{"nhtsa_id":10039506,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2011-08-01","date":"2011-06-01","document_id":"PI-0491","mfr_campaign":null,"replaces":null,"component":"WHEELS","mfr_system":null,"summary":"GM: 2006-2011 IMPALA. A CLUNK NOISE IS COMING FROM UNDER THE FRONT OF THE VEHICLE WHEN DRIVING AND/OR WHEN PUTTING THE TRANSMISSION IN DRIVE OR REVERSE. THIS MAY BE CAUSED BY DAMAGED MOUNTING AREAS. THE FRAME CAN SHIFT CAUSING THE CLUNKING NOISE. *RM","document":null,"url":"https://open.wenmarpro.com/bulletins/10039506","components":[{"id":"wheels","name":"Wheels","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"IMPALA","year_from":2006,"year_to":2011,"match":"exact","vehicle_ids":["2006_chevrolet_impala","2007_chevrolet_impala","2008_chevrolet_impala","2009_chevrolet_impala","2010_chevrolet_impala","2011_chevrolet_impala"]}],"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":[]}