Lexus RC300h 2017, Manual

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4-5. Using the driving support systems
4
Dr
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RC300h_EE(OM24740E)
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When sunlight or the headlights of oncoming vehicles are shining directly into the cam-
era 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
■
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. 549)
WARNING
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Before using the LDA system
Do not rely solely on the LDA system. The LDA system does not drive the vehicle auto-
matically, nor does it reduce the amount of care you need to take. As such, the driver
must always assume full responsibility for understanding his/her surroundings, for
operating the steering wheel to correct the driving line, and for driving safely.
Inappropriate or negligent driving could lead to an accident.
■
To avoid operating the LDA by mistake
Switch the LDA system off using the LDA switch when not in use.
■
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.
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When driving with tire chains, a spare tire, or similar equipment
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When there are objects or structures along the roadside that might be misinterpreted
as lane markers (such as guardrails, a curb, reflector posts, etc.)
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When driving on snowy roads
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When pavement lane markers are difficult to see due to rain, snow, fog, sand, dirt, etc.
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When there are visible lines on the pavement from road repairs, or if the remains of
old lane markers are still visible on the road
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When driving on a road with lane closures due to maintenance, or when driving in a
temporary lane