2006 Lexus RX 400h Owners Manual - Page 464

STARTING AND DRIVING Dynamic laser cruise control should not be used in circumstances which are inappropriate for any cruise control, such as entering free way on−ramps or off−ramps. CAUTION D Do not use dynamic laser cruise control when exiting from or when entering or merging onto a freeway. When you are following a slower moving vehicle and exiting, the sensor does not detect the vehicle and will accelerate to the preset speed. D If other vehicles are driving outside of the laser radar detection range, a delay in the detection of the vehicle cutting in at short range or failure to detect a motorcycle running on the side of the same lane will occur. In this case, the dynamic laser cruise control system will not function properly. D When a slower vehicle in front of you leaves the lane, the dynamic laser cruise control will no longer detect a vehicle ahead and will attempt to accelerate the vehicle to the faster preset speed. 428