2013 Lexus GS 450h Owners Manual - Page 228

252 4-5. Using the driving support systems Functions included in the LKA 1 Lane departure warning function If the system judges that the vehicle may deviate from its lane, it alerts the driver using beeping, screen displays 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. 2 Lane keeping assist function • This function will be active when the vehicle-to-vehicle distance control mode of the cruise control (→P. 236) is set with vehicle speed above approximately 45 mph (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. The lane keeping assist function will be temporarily canceled if the steering wheel is not operated, or if you continue driving with your hands lightly touching the steering wheel. (→P. 256) GS450h_U (OM30D01U)