{"nhtsa_id":10032455,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2010-03-26","date":"2009-10-01","document_id":"PIT-4935","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, HYDRAULIC; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:HYDRAULIC; SERVICE BRAKES, HYDRAULIC:POWER ASSIST","mfr_system":null,"summary":"CHEVROLET/GMC: BRAKE ASSIST PUMP MOTOR ON AND WARNING LIGHT/CHIME. OWNERS MAY COMMENT WHEN TURNING THE STEERING WHEEL WITH THE BRAKE APPLIED THAT THE HYDRAULIC BRAKE ASSIST PUMP TURNS ON AND THE BRAKE WARNING LAMP AND CHIME MAY SOUND. MODELS CHEVROLET KODIAK, C4500-C7500, CONVENTIONAL CAB, T SERIES, TILT CAB, C6500-C7500; GMC TOPKICK, C4500-C7500, CONVENTIONAL CAB, T SERIES, TILT CAB, T6500-T7500. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10032455","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"C4500","year_from":2003,"year_to":2007,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"C4500 NA","year_from":2008,"year_to":2008,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"C5500","year_from":2003,"year_to":2008,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"C6500","year_from":2003,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"C7500","year_from":2003,"year_to":2007,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"C7500","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"C7500NA","year_from":2008,"year_to":2008,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"C8500","year_from":2003,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"CONVENTIONAL","year_from":2003,"year_to":2003,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"KODIAK","year_from":2003,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"T SERIES","year_from":2007,"year_to":2009,"match":"exact","vehicle_ids":["2007_chevrolet_t-series","2008_chevrolet_t-series","2009_chevrolet_t-series"]},{"make":"CHEVROLET","model":"T-SERIES","year_from":2006,"year_to":2007,"match":"exact","vehicle_ids":["2006_chevrolet_t-series","2007_chevrolet_t-series"]},{"make":"CHEVROLET","model":"T6500","year_from":2004,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"T7500","year_from":2004,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"C4500","year_from":2003,"year_to":2008,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"C5500","year_from":2003,"year_to":2008,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"C6500","year_from":2003,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"C7500","year_from":2003,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"CONVENTIONAL","year_from":2003,"year_to":2003,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"T SERIES","year_from":2004,"year_to":2009,"match":"exact","vehicle_ids":["2004_gmc_t-series","2005_gmc_t-series","2006_gmc_t-series","2007_gmc_t-series","2008_gmc_t-series","2009_gmc_t-series"]},{"make":"GMC","model":"T6500","year_from":2004,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"T7500","year_from":2004,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"TOPKICK","year_from":2003,"year_to":2009,"match":null,"vehicle_ids":[]}],"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":[]}