warning light TOYOTA YARIS HATCHBACK 2020 (in English) Service Manual

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2-9. Driving Tips
2
Before Driving
Rocking the Vehicle
If you must rock the vehicle to free it from snow, sand or mud, depress
the accelerator slightly and slow ly move the shift lever from 1 (D) to R
position.
WARNING
■ Do not spin the wheels at more th an 35 mph (56 km/h), and do not
allow anyone to stand behind a wheel when pushing the vehicle
When the vehicle is stuck, spinning the wheels at high speed is dangerous.
The spinning tire could overheat and explode. This could cause serious
injuries.
NOTICE
Too much rocking may cause engine overheating, transaxle failure, and tire
damage.

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2-9. Driving Tips
2
Before Driving
Driving In Flooded Area
WARNING
■Dry off brakes that have become wet by driving slowly, releasin g the
accelerator pedal and lightly applying the brakes several times until
the brake performance returns to normal
Driving with wet brakes is dangerous. Increased stopping distan ce or the
vehicle pulling to one side when braking could result in a seri ous accident.
Light braking will indicate whether the brakes have been affect ed.
NOTICE
Do not drive the vehicle on flooded roads as it could cause sho rt circuiting
of electrical/electronic parts, or engine damage or stalling fr om water
absorption. If the vehicle has been immersed in water, consult your Toyota
dealer.

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3When Driving
3-1. Start/Stop EngineIgnition Switch ................... 156
Starting the Engine ........... 158
Turning the Engine Off ...... 163
3-2. Combination Meter and Display
Meters and Gauges .......... 164
Warning/Indicator Lights .............................. 173
3-3. Transaxle Manual Transaxle Operation ........................ 177
Automatic Transaxle Controls........................... 181
3-4. Switches and Controls Lighting Control ................. 192
Fog Lights ......................... 198
Turn and Lane-Change Signals ............................ 199
Windshield Wipers and Washer..................... 201
Rear Window Wiper and Washer............................ 206
Rear Window Defogger ......................... 207
Hazard Warning Flasher ............................ 208 3-5. Brake
Brake System.................... 209
Hill Launch Assist (HLA) ... 213
3-6. ABS/TCS/DSC Antilock Brake System (ABS) .............................. 215
Traction Control System (TCS) .............................. 216
Dynamic Stability Control (DSC) .............................. 218
3-7. Fuel Economy Monitor Fuel Economy Monitor ...... 221
3-8. Drive Selection Drive Selection (Automatic Transaxle) ..... 224
3-9. Power Steering Power Steering ................. 226
3-10. Active Safety System Active Safety System ........ 227
Low Speed Pre-Collision System ............................ 228
Laser Sensor..................... 234
3-11. Cruise Control Cruise Control ................... 236
3-12. Tire Pressure Monitoring System
Tire Pressure Monitoring System ............................ 241
3-13. Rear View Monitor Rear View Monitor ............ 245

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3-1. Start/Stop Engine
Ignition Switch
The system operates only when the driver is in the vehicle or within
operational range while the key is being carried.
Each time the push button start is
pressed, the ignition switches in
the order of off, ACC, and ON.
Pressing the push button start
again from ON switches the igni-
tion off.
■Off
The power supply to electrical devices turns off and the push b utton
start indicator light (amber) also turns off.
In this position the st eering wheel is locked.
■ACC (Accessory)
Some electrical access ories will operate and the indicator light
(amber) illuminates.
■ON
This is the normal running posit ion after the engine is started. The
indicator light (amber) turns off. (The indicator light (amber) illumi-
nates when the ignition is switched ON and the engine is not ru n-
ning.)
Some indicator lights/warning lights should be inspected before the
engine is started ( P. 1 7 3 ) .
Push Button Start Positions
Push button start Indicator light

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
1593-1. Start/Stop Engine
3
When Driving
After starting the engine, let it idle for about ten seconds.
●The key must be carried because the key carries an immobilizer chip that
must communicate with the engine controls at short range.
● The engine can be started when the push button start is pressed from off,
ACC, or ON.
● The push button start system functions (function which can star t the engine
by only carrying the key) can be deactivated to prevent any pos sible
adverse effect on a user wearing a pacemaker or other medical d evice. If
the system is deactivated, you will be unable to start the engi ne by carrying
the key. Consult your Toyota dealer for details. If the push bu tton start sys-
tem functions have been deactivated, you can start the engine b y following
the procedure indicated when the key battery goes dead.
Refer to Engine Start Function When Key Battery is Dead on P. 161.
● After starting a cold engine, the engine speed increases and a whining
sound from the engine compartment can be heard.
This is for improved exhaust gas purification and does not indicate defect of
the parts.
● Engine-starting is controlled by the spark ignition system.
This system meets all Canadian Interference-Causing Equipment Standard
requirements regulating the impul se electrical field strength of radio noise.
● Under the following conditions, the KEY warning light (red) fla shes after the
push button start is pressed to inform the driver that the push button start
will not switch to ACC even if it is pressed from off.
• The key battery is dead.
• The key is out of operational range.
• The key is placed in areas where it is difficult for the syste m to detect the
signal ( P. 98).
• A key from another manufacturer similar to the key is in the o perational
range.
8

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3-1. Start/Stop Engine
●Forced engine starting method:
If the KEY warning light (red) illuminates, or the push button start indicator
light (amber) flashes, this could indicate that the engine may not start using
the usual starting method. Have your vehicle inspected at your To y o t a
dealer as soon as possible. If this occurs, the engine can be f orce-started.
Press and hold the push button start until the engine starts. O ther proce-
dures necessary for starting the engine such as having the key in the cabin,
and depressing the clutch pedal (manual transaxle) or the brake pedal
(automatic transaxle) are required.
● When the engine is force-started, the KEY warning light (red) r emains illumi-
nated and the push button start indicator light (amber) remains flashing.
● Automatic transaxle:
When the selector lever is in the neutral (N) position, the KEY indicator light
(green) and the push button start indicator light (green) do no t illuminate.
● After pressing the push button start and before the engine star ts, the opera-
tion sound of the fuel pump motor from near the fuel tank can be heard,
however, this does not indicate a malfunction.
● Whether the engine is cold or warm, it should be started without the use of
the accelerator.
● If the engine does not start the first time, refer to Starting a Flooded Engine
under Emergency Starting. If the engine still does not start, have your vehi-
cle inspected by your Toyota dealer ( P. 482).
WARNING
■Radio waves from the key may affect medical devices such as pac e-
makers
Before using the key near people who use medical devices, ask t he medical
device manufacturer or your physician if radio waves from the key will affect
the device.
NOTICE
If the KEY warning light (red) illuminates, or the push button start indicator
light (amber) flashes, this could indicate a problem with the e ngine starting
system and the inability to start the engine or switch the igni tion to ACC or
ON. Have your vehicle inspected at your Toyota dealer as soon a s possible.

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3-1. Start/Stop Engine
Press the push button start to switch the ignition position. The ignition
switches in the order of ACC, ON, and off each time the push button start
is pressed. To switch the ignition position again, perform the operation
from the beginning.
If the KEY warning lig ht (red) illuminates, or the push button start indi-
cator light (amber) flashes, thi s could indicate that the engin e may not
start using the usual starting method. Have your vehicle inspec ted at
your Toyota dealer as soon as possible. If this occurs, the eng ine can
be force-started. Press and hold the push button start until th e engine
starts. Other procedures necessary for starting the engine such as
having the key in the cabin, and depressing the clutch pedal (m anual
transaxle) or the brake pedal (automatic transaxle) are require d.
NOTICE
When starting the engine by holding the smart key over the push button
start due to a dead key battery or a malfunctioning key, be careful not to
allow the following, otherwise the signal from the key will not be received
correctly and the engine may not start.
● Devices for electronic purchases, or security passage touch or come near
the key.
Emergency Operation for Starting the Engine
2
● Metal parts of other keys or metal
objects touch the key.
● Spare keys or keys for other vehicles
equipped with an immobilizer system
touch or come near the key.

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3-1. Start/Stop Engine
3
When Driving
Turning the Engine Off
Stop the vehicle completely.
Manual transaxle:
Shift into neutral and set the parking brake.
Automatic transaxle:
Shift the selector lever to th e P position and set the parking brake.
Press the push button start to turn off the engine. The ignitio n posi-
tion is off.
● The cooling fan in the engine compartment could turn on for a f ew minutes
after the ignition is switched from ON to OFF, whether or not the A/C is on or
off, to cool the engine compartment quickly.
● When the push button start is pressed from ON to ACC or OFF, th e KEY
indicator light (green) may flash for approximately 30 seconds indicating
that the remaining battery power of the key is low.
Replace with a new battery before the key becomes unusable.
Refer to Key Battery Replacement on P. 410.
● Automatic transaxle:
If the engine is turned off while the selector lever is in a po sition other than
P, the ignition switches to ACC.
Continuously pressing the push button start or quickly pressing it two
or more times while the engine is running or the vehicle is bei ng
driven will turn the engine off immediately. The ignition switc hes to
ACC.
WARNING
■ Do not stop the engine while the vehicle is moving
Stopping the engine while the vehicle is moving for any reason other than in
an emergency is dangerous. Stopping the engine while the vehicl e is mov-
ing will result in reduced braking ability due to the loss of power braking,
which could cause an accident and serious injury.
NOTICE
When leaving the vehicle, make sure the push button start is off.
Emergency Engine Stop
1
2
3

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3-2. Combination Meter and Display
The fuel gauge shows approximately how much fuel is remaining in
the tank when the ignition is sw itched ON. We recommend keeping
the tank over 1/4 full.
Full
1/4 Full
Empty
If the low fuel warning light illuminates or the fuel level is very low,
refuel as soon as possible.
If inconsistency in engine performance or stalling occurs due to low
fuel level conditions, refuel the vehicle as soon as possible a nd add at
least 10 L (2.7 US gal, 2 .2 Imp gal) of fuel.
Refer to Warning/Indi cator Lights on P. 173.
●After refueling, it may require some time for the indicator to stabilize. In addi-
tion, the indicator may deviate while driving on a slope or cur ve since the
fuel moves in the tank.
● The display indicating a quarter or less remaining fuel has mor e segments
to show the remaining fuel level in greater detail.
● The direction of the arrow ( ) indicates that the fuel-filler lid is on the left
side of the vehicle.
Fuel Gauge
1
2
3

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3-2. Combination Meter and Display
■Current fuel economy mode
Current fuel economy will be calculated and displayed every 2 sec-
onds.
When you’ve slowed to about 3 mph (5 km/h), - - - mpg (- - - L/ 100
km) will be displayed.
■Average vehicle speed mode
Average vehicle speed will be cal culated and displayed every 10
seconds.
To clear the data being displayed, press the INFO button for mo re
than 1.5 seconds.
After pressing the IN FO button, - - - mph (- - - km/h) will be dis-
played for about 1 minute before the vehicle speed is recalculated
and displayed.
■ Distance-to-empty mode
●Even though the distance-to-empty display may indicate a suffic ient amount
of remaining driving distance before refueling is required, refuel as soon as
possible if the fuel level is very low or the low fuel warning light illuminates.
● The display may not change unless you add more than approximate ly 2.3
gal. (9 L, 1.9 Imp.gal.) of fuel.
● The distance-to-empty is the approximate remaining distance the vehicle
can be driven until all the graduation marks in the fuel gauge (indicating the
remaining fuel supply) disappear.
● If there is no past fuel economy information such as after firs t purchasing
your vehicle or the information is deleted when the battery cab les are dis-
connected, the actual distance-to empty/range may differ from t he amount
indicated.
■ Average fuel economy mode
If TRIP A is reset using the trip meter when the function which synchronizes
(resets) the fuel economy monitor and the trip meter (TRIP A) i s on, the dis-
played past data is reset.
This mode displays the current fuel economy
by calculating the amount of fuel consumption
and the distance traveled.
This mode displays the average vehicle speed
by calculating the distance and the time trav-
eled since connecting the battery or resetting
the data.