{"nhtsa_id":10034046,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2010-10-13","date":"2010-08-01","document_id":"WVT-30","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"SUBARU SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ENGINE CONTROL MODULE (ECM) REPROGRAMMING. A MODIFICATION TO THE ENGINE CONTROL MODULE (ECM) SOFTWARE LOGIC HAS BEEN DEVELOPED TO IMPROVE THE PERFORMANCE OF THE EMISSION CONTROL SYSTEM. THIS SOFTWARE CHANGE WILL NOT ADVERSELY AFFECT FUEL ECONOMY OR PERFORMANCE. CSC LETTER WAS REC'D. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10034046","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"SUBARU","model":"IMPREZA","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_subaru_impreza"]},{"make":"SUBARU","model":"LEGACY","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_subaru_legacy"]},{"make":"SUBARU","model":"OUTBACK","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_subaru_outback"]}],"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":[]}