Conditions In Which The Function May Not Operate Correctly - Toyota 2016 Highlander Service Manual

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4-5. Using the driving support systems
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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.
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When driving through an area with no lane markers, such as a tollbooth, a
crossing or before a ticket checkpoint
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When driving on a sharp curve
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When lane markers are extremely narrow or extremely wide
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When the vehicle leans to one side an unusual amount due to a heavy load
or improper tire inflation pressure
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When the following distance between your vehicle and the vehicle ahead is
extremely short
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When the lane markers are yellow (These may be more difficult for the sys-
tem to recognize compared to white markers.)
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When the lane markers are broken, Botts' dots (raised pavement markers)
or stones
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When the lane markers are on a curb etc.
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When lane markers are obscured or partially obscured by sand, dirt, etc.
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When there are shadows on the road running parallel with lane markers, or
if a shadow covers the lane markers
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When driving on a particularly bright road surface, such as concrete
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When driving on a road surface that is bright due to reflected light
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When driving in a location where the light level changes rapidly, such as the
entrance to or exit from a tunnel
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When sunlight or the headlights of oncoming vehicles are shining directly
into the camera lens
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When driving on roads that are branching or merging
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When driving on a road surface that is wet due to rain, previous rainfall,
standing water, etc.
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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
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When headlight brightness at nighttime is reduced due to dirt on the lenses,
or when the headlights are misaligned
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When driving on winding roads or roads that are uneven
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When driving on rough or unpaved roads
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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 the
driver of the need for caution while driving. (P. 584)
HIGHLANDER_U (OM48F09U)