Before Using Lka System - Warning; To Avoid Operating Lka By Mistake; Situations Unsuitable For Lka; Preventing Lka System Malfunctions And Operations Performed By Mistake - Lexus RX 450H Owner's Manual

WARNING
Before using LKA system
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Do not rely solely upon the LKA system. LKA is not a system which automatically
drives the vehicle or reduces the amount of attention that must be paid to the area in
front of the vehicle. The driver must always assume full responsibility for driving safely
by always paying careful attention to the surrounding conditions and operate the steer-
ing wheel to correct the path of the vehicle. Also, make sure to take adequate breaks
when fatigued, such as from driving for a long period of time.
Failure to perform appropriate driving operations and pay careful attention may lead to
an accident, resulting in death or serious injury.

To avoid operating LKA by mistake

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When not using the LKA system, use the LKA switch to turn the system off.

Situations unsuitable for LKA

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Do not use the LKA system in the following situations.
The system may not operate properly and lead to an accident, resulting in death or
serious injury.
A spare tire, tire chains, etc., are equipped.
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When the tires have been excessively worn, or when the tire inflation pressure is low.
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Tires which differ by structure, manufacturer, brand or tread pattern are used.
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Objects or patterns that could be mistaken for white (yellow) lines are present on the
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side of the road (guardrails, curbs, reflective poles, etc.).
Vehicle is driven on a snow-covered road.
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White (yellow) lines are difficult to see due to rain, snow, fog, dust, etc.
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Asphalt repair marks, white (yellow) line marks, etc., are present due to road repair.
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Vehicle is driven in a temporary lane or restricted lane due to construction work.
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Vehicle is driven on a road surface which is slippery due to rainy weather, fallen snow,
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freezing, etc.
Vehicle is driven in traffic lanes other than on highways and freeways.
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Vehicle is driven in a construction zone.
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When your vehicle is towing a trailer or during emergency towing
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Preventing LKA system malfunctions and operations performed by mistake

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Do not modify the headlights or place stickers, etc., on the surface of the lights.
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Do not modify the suspension etc. If the suspension etc. needs to be replaced, con-
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tact your Lexus dealer.
Do not install or place anything on the hood or grille. Also, do not install a grille guard
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(bull bars, kangaroo bar, etc.).
If your windshield needs repairs, contact your Lexus dealer.
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