TRC and VSC systems are
turned off, the systems will not turn on even when vehicle speed increases.