{"nhtsa_id":10117558,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-09-14","date":"2017-08-14","document_id":"WQW-58R","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM","mfr_system":null,"summary":"2.0L DIT Models Only. Subaru of America, Inc. has determined that vehicles affected by this Service Program require ECM reprogramming. This bulletin includes the service procedure for diagnosis and repair of customer concerns involving engine idle roughness or, in some cases, engine noise and/or damage resulting from spark knock (pre-ignition). The Engine Control Module logic has also been optimized requiring the ECM reprogramming.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10117558-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10117558-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10117558","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"transmission-control-module","name":"Transmission control module","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"SUBARU","model":"FORESTER","year_from":2014,"year_to":2015,"match":"exact","vehicle_ids":["2014_subaru_forester","2015_subaru_forester"]},{"make":"SUBARU","model":"WRX","year_from":2015,"year_to":2015,"match":"exact","vehicle_ids":["2015_subaru_wrx"]}],"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":[]}