2014 Ford Explorer Owner Manual Printing 1 - Page 249

248 Blocked Sensor Cruise Control WARNING: Do not use ACC when towing a trailer with brake controls. Aftermarket trailer brakes will not function properly when ACC is activated because the brakes are electronically controlled. Failing to do so may result in loss of vehicle control, which could result in serious injury. WARNING: Do not use tires sizes other than those recommended because this can affect the normal operation of ACC. Failing to do so may result in a loss of vehicle control, which could result in serious injury. A message regarding a blocked sensor is displayed if 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. A vehicle ahead cannot be detected and the system will not function when the radar signals are obstructed. The following table lists possible causes and actions for this message being displayed. 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. Do not use the system in these conditions because it may not detect any vehicle ahead. 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. Heavy rain or snow is interfering with the radar signals. 2014 Explorer (exp) Owners Guide gf, 1st Printing, April 2013 USA (fus)