2012 Lexus HS 250h Owners Manual - Page 235
2012 Lexus HS 250h Manual
Page 235 highlights
2-4. Using other driving systems CAUTION
235
2-4. Using other driving systems
2
When driving
CAUTION
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Before using the LKA system
Do not rely on the LKA system to remain within a selected lane. The LKA system is
not designed to enable inattentive driving. The steering wheel should be operated
by the driver to maintain the vehicle in a suitable position within its lane. Always
drive carefully.
■
Turn the LKA off while driving in any of the following conditions:
Do not use LKA in any of the following situations.
Otherwise, the system may not function correctly and could result in an accident.
●
When driving with snow tires, tire chains, a spare tire, or similar equipment.
●
When driving with non-standard parts or aftermarket equipment installed.
(including modified tires and suspensions, etc.)
●
When towing a trailer.
●
When there are objects or structures along the roadside that might be misinter-
preted as lane markers. (such as guardrails, curb, reflector posts, etc.)
●
When there are wheel ruts, icy trademarks, etc. or if snow remains on the road
surface.
●
When there are shadows on the road running parallel with lane markers, or if a
shadow covers the lane markers.
●
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 slippery roads, such as those covered with rain, ice or snow.
●
When driving in a lane other than the driving or passing lanes on a freeway or
highway.
●
When driving on a road with lane closures due to maintenance, or when driving
in a temporary lane.
●
When driving on winding roads or roads that are rough or uneven.