warning light TOYOTA YARIS 2022 Service Manual

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4-4. Refueling
Driving
1Pull up the opener to open the
fuel filler door.
2 Turn the fuel tank cap slowly
and remove it, then hang it on
the back of the fuel filler door.
After refueling, turn the fuel tank
cap until you hear a click. Once the
cap is released, it will turn slightly in
the opposite direction.
NOTICE
■Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such as causing the emission control system to operate abnormally or dam-
aging fuel system components or the vehicle’s painted surface.
Opening the fuel tank cap
Closing the fuel tank cap
WARNING
■When replacing the fuel tank cap
Do not use anything but a genuine
Toyota fuel tank cap designed for your vehicle. Doing so may cause a fire or other incident which may result in
death or serious injury.

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4-5. Using the driving support systems
WARNING
●Do not attach objects, such as stickers, transparent stickers, etc.,
to the outer side of the windshield in front of the front camera (shaded area in the illustration).
From the top of the windshield to
approximately 1 cm (0.4 in.) below
the bottom of the front camera
Approximately 20 cm (7.9 in.)
(Approximately 10 cm [4.0 in.] to
the right and left from the center of
the front camera)
●If the part of the windshield in front
of the front camera is fogged up or covered with condensation or ice, use the windshield defogger to
remove the fog, condensation or ice. ( P.290)
●If water droplets cannot be properly removed from the area of the wind-shield in front of the front camera by
the windshield wipers, replace the wiper insert or wiper blade.
●Do not attach window tint to the windshield.
●Replace the windshield if it is dam-aged or cracked.After replacing the windshield, the
front camera must be recalibrated. Contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer for details.
●Do not allow liquids to contact the front camera.
●Do not allow bright lights to shine into the front camera.
●Do not dirty or damage the front camera.When cleaning the inside of the
windshield, do not allow glass cleaner to contact the lens of the front camera. Also, do not touch the
lens. If the lens is dirty or damaged, con-tact any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer.
●Do not subject the front camera to a strong impact.
●Do not change the installation posi-tion or direction of the front camera or remove it.
●Do not disassemble the front cam-era.
●Do not modify any components of the vehicle around the front camera
(inside rear view mirror, etc.) or ceil- ing.
●Do not attach any accessories to the hood, front grille or front bumper that may obstruct the front camera.
Contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer for
details.
●If a surfboard or other long object is
to be mounted on the roof, make sure that it will not obstruct the front camera.
●Do not modify the headlights or other lights.

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4-5. Using the driving support systems
Driving
■Certifications for the Toyota Safety Sense
 P. 5 4 2
■If a warning message is displayed on the multi-information display
A system may be temporarily unavailable or there may be a malfu nction in the sys- tem.
●In the following situations, perform the actions specified in t he table. When the nor- mal operating conditions are detected, the message will disappe ar and the system will become operational.
If the message does not disappear, contact any authorized Toyot a retailer or Toyota
authorized repairer, or any reliable repairer.
SituationActions
When the area around a camera is cov-
ered with dirt, moisture (fogged up, cov-
ered with condensation, ice, etc.), or
other foreign matter
Using the wiper and A/C function,
remove the dirt and other attached mat-
ter. ( P.290).
When the temperature around the front
camera is outside of the operational
range, such as when the vehicle is in the
sun or in an extremely cold environment
If the front camera is hot, such as after
the vehicle had been parked in the sun,
use the air conditioning system to
decrease the temperature around the
front camera.
If a sunshade was used when the vehicle
was parked, depending on its type, the
sunlight reflected from the surface of the
sunshade may cause the temperature of
the front camera to become excessively
high.
If the front camera is cold, such after the
vehicle is parked in an extremely cold
environment, use the air conditioning
system to increase the temperature
around the front camera.
The area in front of the front camera is
obstructed, such as when the hood is
open or a sticker is attached to the part of
the windshield in front of the front cam-
era.
Close the hood, remove the sticker, etc.,
to clear the obstruction.
When “Pre-Collision System Radar In
Self Calibration Unavailable See
Owner’s Manual” is displayed.
Check whether there is attached materi-
als on the radar sensor and radar sensor
cover, and if there is, remove it.

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4-5. Using the driving support systems
■Enabling/disabling the pre-col-
lision system
The pre-collision system can be
enabled/disabled on ( P.431)
of the multi-information display.
The system is automatically enabled
each time the power switch is turned to
ON.
If the system is disabled, the PCS
warning light will turn on and a
message will be displayed on the
multi-information display.
■Changing the pre-collision
warning timing
The pre-collision warning timing
can be changed on ( P.431) of
the multi-information display.
The warning timing setting is retained
when the power switch is turned off.
However, if the pre-collision system is
disabled and re-enabled, the operation
WARNING
■When to disable the pre-colli- sion system
In the following situations, disable the system, as it may not operate prop-erly, possibly leading to an accident
resulting in death or serious injury:
●When the vehicle is being towed
●When your vehicle is towing another vehicle
●When transporting the vehicle via truck, boat, train or similar means of
transportation
●When the vehicle is raised on a lift
with the hybrid system on and the tires are allowed to rotate freely
●When inspecting the vehicle using a drum tester such as a chassis dynamometer or speedometer tes-
ter, or when using an on vehicle wheel balancer
●When a strong impact is applied to the front bumper or front grille, due to an accident or other reasons
●If the vehicle cannot be driven in a stable manner, such as when the
vehicle has been in an accident or is malfunctioning
●When the vehicle is driven in a sporty manner or off-road
●When the tires are not properly inflated
●When the tires are very worn
●When tires of a size other than
specified are installed
●When tire chains are installed
●When a compact spare tire or an emergency tire puncture repair kit is
used
●If equipment (snow plow, etc.) that may obstruct the radar sensor or front camera is temporarily installed
to the vehicle
Changing settings of the
pre-collision system

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4-5. Using the driving support systems
Driving
●Intersection right/left turn assistance (pre-collision warning)
When the turn signal lights are not flashing, support for turni ng left or right at an inter-
section which targets oncoming vehicles does not work.
●Intersection right/left turn assistance (pre-collision braking)
When the turn signal lights are not flashing, support for turni ng left or right at an inter-
section which targets oncoming vehicles does not work.
■Object detection function
The system detects objects based on their size, profile, motion, etc. However, an object may not be detected depend-
ing on the surrounding brightness and the motion, posture, and angle of the detected object, preventing the system
from operating properly. ( P.217) The illustration shows an image of detectable objects.
■Conditions under which the system
may operate even if there is no pos- sibility of a collision
●In some situations such as the follow-ing, the system may determine that there is a possibility of a frontal colli-
sion and operate. • When passing a detectable object, etc.
• When changing lanes while overtak- ing a detectable object, etc.• When approaching a detectable
object in an adjacent lane or on the roadside, such as when changing the course of travel or driving on a wind-
ing road
Detectable
objectsVehicle speedOncoming vehicle
speed
Relative speed
between your vehicle
and object
VehiclesApprox. 10 to 25 km/h
(7 to 15 mph)
Approx. 30 to 55 km/h
(20 to 35 mph)
Approx. 40 to 80 km/h
(25 to 50 mph)
PedestriansApprox. 10 to 25 km/h
(7 to 15 mph)-Approx. 10 to 25 km/h
(7 to 15 mph)
Detectable
objectsVehicle speedOncoming vehicle
speed
Relative speed
between your vehicle
and object
VehiclesApprox. 15 to 25 km/h
(10 to 15 mph)
Approx. 30 to 45 km/h
(20 to 28 mph)
Approx. 45 to 70 km/h
(28 to 43 mph)
PedestriansApprox. 10 to 25 km/h
(7 to 15 mph)-Approx. 10 to 25 km/h
(7 to 15 mph)

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4-5. Using the driving support systems
Driving
• While making a right/left turn, when a
pedestrian approaches from behind or side of your vehicle
●In addition to the above, in some situ-ations, such as the following, the emergency steering assist may not
operate. • When the white (yellow) lane lines are difficult to see, such as when they are
faint, diverging/merging, or a shadow is cast upon them• When the lane is wider or narrower
than normal • When there is a light and dark pattern on the road surface, such as due to
road repairs • When a pedestrian is detected near the centerline of the vehicle
• When the target is too close • When there is insufficient safe or unobstructed space for the vehicle to
be steered into • If oncoming vehicle is present• If VSC function is operating
●In some situations such as the follow-ing, sufficient braking force or steering
force may not be obtained, preventing the system from performing properly:• If the braking functions cannot operate
to their full extent, such as when the brake parts are extremely cold, extremely hot, or wet
• If the vehicle is not properly main-
tained (brakes or tires are excessively
worn, improper tire inflation pressure, etc.)• When the vehicle is being driven on a
gravel road or other slippery surface • When the road surface has deep wheel tracks
• When driving on a hill road • When driving on a road that has inclines to the left or right
■If VSC is disabled
●If VSC is disabled ( P.278), the pre- collision brake assist and pre-collision
braking functions are also disabled.
●The PCS warning light will turn on and
“VSC Turned OFF Pre-Collision Brake System Unavailable” will be displayed on the multi-information display.

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4-5. Using the driving support systems
*: If equipped
While driving on a road with clear
white (yellow) lane lines, the LTA
system warns the driver if the vehi-
cle may deviate from the current
lane or course*, and also can
slightly operate the steering wheel
to help avoid deviation from the
lane or course*. Also, while the
dynamic radar cruise control with
full-speed range is operating, this
system will operate the steering
wheel to maintain the vehicle’s lane
position.
The LTA system recognizes white
(yellow) lane lines or a course*
using the front camera. Additionally,
it detects preceding vehicles using
the front camera and radar.
*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
LTA (Lane Tracing
Assist)*
Summary of functions
WARNING
■Before using LTA system
●Do not rely solely upon the LTA sys-
tem. The LTA system does not automatically drive the vehicle or reduce the amount of attention that
must be paid to the area in front of the vehicle. The driver must always assume full responsibility for driving
safely by paying careful attention to the surrounding conditions and operating the steering wheel to cor-
rect the path of the vehicle. Also, the driver must take adequate breaks when fatigued, such as from
driving for a long period of time.
●Failure to perform appropriate driv-
ing operations and pay careful attention may lead to an accident, resulting in death or serious injury.
■Situations unsuitable for LTA system
In the following situations, use the LTA switch to turn the system off. Fail-ure to do so may lead to an accident,
resulting in death or serious injury.
●Vehicle is driven on a road surface
which is slippery due to rainy weather, fallen snow, freezing, etc.
●Vehicle is driven on a snow-cov-ered road.
●White (yellow) lines are difficult to see due to rain, snow, fog, dust, etc.
●Vehicle is driven in a temporary lane or restricted lane due to con-
struction work.
●Vehicle is driven in a construction
zone.
●A spare tire, tire chains, etc., are
equipped.
●When the tires have been exces-
sively worn, or when the tire infla- tion pressure is low.

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4-5. Using the driving support systems
Driving
WARNING
●When your vehicle is towing a trailer (vehicles with towing pack-
ages) or during emergency towing
■Preventing LTA system malfunc-
tions and operations performed by mistake
●Do not modify the headlights or
place stickers, etc., on the surface of the lights.
●Do not modify the suspension, etc. If the suspension, etc., needs to be replaced, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
●Do not install or place anything on the hood or grille. Also, do not install a grille guard (bull bars, kan-
garoo bar, etc.).
●If your windshield needs repairs,
contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
■Conditions in which functions may not operate properly
In the following situations, the func- tions may not operate properly and the vehicle may depart from its lane.
Drive safely by always paying careful attention to your surroundings and operate the steering wheel to correct
the path of the vehicle without relying solely on the functions.
●When the follow-up cruising dis-play is displayed ( P.225) and the preceding vehicle changes lanes.
(Your vehicle may follow the pre- ceding vehicle and also change lanes.)
●When the follow-up cruising dis-play is displayed ( P.225) and the
preceding vehicle is swaying. (Your vehicle may sway accordingly and depart from the lane.)
●When the follow-up cruising dis-play is displayed ( P.225) and the
preceding vehicle departs from its lane. (Your vehicle may follow the preceding vehicle and depart from
the lane.)
●When the follow-up cruising dis-
play is displayed ( P.225) and the preceding vehicle is being driven extremely close to the left/right lane
line. (Your vehicle may follow the preceding vehicle and depart from the lane.)
●Vehicle is being driven around a sharp curve.
●Objects or patterns that could be mistaken for white (yellow) lines are
present on the side of the road (guardrails, reflective poles, etc.).

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4-5. Using the driving support systems
WARNING
●Vehicle is driven where the road diverges, merges, etc.
●Repair marks of asphalt, white (yel-low) lines, etc., are present due to
road repair.
●There are shadows on the road that
run parallel with, or cover, the white (yellow) lines.
●The vehicle is driven in an area without white (yellow) lines, such as in front of a tollgate or checkpoint,
or at an intersection, etc.
●The white (yellow) lines are
cracked, “Raised pavement marker” or stones are present.
●The white (yellow) lines cannot be seen or are difficult to see due to sand, etc.
●The vehicle is driven on a road sur-face that is wet due to rain, pud-dles, etc.
●The traffic lines are yellow (which may be more difficult to recognize
than lines that are white).
●The white (yellow) lines cross over
a curb, etc.
●The vehicle is driven on a bright
surface, such as concrete.
●If the edge of the road is not clear
or straight.
●The vehicle is driven on a surface
that is bright due to reflected light, etc.
●The vehicle is driven in an area where the brightness changes sud-denly, such as at the entrances and
exits of tunnels, etc.
●Light from the headlights of an
oncoming vehicle, the sun, etc., enters the camera.
●The vehicle is driven on a slope.
●The vehicle is driven on a road
which tilts left or right, or a winding road.
●The vehicle is driven on an unpaved or rough road.
●The traffic lane is excessively nar-row or wide.
●The vehicle is extremely tilted due to carrying heavy luggage or having improper tire pressure.
●The distance to the preceding vehi-cle is extremely short.
●The vehicle is moving up and down a large amount due to road condi-
tions during driving (poor roads or road seams).

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4-5. Using the driving support systems
Driving
■Lane departure alert function
When the system determines that
the vehicle might depart from its
lane or course*, a warning is dis-
played on the multi-information dis-
play, and either a warning buzzer
will sound or the steering wheel will
vibrate to alert the driver.
When the warning buzzer sounds or
the steering wheel vibrates, check the
area around your vehicle and carefully
operate the steering wheel to move the
vehicle back to the center of the lane.
Vehicle with BSM: When the system
determines that the vehicle might
depart from its lane and that the possi-
bility of a collision with an overtaking
vehicle in the adjacent lane is high, the
lane departure alert will operate even if
the turn signals are operating.
*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
■Steering assist function
When the system determines that
the vehicle might depart from its
lane or course*, the system pro-
vides assistance as necessary by
operating the steering wheel in
small amounts for a short period of
time to keep the vehicle in its lane.
Vehicle with BSM: When the system
determines that the vehicle might
depart from its lane and that the possi-
bility of a collision with an overtaking
vehicle in the adjacent lane is high, the
steering assist function will operate
even if the turn signals are operating.
*: Boundary between asphalt and the
WARNING
●When driving in a tunnel or at night with the headlights off or when a
headlight is dim due to its lens being dirty or it being misaligned.
●The vehicle is struck by a cross-wind.
●The vehicle is affected by wind from a vehicle driven in a nearby lane.
●The vehicle has just changed lanes or crossed an intersection.
●Tires which differ by structure, man-ufacturer, brand or tread pattern are used.
●When tires of a size other than specified are installed.
●Snow tires, etc., are equipped.
●The vehicle is being driven at extremely high speeds.
Functions included in LTA
system