engine TOYOTA YARIS 2017 Owners Manual

2624-6. Using the driving support systems
YARIS_F_OM_Europe_OM52J20E
■ 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 switch off then to ACCESSORY mode or
IGNITION ON mode re-enables the audio system.
■ 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 automatic
engine start function. Restart the engi ne with the engine switch operation.
( P. 182, 185)
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.
■ When to use the Stop & Start system
Use the Stop & Start system when stopping the vehicle temporarily at red
lights, intersections, etc. When stoppi ng the vehicle for a longer period of
time, turn off the engine completely.
■ 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 (Multidrive), or a buzzer will sound (manual transmission). This indi-
cates 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 manual transmission
The shift lever is shifted into a position other than N with the clutch pedal
released.

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Driving
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■ If the Stop & Start cancel indicator continues to flash
The Stop & Start system may be malfunctioning. Contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped professional.
■ 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 automatic
engine start function.) ( P. 324)
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 sh ift the shift lever to D or M (when
the shift lever is in N or P) ( P. 258), or by pressing the Stop & Start cancel
switch, and then set the air outlet selector dial to . ( P. 314)
Vehicles with a manual transmission:
Restart the engine by depressing the clutch pedal ( P. 258), or by pressing
the Stop & Start cancel switch, and then set the air outlet selector dial to
. ( P. 314)
If the windshield fogs up frequently, press the Stop & Start cancel switch to
deactivate the system.
■ The Stop & Start system operation time and Stop & Start system total
operation time display
 P. 9 4
■ 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.

2644-6. Using the driving support systems
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WARNING
■When the Stop & Start system is operating
● Keep the shift lever in N (manual transmission) 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.
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 autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
● 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.

2664-6. Using the driving support systems
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The slip indicator will flash while
the TRC/VSC systems are operat-
ing.
If the vehicle gets stuck in mud, dirt or snow, the TRC system may
reduce power from the engine to the wheels. Pressing VSC OFF
switch to turn the system off may make it easier for you to rock the
vehicle in order to free it.
To turn the TRC system off,
quickly press and release the
VSC OFF switch.
The “TRC OFF” indicator will
come on.
Press the switch again to turn
the system back on.
When the TRC/VSC systems are operating
Disabling the TRC systems

2674-6. Using the driving support systems
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Driving
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■Turning off both TRC and VSC systems
To turn TRC and VSC systems off, press and hold the VSC OFF switch for
more than 3 seconds while the vehicle is stopped.
The “TRC OFF” indicator and the VSC OFF indicator will come on.
Press the switch again to turn the systems back on.
On vehicles with pre-crash safety system, pre-crash brake assist and pre-
crash braking will also be disabled. The PCS warning light will come on.
( P. 239)
■ When the “TRC OFF” indicator comes on even if the VSC OFF switch
has not been pressed
TRC cannot be operated. Contact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
■ 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.
■ Automatic reactivation of TRC and VSC systems
After turning the TRC and VSC systems off, the systems will be automatically
re-enabled in the following situations:
● When the engine switch is turned to the “LOCK” position
● If only the TRC system is turned off, the TRC will turn on when vehicle
speed increases
If both the TRC and VSC systems are turned off, automatic re-enabling will
not occur when vehicle speed increases.
■ Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result.
Should this occur, refrain from excessive steering input or stop the vehicle
and turn the engine off. The EPS system should return to normal within 10
minutes.

2704-6. Using the driving support systems
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Diesel par ticulate filter system
Cleaning the DPF catalytic converter is performed as necessary in
accordance with driving conditions.
The DPF system has the following characteristics:
● Idle speed increases during cleaning
● The smell of the exhaust gas changes
● When starting the engine, white-colored steam (water vapor) may
be expelled during cleaning
● Acceleration performance may degrade during cleaning
■Replacing the engine oil
 P. 369
: If equipped
When the deposit collected by the filter reaches a predetermined
amount, it is automatically cleaned.
Cleaning the DPF catalytic converter
Equipment characteristics

2714-6. Using the driving support systems
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WARNING
■Exhaust pipe
Do not touch the exhaust pipe during cleaning, as the exhaust pipe and
exhaust gases will become particularly hot. Also, make sure that there are
no people or flammable materials near the exhaust pipe while the vehicle is
stopped.
Failure to do so may cause injury by burning or a fire.
NOTICE
■ To prevent the DPF system from failing
● Do not use fuel other than the specified type
● Do not use engine oil other than the recommended type
● Do not modify the exhaust pipe

2724-7. Driving tips
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Winter driving tips
●Use fluids that are appropriate to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
● Have a service technician inspect the condition of the battery.
● Have the vehicle fitted with four snow tires or purchase a set of tire
chains for the front tires.
Ensure that all tires are the same size and brand, and that their wear level
is not noticeably different with each other. Also make sure that chains
match the size of the tires.
Perform the following according to the driving conditions:
● Do not try to forcibly open a window or move a wiper that is frozen.
Pour warm water over the frozen area to melt the ice. Wipe away
the water immediately to prevent it from freezing.
● To ensure proper operation of the climate control system fan,
remove any snow that has accumulated on the air inlet vents in
front of the windshield.
● Check for and remove any excess ice or snow that may have accu-
mulated on the exterior lights, vehicle’s roof, chassis, around the
tires or on the brakes.
● Remove any snow or mud from the bottom of your shoes before
getting in the vehicle.
Carry out the necessary preparations and inspections before
driving the vehicle in winter. Always drive the vehicle in a man-
ner appropriate to the prevailing weather conditions.
Preparation for winter
Before driving the vehicle

2754-7. Driving tips
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Driving
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WARNING
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehicle control and cause death or
serious injury.
● Use tires of the specified size.
● Maintain the recommended level of air pressure.
● Do not drive at speeds in excess of the speed limit or the speed limit spec-
ified for the snow tires being used.
● Use snow tires on all, not just some wheels.
● Do not use tires of noticeably different wear level.
■ Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely,
and may cause death or serious injury.
● Do not drive in excess of the speed limit specified for the tire chains being
used, or 50 km/h (30 mph), whichever is lower.
● Avoid driving on bumpy road surfaces or over potholes.
● Avoid sudden acceleration, abrupt steering, sudden braking and shifting
operations that cause sudden engine braking.
● Slow down sufficiently before entering a curve to ensure that vehicle con-
trol is maintained.
● Do not use LDA (Lane Departure Alert) (if equipped).

2795-1. Basic Operations
5
Audio system
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Vehicles without a Navigation/Multimedia system
CD player and AM/FM radio
The illustration below is for left-hand drive vehicles. Some button posi-
tions are reversed for right-hand drive vehicles.
■ Using cellular phones
Interference may be heard through the audio system’s speakers if a cellular
phone is being used inside or close to the vehicle while the audio system is
operating.
NOTICE
■ To prevent battery discharge
Do not leave the audio system on longer than necessary when the engine is
stopped.
■ To avoid damaging the audio system
Take care not to spill drinks or other fluids over the audio system.