why the running lights stay on after van is off? on 2003 GMC Savana 3500

Tried a new battery and alternator and still the lights stay on

by in Bucksport, ME on April 30, 2011
1 answer
ANSWER by , April 30, 2011
Suspect the headlight switch for prob. Have checked carefully by qualified tech. There may also be a timer problem with body control module.