{"nhtsa_id":10047943,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-12-11","date":"2012-09-11","document_id":"TSB-0172-12","mfr_campaign":null,"replaces":null,"component":"AIR BAGS","mfr_system":null,"summary":"TOYOTA: AN INTERMITTENT EXHIBITION OF SRS LAMP ON WITH DIAGNOSTIC TROUBLE CODE (DTC) B1821 AND/OR B1826 CONDITION. IMPROVEMENT TO TERMINAL CRIMPING OF SIDE AIR BAG TO ADDRESS SITUATION. MODEL 2011-2012 SIENNA.","document":null,"url":"https://open.wenmarpro.com/bulletins/10047943","components":[{"id":"air-bags","name":"Air bags","parent":null}],"codes":["B1821","B1826"],"topics":[],"vehicles":[{"make":"TOYOTA","model":"SIENNA","year_from":2011,"year_to":2012,"match":"exact","vehicle_ids":["2011_toyota_sienna","2012_toyota_sienna"]}],"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":[]}