2012 TOYOTA YARIS HYBRID Owners Manual

321 2-4. Using other driving systems
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When driving
YARIS_F (including HV)_WE_52C79E
• The vehicle is stopped on a steep hill.
• The brake booster vacuum is low.
• A large amount of electricity is being used.
• At high altitude.
When the above conditions improve, the Stop & Start system will stop and
restart the engine from the next time the vehicle is stopped.
In the following situations, the engine may start even without the brake
pedal being released (vehicles with a Multidrive) or clutch pedal being
depressed (vehicles with a manual transmission).
• The brake pedal is pumped or strongly depressed.
• The air conditioning system is being used or turned on.
• Vehicles with an automatic air conditioning system only: The wind-
shield defogger is turned on.
• The battery is not sufficiently charged.
• The vehicle starts to roll on an incline.
• Vehicles with a Multidrive: The hood is opened when the shift lever is in
N or P.
• The accelerator pedal is depressed.
• A large amount of electricity is being used.
• Vehicles with a Multidrive: The driver’s door is opened.
• Vehicles with a Multidrive: The driver’s seat belt is unfastened.
In the following situations, it may take longer than normal for the Stop &
Start system to activate.
• The battery is discharged.
• After the battery terminals have been disconnected and reconnected
after a battery replacement, etc.
• The engine coolant temperature is low.
Automatic reactivation of the Stop & Start system
Vehicles without a smart entry & start system:
Even if the Stop & Start system is disabled by the Stop & Start cancel switch,
it will be automatically re-enabled once the engine switch is turned to the
“LOCK” position then to the “START” position.
Vehicles with a smart entry & start system:
Even if the Stop & Start system is disabled by the Stop & Start cancel switch,
it will be automatically re-enabled once the “ENGINE START STOP” switch
is turned off then the engine is started.

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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.

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When driving
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Stop & Start system warning buzzer
If the engine is stopped by the Stop & Start system and either of the following
actions is performed, a buzzer will sound and the Stop & Start indicator will
flash (vehicles with a Multidrive), or a buzzer will sound (vehicles with a
manual transmission). This indicates that the engine is only stopped by the
Stop & Start system, not that the engine has been turned off completely.
Vehicles with a Multidrive: The driver’s door is opened when the shift
lever is in D or M.
Vehicles with a Multidrive: The shift lever is shifted into a position other
than N or P with the brake pedal released.
Vehicles with a manual transmission: The shift lever is shifted into a posi-
tion other than N with the clutch pedal released.
If the Stop & Start cancel indicator light continues to flash
The Stop & Start system may be malfunctioning. Contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional.
If the windshield is fogged up while the engine is stopped by the Stop
& Start system
Vehicles with an automatic air conditioning system
Turn the windshield defogger on. (The engine will start due to the auto-
matic engine start function.) (P. 365)
Vehicles with a manual air conditioning system
• Vehicles with a Multidrive: Restart the engine by releasing the brake
pedal (when the shift lever is in D or M) or depress the brake pedal and
shift the shift lever to D or M (when the shift lever is in N or P) (P.
319), or by pressing the Stop & Start cancel switch, and then set the air
outlet selection dial to . (P. 357)
• Vehicles with a manual transmission: Restart the engine by depressing
the clutch pedal (P. 319), or by pressing the Stop & Start cancel
switch, and then set the air outlet selection dial to . (P. 357)
If the windshield fogs up frequently, press the Stop & Start cancel switch to
deactivate the system.

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The Stop & Start system operation time and Stop & Start system total
operation time display
P. 288289
Replacing battery
The installed battery is specific to the Stop & Start system. It should only be
replaced with a battery of identical type and rating.
Ask any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional for further details.
CAUTION
When the Stop & Start system is operating
Keep the shift lever in N and apply the brake pedal or parking brake for
safety while the engine is stopped due to the Stop & Start system (while
the Stop & Start indicator is on).
Unexpected accidents may occur due to the automatic engine start func-
tion.
Do not leave the vehicle while the engine is stopped due to the Stop &
Start system (while the Stop & Start indicator is on).
Unexpected accidents may occur due to the automatic engine start func-
tion.
Ensure that the engine is not stopped by the Stop & Start system while the
vehicle is in a poorly ventilated area. The engine may restart due to the
automatic engine start function, causing exhaust gases to collect and
enter the vehicle and resulting in death or a serious health hazard.

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NOTICE
To ensure the system operates correctly
If any one of the following situations occurs, the Stop & Start system may not
operate correctly, thus, please have your vehicle checked by any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional.
While the driver’s seat belt is fastened, the driver’s and front passenger’s
seat belt reminder light flashes.
Even when the driver’s seat belt is not fastened, the driver’s and front pas-
senger’s seat belt reminder light remains off.
Even when the driver’s door is closed, the open door warning light comes
on, or the interior light comes on when the interior light switch is in the door
position.
Even when the driver’s door is opened, the open door warning light does
not come on, or the interior light does not come on when the interior light
switch is in the door position.

326
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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

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When driving
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When the TRC/VSC systems are operating (except hybrid vehicle)
The slip indicator light flashes to
indicate that the TRC/VSC sys-
tems have been engaged.
When the TRC/VSC/ABS/hill-start assist control systems are
operating (hybrid vehicle)
The slip indicator light will flash
while the TRC/VSC/ABS/hill-
start assist control systems are
operating.
The stop lights and high mounted
stoplight turn on when the hill-
start assist control system is
operating.

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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.