2012 Ford Explorer Owner Guide 2nd Printing - Page 107

Driver Controls Blocked sensor If a message regarding a blocked sensor is displayed, the radar signals from the sensor have been obstructed. The sensor is located behind a fascia cover near the driver side of the lower grille. When the radar signals are obstructed, a vehicle ahead cannot be detected and the ACC will not function. The following table lists possible causes and actions for this message being displayed. Cause The surface of the radar in the grille is dirty or obstructed in some way The surface of the radar in the grille is clean but the message remains in the display Action Clean the grille surface in front of the radar or remove the object causing the obstruction Wait a short time. It may take several minutes for the radar to detect that it is no longer obstructed Heavy rain or snow is interfering Do not use ACC in these condition with the radar signals because it may not detect, warn, or respond to potential collisions. Swirling water, or snow or ice on Do not use ACC in these condition the surface of the road may because it may not detect, warn, interfere with the radar signals or respond to potential collisions. Desert / remote area with no other Wait a short time or switch to vehicles and no roadside objects normal cruise control. Due to the nature of radar technology, it is possible to get a blockage warning and not be blocked. This can happen, for example, when driving in sparse rural or desert environments. A false blocked condition will either self clear or clear after a key cycle. 107 2012 Explorer (exp) Owners Guide, 2nd Printing USA (fus)