Main mobility is recalling 185 model year 2005 through 2009 Chevrolet express and GMC Savana vans manufactured between April 1, 2005 and June 25, 2009, equipped with ricon platform style wheelchair lifts. These vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard no. 403, "platform lift installations in motor vehicles." The anti-stow interlock may not detect the presence of a wheelchair or mobility aid user. The pressure sensing switch that detects the presence of weight on the platform was not adjusted to the necessary sensitivity level. The lift could stow even though someone or something is still on the lift.