Toyota PRIUS ALPHA 2012 Quick Reference Manual page 308

2-4. Using other driving systems
NOTICE
●
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 pavement lane markers are difficult to see due to rain, snow, fog,
etc.
●
When driving on a road surface that is wet due to rain, previous rainfall,
standing water, etc.
●
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 is reduced due to dirt on the lenses, or when
the headlights are misaligned.
●
When driving with a strong crosswind.
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