sensor TOYOTA YARIS 2020 (in English) Owner's Manual

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YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
1-4. SRS Air Bags
1
Essential Safety Equipment
Constant Monitoring
The following components of the air bag systems are monitored by a
diagnostic system: • Crash sensors, and diagnostic module (SAS unit)
• Front air bag sensors
• Air bag modules
• Side crash sensors
• Air bag/Front seat belt pret ensioner system warning light
• Front seat belt pretensioners
• Related wiring
• Front passenger air bag d eactivation indicator light
• Front passenger occupant classification sensor
• Front passenger occupant classification module
The diagnostic module continuously monitors the system’s readin ess.
This begins when the ignition is switched ON and continues whil e the
vehicle is being driven.

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YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
2-4. Fuel and Emission
2
Before Driving
Fuel and Engine Exhaust Precautions
Vehicles with catalytic converters or oxygen sensors must use O NLY
UNLEADED FUEL, which will reduc e exhaust emissions and keep
spark plug fouling to a minimum.
To achieve maximum engine perfor mance, use the specified fuel.
*1: U.S. federal law requires that octane ratings be posted on gas station
pumps.
Fuel with a rating lower than 87 octane (91 RON) could cause th e
emission control system to lose e ffectiveness. It could also cause
engine knocking and serious engine damage.
Gasoline blended with oxygenates such as alcohol or ether com-
pounds are generally referred to as oxygenated fuels. The commo n
gasoline blend that can be used with your vehicle is ethanol bl ended
at no more than 10 %. Gasoline containing alcohol, such as etha nol or
methanol, may be marketed under the name “Gasohol”.
Vehicle damage and drivability problems resulting from the use of the
following may not be covered by the warranty. • Gasohol containing m ore than 10 % ethanol.
• Gasoline or gasohol containing methanol.
• Leaded fuel or leaded gasohol.
Fuel Requirements
FuelOctane Rating*1 (Anti-knock index)
Regular unleaded fuel87 [(R+M)/2 method] or above (91 RON or above)
NOTICE
●USE ONLY UNLEADED FUEL.
Leaded fuel is harmful to the catalytic converter and oxygen se nsors and
will lead to deterioration of the emission control system and o r failures.
● This vehicle can only use oxygenated fuels containing no more t han 10 %
ethanol by volume. Damage to the vehicle may occur when ethanol
exceeds this recommendation, or if the gasoline contains any me thanol.
Stop using gasohol of any kind if your vehicle engine is performing poorly.
● Never add fuel system additives other than a Toyota genuine pro duct, oth-
erwise the emission control system could be damaged. Consult yo ur Toy-
ota dealer for details.

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YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
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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YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3-2. Combination Meter and Display
The light illuminates continuously
when the engine coolant tempera-
ture is low and turns off after the
engine is warm.
If the low engine coolant tempera-
ture indicator light remains illumi-
nated after the engine has been
sufficiently warmed up, the tem-
perature sensor could have a mal-
function. Consult your Toyota
dealer.
Low Engine Coolant Temperature Indicator Light (Blue)

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YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3-4. Switches and Controls
When the lights are turned on, the
lights-on indicator light in the com-
bination meter turns on.
■Auto-light control (if equipped)
When the headlight switch is in the AUTO position and the ignition
is switched ON, the light sensor s enses the surrounding lightness
or darkness and automatically turns the headlights, other exter ior
lights and dashboard illumination on or off.
■ Headlights
●If the light switch is left on, the lights will automatically switch off approxi-
mately 30 seconds after switching the ignition off.
The time setting can be changed.
Refer to Customizable Features on P. 555.
● To prevent discharging the battery, do not leave the lights on while the
engine is off unless safety requires them.
■ Auto-light control
●The headlights, other exterior lights and dashboard illuminatio n may not turn
off immediately even if the surrounding area becomes well-lit because the
light sensor determines that it is night time if the surrounding area is contin-
uously dark for several minutes such as inside long tunnels, tr affic jams
inside tunnels, or in indoor parking lots.
In this case, the lights turn off if the light switch is turned to the OFF position.
● If the headlight switch and the windshield wiper switch are in AUTO, and the
wipers are operated at low or high speed by the auto wiper cont rol for sev-
eral seconds, bad weather conditions are determined and the hea dlights
may be turned on.
● The dashboard illumination can be adjusted by rotating the knob in the
instrument cluster.
Also, the day/night mode can be changed by rotating the knob un til a beep
sound is heard.
To adjust the brightness of the dashboard illumination:
Refer to Dashboard Illumination on P. 169.
● The sensitivity of the auto-light control may be changed.
Refer to Customizable Features on P. 555.

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
1953-4. Switches and Controls
3
When Driving
NOTICE
●The light sensor also works as a rain sensor for the auto-wiper control.
Keep hands and scrapers clear of the windshield when the wiper lever is in
the AUTO position and the ignition is switched ON as fingers could be
pinched or the wipers and wiper blades could be damaged when th e wip-
ers activate automatically. If you are going to clean the windshield, be sure
the wipers are turned off completely when it is particularly te mpting to
leave the engine running. This is particularly important when clearing ice
and snow.
● Do not shade the light sensor by adher-
ing a sticker or a label on the wind-
shield. Otherwise the light sensor will
not operate correctly.

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
2033-4. Switches and Controls
3
When Driving
●With auto-wiper control
Turn the wipers on by pressing
the lever up or down.
■Auto-wiper control (if equipped)
When the wiper lever is in the
AUTO position, the rain sensor
senses the amount of rainfall on
the windshield and turns the wip-
ers on or off automatically
(off―intermittent―low speed―
high speed).
The sensitivity of the rain sensor
can be adjusted by turning the
switch on the wiper lever.
From the center position (normal), rotate the switch upward for higher
sensitivity (faster response) or rotate it downward for less sensitivity
(slower response).
Switch PositionWiper operation
MISTOperation while pulling up lever
OFFStop
AUTOAuto control
LOLow speed
HIHigh speed
Switch Less sensitivity
Higher sensitivity
Center
position

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YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3-4. Switches and Controls
●Switching the auto-wiper lever from the OFF to the AUTO positio n while
driving activates the windshield wipers once, after which they operate
according to the rainfall amount.
● The auto-wiper control may not operate when the rain sensor tem perature is
about -10 °C (14 °F) or lower, or about 85 °C (185 °F) or higher.
● If the windshield is coated with water repellent, the rain sens or may not be
able to sense the amount of rainfall correctly and the auto-wip er control may
not operate properly.
● If dirt or foreign matter (such as ice or matter containing sal t water) adheres
to the windshield above the rain sensor, or if the windshield i s iced, it could
cause the wipers to move automatically. However, if the wipers cannot
remove this ice, dirt or foreign matter, the auto-wiper control will stop opera-
tion. In this case, set the wiper lever to the low speed positi on or high speed
position for manual operation, or remove the ice, dirt or forei gn matter by
hand to restore the auto-wiper operation.
● If the auto-wiper lever is left in the AUTO position, the wipers could operate
automatically from the effect of strong light sources, electrom agnetic waves,
or infrared light because the rain sensor uses an optical senso r. It is recom-
mended that the auto-wiper lever be switched to the OFF positio n other than
when driving the vehicle under rainy conditions.
● The auto-wiper control functions can be turned off. Refer to Cu stomizable
Features on P. 555
NOTICE
● When the wiper lever is in the AUTO position and the ignition is switched
ON, the wipers may move automatically in the following cases:
• If the windshield above the rain sensor is touched or wiped with a cloth.
• If the windshield is struck with a hand or other object from e ither outside
or inside the vehicle.
Keep hands and scrapers clear of the windshield when the wiper lever is
in the AUTO position and the ignition is switched ON as fingers could be
pinched or the wipers and wiper blades damaged when the wipers acti-
vate automatically. If you are going to clean the windshield, be sure the
wipers are turned off completely (when it is most likely that t he engine is
left running) this is particularly important when clearing ice and snow.
●Do not shade the rain sensor by adher-
ing a sticker or a label on the wind-
shield. Otherwise the rain sensor will
not operate correctly.

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YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3-10. Active Safety System
3
When Driving
Active Safety System
◆Pre-Crash Safety Technology
Pre-crash safety technology is designed to assist the driver in
averting collisions or reduce their severity in situations where they
cannot be avoided.
● Collision damage reducti on in low vehicle speed range
Forward driving:
Low Speed Pre-Co llision System (P. 228)
◆Sensor
● Laser sensor
The laser sensor emits a near-infrared laser beam and receives
the beam reflected off the refl ective surface of a vehicle or
obstruction in front, and the det ected beam is then used for me a-
surement. The laser sensor is us ed for the Low Speed Pre-Colli-
sion System.
The laser sensor is installed at the top of the windshield near the
rearview mirror.
Refer to Laser Sensor on P. 234.

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YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3-10. Active Safety System
Low Speed Pre-Collision System
The Low Speed Pre-Collision System is designed to reduce
damage in the event of a colli sion by operating the brake control
(Low Speed Pre-Collision System brake) when the system’s
laser sensor detects a vehicle a head and determines that a colli-
sion with a vehicle ahead is unavo idable. It may also be possible
to avoid a collision if the relat ive speed between your vehicle
and a vehicle ahead is less than about 12 mph (20 km/h).
In addition, when the driver depresses the brake pedal while th e
system is in the operation range at about 2 to 18 mph (4 to
30 km/h), the brakes are applied firmly and quickly to assist.
(Brake Assist (Low Speed Pre-Collision System brake assist))
Laser sensor