Lka (Lane-Keeping Assist) - Toyota Prius 2011 Manual

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2-4. Using other driving systems

LKA (Lane-Keeping Assist)

While driving on a freeway or motor highway that has lane markings,

this system recognizes the lanes using a camera as a sensor to

assist the driver with staying in the lane. The LKA system has two

Lane departure warning function

If the system judges that the vehicle may deviate from its lane, it

alerts the driver using rapid beeping, indications on the multi-

information display, and a sensory warning

: A slight steering torque is applied for a short period of time in

the direction of the center of the lane.

Lane keeping assist function

This function will be active when the vehicle-to-vehicle distance

control mode of the cruise control (P. 221) is set with vehicle

speed above approx. 50 mph (approx. 75 km/h) and while the

lane departure warning function is active. When the lane keep-

ing assist function is active, a slight steering torque will be

applied, to help the driver maintain the vehicle inside the lane.

given via the steer-

: If equipped