2011 Lexus HS 250h Owners Manual - Page 224
2011 Lexus HS 250h Manual
Page 224 highlights
2-4. Using other driving systems LKA (Lane-Keeping Assist)∗ While driving on a freeway or motor highway that has lane markers, 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 functions. n 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* given via the steering wheel. *:A slight steering torque is applied for a short period of time in the direction of the center of the lane. n Lane keeping assist function This function will be active when the vehicle-to-vehicle distance control mode of the cruise control (→P. 208) is set with vehicle speed above approx. 45 mph (approx. 72 km/h) and while the lane departure warning function is active. When the lane keeping assist function is active, a slight steering torque will be applied, to help the driver maintain the vehicle inside the lane. 2 When driving 221 ∗: If equipped