2017 TOYOTA MIRAI Owners Manual

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Press the LDA switch to activate
the system.
The LDA indicator and lane lines
will come on.
Press the switch again to deacti-
vate the LDA system.
The LDA system will remain on or
off even if the power switch is
turned to ON mode.
●When the vehicle speed is approximately 32 mph (50 km/h) or
more
● When the lane width is more than approximately 8.2 ft. (2.5 m)
● When driving on a straight road or through a curve with a radius of
more than approximately 328 ft. (100 m)
Turning the LDA system on
Operating conditions

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When the inside of both lane lines
turn white:
Indicates that both right and left
lane markers are recognized.
If the vehicle deviates from the
lane, the lane line on the side the
vehicle has deviated from will flash
in yellow.
When the inside of either lane line
turns white:
Indicates that the lane marker on
the white-marked side is recog-
nized.
If the vehicle deviates from the side
of a lane with recognized lane
markers, the lane line will flash in
yellow.
When the inside of both lane lines
are black:
Indicates that no lane markers are
recognized or the LDA system is
temporarily canceled.
Indication on the multi-information display

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■Temporary cancelation of the LDA system functions
If any of the following occurs, the LDA system functions will be temporarily
canceled. The functions will resume after the necessary operating conditions
have returned.
●The turn signal lever is operated.
● The vehicle speed deviates from the operating range of the LDA system
functions.
● When the lane lines cannot be recognized while driving.
● When the lane departure warning function is activated.
The lane departure warning function will not operate again for a several sec-
onds after it has been activated, even if the vehicle leaves the lane again.
■ 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 system may not be available and a warning message is displayed
for a while after driving has started. When the temperature in the cabin
decreases and the temperature around the camera sensor ( →P. 216)
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 operate for the side on which lane markers
could not be recognized.

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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 warning function to operate incor-
rectly. 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
● 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.

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Warning messages for the LDA system
Warning messages are used to indicate a system malfunction or to inform th\
e
driver of the need for caution while driving. If a warning message is shown 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.
WARNING
■Before using the LDA system
Do not rely solely on the LDA system. The LDA system does not drive the
vehicle automatically, nor does it reduce the amount of care you need to
take. As such, the driver must always assume full responsibility for under-
standing his/her surroundings, for operating the steering wheel to correct
the driving line, and for driving safely. Also, take occasional rests from
fatigue due to driving over long periods of time, etc.
Inappropriate or negligent driving could lead to an unexpected accident.
■ To avoid operating the LDA system by mistake
Switch the LDA system off using the LDA switch when not in use.
(→P. 217)
■ Situations unsuitable for LDA system
Do not use the LDA system in any of the following situations.
Otherwise, the system may not function correctly and could result in an
accident.
● When driving with tire chains, a spare tire, or similar equipment
● When there are objects or structures along the roadside that might be mis-
interpreted as lane markers (such as guardrails, a curb, reflector posts,
etc.)
● When driving on snowy roads
● When pavement lane markers are difficult to see due to rain, snow, fog,
sand, dirt, etc.
● When there are visible lines on the pav ement from road repairs, or if the
remains of old lane markers are still visible on the road
● When driving on a road with lane closures due to maintenance, or when
driving in a temporary lane
● When driving through construction areas

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NOTICE
■To prevent damage to or incorr ect operation of the LDA system
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.
If any suspension parts need to be replaced, 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 liquid 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. 261)
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.
● If the windshield needs to be replaced, contact your Toyota dealer.
●Do not attach a sticker or other items to
the windshield near the camera sensor.

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Intuitive parking assist
Front corner sensors
Rear corner sensors
Rear center sensors
The distance from your vehicle to nearby obstacles when paral-
lel parking or maneuvering into a garage is measured by the
sensors and communicated via the displays and a buzzer.
Always check the surrounding area when using this system.
Types of sensors

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ON (activate)/OFF (deactivate) can be changed by the [set-
tings display] for the Mu lti-information Display (→P. 107)
Press either or on the
meter control switches ( →P. 108)
and select
Each press of of the meter control switches, changes ON and
OFF. When ON is selected, the intuitive parking assist indicator
turns on.
Turning the intuitive parking assist system on
1
2