2011 Toyota Prius Owners Manual - Page 273

2-4. Using other driving systems n Temporary cancellation of the LKA system functions If any of the following occurs, the LKA system functions will be temporarily canceled. The functions will resume after the necessary operating conditions have returned. l The turn signal lever is operated. l The steering wheel is turned as far as necessary to cause the vehicle to change lanes. l The brake pedal is depressed. The lane keeping assist function will not resume even after the brake pedal is released because depressing the brake pedal also cancels the dynamic radar cruise control. l The vehicle speed deviates from the operating range of the LKA system functions. (The buzzer will beep twice when the lane keeping assist function is being canceled.) l When the lane lines cannot be recognized while driving. (The buzzer will beep twice when the lane keeping assist function is being canceled.) l Low speed or high speed wiper operation states. (The buzzer will beep twice when the lane keeping assist function is being canceled.) The buzzer may not beep when the LKA system functions are canceled because the notification of dynamic radar cruise control cancellation takes priority over the LKA system and cancels the function. l The no-handed driving warning activates while the lane keeping assist function is active. (The buzzer will beep twice.) l When the lane departure warning function is activated. Once the lane departure warning function is activated, it will be temporarily canceled and resume a few seconds later. 2 When driving 247 PRIUS_U (OM47685U) DVD