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4-5. Using the driving support systems
4
Driving
IS350/300/200t_U (OM53D18U)
● When driving on roads that are branching or merging
● 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 at nighttime is reduced due to dirt on the lenses, or when
the headlights are misaligned
● When driving on winding roads or roads that are uneven
● When driving on rough or unpaved roads
■ When changing the tires
Depending on the tires used, sufficient performance may not be maintainable.
■ 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. 486)
■ 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.
● When driving with tire chains, a spare tire, or similar equipment
● When there are objects or structures along the roadside that might be misinterpreted
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 pavement 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
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