2007 Lexus ES 350 Navigation Manual - Page 263

ES350_Navi_U (L/O 0603) INTUITIVE PARKING ASSIST 259 - Rear corner sensors Multi-information display: The indicator bars come on depending on the distance to the obstacle and flash when the distance between the vehicle and the obstacle is less than about 0.8 ft. (25 cm). Touch screen: When an obstacle is detected, indicator bars illuminate in yellow. The number of the indicator bars reduces as the vehicle gets closer to the obstacle, and turn red when the distance between the vehicle and obstacle is less than 0.8 ft. (25 cm). Beeps: As distance to the obstacle gets closer, the interval of the intermittent sound gets shorter, and then finally changes to a continuous sound when the distance between the vehicle and the obstacle is less than about 0.8 ft. (25 cm). " Multi-information display CAUTION When reversing, be sure to visually confirm a safe distance around your vehicle to avoid an accident. " Touch screen 1 About 1.1 ft. (37.5 cm) to about 1.5 ft. (50 cm) 2 About 0.8 ft. (25 cm) to about 1.1 ft. (37.5 cm) 3 Less than about 0.8 ft. (25 cm) The rear corner sensor only operates when the vehicle speed is less than about 6 mph (10 km/h) and the transmission is in "R", it checks the approximate distance to obstacles at an angle to the rear of the vehicle, and sounds a warning depending on the distance.