{"nhtsa_id":10012851,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2005-04-01","date":"2005-03-01","document_id":"04909","mfr_campaign":null,"replaces":"04909","component":"SUSPENSION","mfr_system":null,"summary":"INTERNATIONAL RIDE OPTIMIZE SUSPENSIONS (IROS) INSTALLED IN RE BUS MODELS BUILT IN THE CONWAY ASSEMBLY PLANT BEFORE JUNE 16, 2004 REQUIRE THE IROS SYSTEM UPGRADED TO THECURRENT DESIGN LEVEL. REVISED. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10012851","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"UNKNOWN","model":"UNKNOWN","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":[]}