I have a 2008 Town and Country Van. About 2 weeks ago all of the dash warning lights came on and stayed on for 2 days. No problems with performance. Then they went off after the couple of days. Today, the windshield wiper came on all of a sudden for a few seconds and then went off. Then all of the dash warning lights began going on and off along with the "warning dinging sound". Obviously, turning the van off and on has not helped. Any suggestions?