2015 TOYOTA PRIUS V light

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PRIUS v_OM_OM47887U_(U)
4-5. Using the driving support systems
WARNING
■Handling the radar sensor
Observe the following to ensure the cruise control system can function
effectively.
Otherwise, the system may not function correctly and could result in an
accident.
● Keep the sensor and grille cover clean at all times.
Clean the sensor and grille cover with a soft cloth so you do not mark or
damage them.
● Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may become
inaccurate or malfunction. If the sensor or surrounding area is subject to a
strong impact, always have the area inspected and adjusted by a Toyota
dealer.
● Do not disassemble the sensor.
● Do not attach accessories or stickers to the sensor, grille cover or sur-
rounding area.
● Do not modify or paint the sensor and grille cover.
● Do not replace them with non-genuine parts.

PRIUS v_OM_OM47887U_(U)
2294-5. Using the driving support systems
4
Driving
■LDA indicator
Even if the LDA switch is pressed, when the LDA indicator does not come on
the system may have a malfunction. Have the vehicle inspected by your Toy-
ota dealer immediately.
■ Alert buzzer for lane departure alert
Depending on the audio system sound level or air conditioning fan noise
while the audio system or air conditioning system is in use, it may be difficult
to hear the alert buzzer.
■ After the vehicle has been parked in the sun
The LDA may not be available and a warning message will be displayed for a
while after driving has started. When the temperature in the cabin decreases
and the temperature around the camera sensor ( P. 225) becomes suitable
for its operation, turn the LDA switch on again after a short time.
■ If there are lane markers on only one side of the vehicle
The lane departure alert will not oper ate for the side on which lane markers
could not be recognized.
■ Conditions in which the function may not operate correctly
In the following situations, the camera sensor may be unable to recognize
lane markers causing the lane departure alert function to operate incorrectly.
However, this does not indicate a malfunction.
●When there are shadows on the road running parallel with lane markers, or
if a shadow covers the lane markers
● When driving through an area with no lane markers, such as a toll booth, a
crossing or before a ticket checkpoint
● When the lane markers are broken, Botts’ dots (raised pavement markers)
or stones
● When lane markers are obscured or partially obscured by sand, dirt, etc.
● When driving on a road surface that is wet due to rain, previous rainfall,
standing water, etc.
● When the lane markers are yellow (These may be more difficult for the sys-
tem to recognize compared to white markers.)
● When the lane markers are on a curb, etc.
● When driving on a particularly bright road surface, such as concrete
● When driving on a road surface that is bright due to reflected light
● When driving in a location where the light level changes rapidly, such as the
entrance to or exit from a tunnel
● When sunlight or the headlights of oncoming vehicles are shining directly
into the camera lens
● When driving on roads that are branching or merging
● When driving on winding roads or roads that are uneven

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PRIUS v_OM_OM47887U_(U)
4-5. Using the driving support systems
●When driving on rough or unpaved roads
● When driving on a sharp curve
● When lane markers are extremely narrow or extremely wide
● When the vehicle leans to one side an unusual amount due to a heavy load
or improper tire inflation pressure
● When the following distance between your vehicle and the vehicle ahead is
extremely short
● When the vehicle experiences strong up-and-down motion such as when
driving on an extremely rough road or on a seam in the pavement
● When headlight brightness at nighttime is reduced due to dirt on the lenses,
or when the headlights are misaligned
■ When changing the tires
Depending on the tires used, sufficient performance may not be maintainable.
■ Warning messages for the LDA
Warning messages are used to indicate a system malfunction or to inform t\
he
driver of the need for caution while driving. If a warning message is sh\
own on
the multi-information display, read the message and follow the instructions.
Also, even if a warning message is displayed, it will not impede normal driv-
ing.

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PRIUS v_OM_OM47887U_(U)
4-5. Using the driving support systems
NOTICE
■To prevent damage to or inco rrect operation of the LDA
Observe the following to ensure that the LDA system functions correctly
● Do not modify the headlights or attach stickers to the surface of the lights.
● Do not modify the suspension. When performing a replacement, contact
your Toyota dealer.
● Do not install or place anything on the hood or the grille. Also, do not install
a grille guard (bull bars, kangaroo bar, etc.).
● If your windshield needs repairs, contact your Toyota dealer.
■ Camera sensor
Observe the following to ensure that the LDA system functions correctly
● Keep the windshield clean at all times.
Performance could be affected if the windshield is dirty, or if raindrops,
condensation or ice are adhering to the windshield.
● Do not spill liquids onto the camera sensor.
● Do not attach window tinting to the windshield.
● Do not install an antenna in front of the camera lens.
● If the windshield area in front of the camera sensor is fogged up, use the
windshield defogger to remove the fog from that area. ( P. 364)
When it is cold, using the heater with air blowing to the feet may allow the
upper part of the windshield to fog up. This will have a negative effect on
the images.
● Do not scratch the camera lens, or let it get dirty.
When cleaning the inside of the windshield, be careful not to get any glass
cleaner, etc., on the lens. Also, do not touch the lens.
For lens repair, contact your Toyota dealer.
● Do not change the installation position or direction of the camera sensor or
remove it.
The direction of the camera sensor is precisely adjusted.
● Do not subject the camera sensor to strong impact or force, and do not
disassemble the camera sensor.
● When replacing the windshield, contact your Toyota dealer.
●Do not attach a sticker or other items to
the windshield near the camera sensor.

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PRIUS v_OM_OM47887U_(U)
4-5. Using the driving support systems
■If you notice any symptoms
If you notice any of the following symptoms, refer to the likely cause
and the solution, and re-check.
If the symptom is not resolved by the solution, have the vehicle
inspected by your Toyota dealer.
Things you should know
Likely causeSolution
 The image is difficult to see
• The vehicle is in a dark area
• The temperature around the lens
is either high or low
• The outside temperature is low
• There are water droplets on the camera
• It is raining or humid
• Foreign matter (mud, etc.) is adhering to the camera
• Sunlight or headlights are shining directly into the camera
• The vehicle is under fluorescent
lights, sodium lights, mercury
lights etc.
If this happens due to these causes,
it does not indicate a malfunction.
Back up while visually checking the
vehicle’s surroundings. (Use the
monitor again once conditions have
been improved.)
The procedure for adjusting the pic-
ture quality of the rear view monitor
system is the same as the proce-
dure for adjusting the screen.
 The image is blurry
Dirt or foreign matter (such as water
droplets, snow, mud, etc.) is adher-
ing to the camera.Rinse the camera lens with water
and wipe it clean with a soft cloth.
Wash with a mild soap if the dirt is
stubborn.
The image is out of alignment
The camera or surrounding area has
received a strong impact.Have the vehicle inspected by your
Toyota dealer.
The fixed guide lines are very far out of alignment
The camera position is out of align-
ment.Have the vehicle inspected by your
Toyota dealer.
• The vehicle is tilted (there is a
heavy load on the vehicle, tire
pressure is low due to a tire punc-
ture, etc.)
• The vehicle is used on an incline.If this happens due to these causes,
it does not indicate a malfunction.
Back up while visually checking the
vehicle’s surroundings.

PRIUS v_OM_OM47887U_(U)
2454-5. Using the driving support systems
4
Driving
◆Hill-start assist control
Helps to prevent the vehicle from rolling backward when starting on
an incline or slippery slope
◆PCS (Pre-Collision System) (if equipped)
P. 2 5 1
The slip indicator light will flash
while the VSC/TRAC/ABS sys-
tems are operating.
When the VSC/TRAC/ABS systems are operating

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PRIUS v_OM_OM47887U_(U)
4-5. Using the driving support systems
If the vehicle gets stuck in mud, dirt or snow, the TRAC system may
reduce power from the hybrid system to the wheels. Pressing to
turn the system off may make it eas ier for you to rock the vehicle in
order to free it.
Vehicles without multi-information display
To turn the TRAC system off,
quickly press and release .
The “TRAC OFF” indicator light will
come on.
Press again to turn the system
back on.
Vehicles with multi-information display
To turn the TRAC system off,
quickly press and release .
The message will be shown on the
multi-information display. Press
again to turn the system back
on.
Disabling the TRAC system

PRIUS v_OM_OM47887U_(U)
2474-5. Using the driving support systems
4
Driving
■Turning off both TRAC/VSC systems
To turn the TRAC/VSC systems off, press and hold for more than 3 sec-
onds while the vehicle is stopped.
Vehicles without multi-information display
The “TRAC OFF” and VSC OFF in dicator lights will come on.
Vehicles with multi-information display
The VSC OFF indicator light will come on and the message will be shown on
the multi-information display.
*
Press again to turn the systems back on.
*: On vehicles with pre-collision system, pre-collision brake assist and pre- collision braking will also be disabled. The PCS warning light will come on
and the message will be shown on the multi-information display. ( P. 489)
■ When the “TRAC OFF” indicator co mes on/message is displayed on the
multi-information display showing th at TRAC has been disabled even if
the VSC OFF switch has not been pressed
TRAC cannot be operated. Contact your Toyota dealer.
■ Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC and
hill-start assist control systems
Any of the following conditions may occur when the above systems are oper-
ating. 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.
■ ECB operating sound
ECB operating sound may be heard in the following cases, but it does not
indicate that a malfunction has occurred.
●Operating sound heard from the engine compartment when the brake pedal
is operated.
● Motor sound of the brake system heard from the front part of the vehicle
when the driver’s door is opened.
● Operating sound heard from the engine compartment when 1 or 2 minutes
passed after the stop of the hybrid system.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.