2005 Lexus LS 430 Owners Manual - Page 385

STARTING AND DRIVING CAUTION D Deceleration cruising function and approach warning do not operate when the vehicle ahead is at a stop or driving very slowly D While vehicle−to−vehicle distance control (follow−up cruising) is on, acceleration and deceleration are automatically performed in proportion to the speed of the vehicle ahead detected. However, if the vehicle ahead of you decelerates abruptly or if another vehicle cuts in ahead of you, your vehicle may collide with the vehicle ahead unless you manually depress the brake pedal to slow down your vehicle. If you need to accelerate because the vehicle ahead or you changes lanes, then depress the acceleration pedal. D Depending on the road configuration (curved roads, left and right continuous curved roads, driving at the start or end of the curve, narrow driving lanes due to road construction) or your vehicle condition (steering wheel maneuvering, position in the lane or unstable driving because of an accident or breakdown), vehicles in other lanes or surrounding objects will be detected, resulting in a control failure or the activated approach warning. This may also result in a very close distance between vehicles due to a failure to detect the vehicle ahead. Maneuvering the steering wheel in response to a violent lateral wind will cause similar conditions. 31L588 CAUTION If other vehicles are driving outside of the millimeter wave radar or laser radar detection range, a delay in the detection of the vehicle cutting in at short range or detection failure of the motorcycle running on the side of the same lane will occur. In this case, the dynamic radar/laser cruise control system will not function properly. 346