Owner's Manual
Page 76
... brakes will not function properly when ACC is no longer obstructed Do not use ACC when towing a trailer 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. Driver Controls 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 brake controls...
... brakes will not function properly when ACC is no longer obstructed Do not use ACC when towing a trailer 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. Driver Controls 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 brake controls...