2011 Lincoln MKT Owner Guide 1st Printing - Page 130

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 Heavy rain or snow is interfering with the radar signals 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 ACC in these conditions because it may not detect, warn, or respond to potential collisions. Do not use ACC in these conditions because it may not detect, warn, or respond to potential collisions. Swirling water, or snow or ice on the surface of the road may interfere with the radar signals 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. 130 2011 MKT (mkt) Owners Guide, 1st Printing USA (fus)