VEHICLE WITH DETECTION SYSTEM FOR DETECTING GROUND SURFACE AND SUB-SURFACE OBJECTS, AND METHOD FOR CONTROLLING VEHICLE

A detection system for use with a powered ground maintenance vehicle, the detection system adapted to detect and avoid contact of a ground maintenance implement carried by the vehicle with an object associated with the ground surface. In some embodiments, the detection system may automatically disengage the implement from the ground surface before the implement contacts the object and, optionally, automatically re-engage the implement with the ground surface after the implement has passed the object.