Functions Included In Lta System; Lane Departure Alert Function - Lexus is300 2021 Service Manual

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WARNING
Light from the headlights of an oncom-
ing vehicle, the sun, etc. enters the
camera.
The vehicle is driven on a slope.
The vehicle is driven on a road which
tilts left or right, or a winding road.
The vehicle is driven on an unpaved or
rough road.
The traffic lane is excessively narrow
or wide.
The vehicle is extremely tilted due to
carrying heavy luggage or having
improper tire pressure.
The distance to the preceding vehicle
is extremely short.
The vehicle is moving up and down a
large amount due to road conditions
during driving (poor roads or road
seams).
When driving in a tunnel or at night
with the headlights off or when a head-
light is dim due to its lens being dirty or
it being misaligned.
The vehicle is struck by a crosswind.
The vehicle is affected by wind from a
vehicle driven in a nearby lane.
The vehicle has just changed lanes or
crossed an intersection.
Tires which differ by structure, manu-
facturer, brand or tread pattern are
used.
When tires of a size other than speci-
fied are installed.
Snow tires, etc. are equipped.
The vehicle is being driven at
extremely high speeds.
4-5. Using the driving support systems

Functions included in LTA system

Lane departure alert function

When the system determines that the
vehicle might depart from its lane or
*
course
, a warning is displayed on the
multi-information display, and either a
warning buzzer will sound or the steer-
ing wheel will vibrate to alert the driver.
When the warning buzzer sounds or the
steering wheel vibrates, check the area
around your vehicle and carefully operate
the steering wheel to move the vehicle
back to the center of the lane.
Vehicle with BSM: When the system deter-
mines that the vehicle might depart from its
lane and that the possibility of a collision
with an overtaking vehicle in the adjacent
lane is high, the lane departure alert will
operate even if the turn signals are operat-
ing.
*
: Boundary between asphalt and the side
of the road, such as grass, soil, or a curb
183
4

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