{"nhtsa_id":10030673,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2009-11-10","date":"2008-11-01","document_id":"PIT-4748","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING:TURN SIGNAL; EXTERIOR LIGHTING:BRAKE LIGHTS","mfr_system":null,"summary":"CHEVROLET/GMC: SOME VEHICLE UPFITTERS, PRIOR TO COMPLETION OF THEIR WORK ON THE INCOMPLETE VEHICLE (CUTAWAY VANS), MAY COMMENT THAT THE RIGHT REAR TURN SIGNAL AND STOP LAMPS ARE BOTH INOPERATIVE. THIS CAN BE CAUSED IF CIRCUIT 6519 IS IN THE WRONG CAVITY ON CONNECTOR X2 AT THE UNDERHOOD FUSE BLOCK. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10030673","components":[{"id":"lighting","name":"Lighting","parent":null},{"id":"brake-light","name":"Brake lights","parent":"lighting"},{"id":"turn-signal","name":"Turn signals","parent":"lighting"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2009,"year_to":2009,"match":"exact","vehicle_ids":["2009_chevrolet_express"]},{"make":"GMC","model":"SAVANA","year_from":2009,"year_to":2009,"match":"exact","vehicle_ids":["2009_gmc_savana"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}