Sunset Vans is recalling certain models of the 2005 through 2007 Econoline, G series and Sprinter trucks built on Ford, Dodge and Chevrolet chassis and equipped with Ricon platform style wheelchair lifts. They stated that these vehicles fail to comply with federal motor vehicle safety standard No. 404, “Platform lift installations in motor vehicles.” The threshold warning system may not detect the presence of a wheelchair or mobility aid user in a certain spot within the defined threshold areas.