{"nhtsa_id":634550,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-03","date":"2002-04-01","document_id":"0208111002","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"ON CERTAIN 1997 - 2002 GMC F-MODEL (T-SERIES) MEDIUM DUTY TILT CABS AND 1997 - 2002 GMC W-SERIES MEDIUM DUTY TILT CAB MODELS, THE RED REFLECTIVE LETTER DETACHES FROM NAMEPLATE. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/634550","components":[],"codes":[],"topics":[],"vehicles":[{"make":"GMC","model":"GMC","year_from":null,"year_to":null,"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":[]}