{"nhtsa_id":39621,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1995-11-01","date":"1993-05-01","document_id":"PIL188","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP","mfr_system":null,"summary":"OPTIONAL ABS SENSORS AVAILABLE FOR SELECT SINGLE AND TANDEM AXLES. *TW","document":null,"url":"https://open.wenmarpro.com/bulletins/39621","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"abs","name":"Anti-lock brakes","parent":"brakes"}],"codes":[],"topics":[],"vehicles":[{"make":"ROCKWELL","model":"ROCKWELL","year_from":1993,"year_to":1993,"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":[]}