2005 Lexus RX 330 Owners Manual - Page 459

STARTING AND DRIVING (i) Braking control CAUTION Braking control will not ensure that your vehicle will reduce speed appropriately. You must depress the brake pedal to slow down, ensuring collision avoidance or that sufficient vehicle−to−vehicle distance is maintained. Dynamic laser cruise control is not a collision avoidance system. If the approach warning is activated, depress the brake pedal to decelerate to ensure an appropriate vehicle−to−vehicle distance. If you are getting closer to the vehicle ahead at a relatively higher speed than that of the vehicle ahead or if engine braking cannot be applied properly, braking control is automatically activated. At this time, the display flashes. Braking control is operating only when the vehicle−to−vehicle distance control mode is selected and your vehicle speed exceeds about 40 km/h (25 mph). If the speed decreases below about 40 km/h (25 mph), braking control will cease, requiring the manual application of brakes. 428