{"nhtsa_id":620130,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-07-18","date":"2001-01-01","document_id":"59361002","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, AIR:ANTILOCK","mfr_system":null,"summary":"INFORMATION ON THE M-30 ANTI-LOCK BRAKE MODULATOR DIRECTLY REPLACING THE M-22 MODULATOR USED ON VOLVO TRUCKS IN UNISON WITH THE BENDIX ANTI-LOCK BRAKE SYSTEM. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/620130","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"abs","name":"Anti-lock brakes","parent":"brakes"}],"codes":[],"topics":[],"vehicles":[{"make":"VOLVO","model":"AC","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"VN","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"WG","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"WX","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":[]}