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Conditions in which the function may not operate or detect correctly
In the following situations, RSA does not operate normally and may not rec-
ognize signs, display the incorrect sign, etc. However, this does not indicate a
malfunction.
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The front camera is misaligned due to a strong impact being applied to the
sensor, etc.
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Dirt, snow, stickers, etc. are on the windshield near the front camera.
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In inclement weather such as heavy rain, fog, snow or sand storms
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Light from an oncoming vehicle, the sun, etc. enters the front camera.
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The sign is dirty, faded, tilted or bent.
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The contrast of electronic sign is low.
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All or part of the sign is hidden by the leaves of a tree, a pole, etc.
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The sign is only visible to the front camera for a short amount of time.
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The driving scene (turning, lane change, etc.) is judged incorrectly.
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If a sign not appropriate for the currently traveled lane, but the sign exists
directly after a freeway branches, or in an adjacent lane just before merging.
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Stickers are attached to the rear of the preceding vehicle.
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A sign resembling a system compatible sign is recognized.
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Side road speed signs may be detected and displayed (if positioned in sight
of the front camera) while the vehicle is traveling on the main road.
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Roundabout exit road speed signs may be detected and displayed (if posi-
tioned in sight of the front camera) while traveling on a roundabout.
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The front of the vehicle is raised or lowered due to the carried load
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The surrounding brightness is not sufficient or changes suddenly.
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When a sign intended for trucks, etc. is recognized.
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The speed information displayed on the meter and on the navigation system
may be different due to the navigation system using map data.
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Speed limit sign display
If the power switch was last turned off while a speed limit sign was displayed
on the main display or multi-information display, the same sign displays again
when the power switch is turned to ON mode.
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If "RSA Malfunction Visit Your Dealer" is shown
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer.
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Customization
Some functions can be customized. (Customizable features: P. 518)
4-5. Using the driving support systems
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