2007 Jeep Grand Cherokee Owner's Manual - Page 139

UNDERSTANDING THE FEATURES OF YOUR VEHICLE 139 Rear Park Assist Sensors The four Rear Park Assist Sensors, located in the rear fascia, monitor the area behind the vehicle that is within the sensors' field of view. The monitored area seems oval in shape. The sensors can detect obstacles from approximately 11.8 inches (30 cm) up to 59 inches (150 cm) from the rear fascia in the horizontal direction, depending on the location and orientation of the obstacle and the type of obstacle. Rear Park Assist Warning Display The Rear Park Assist Warning Display, located in the headliner near the flipper glass, provides both visual and audible warnings to indicate the distance between the rear fascia and the detected obstacle. Rear Park Assist Display 3 When the ignition is changed to the RUN/ON position, the warning display will turn ON all of its LEDs for about 1 second. Each side of the warning display has 6 yellow and 2 red LEDs. The vehicle is close to the obstacle when the red LED is ON.