{"nhtsa_id":11033051,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-06-01","date":"2026-05-01","document_id":"18-230-26","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"This bulletin announces the diagnostic procedures to be used when DTCs B1571(REFERENCE CODE INCOMPATIBILITY IMMOBILIZER CM TO ECM) and B1572(IMM CIRCUIT EXCEPT ANTENNA CIRCUIT) are detected by Keyless Access with Push Button Start(KACM).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033051-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033051-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11033051","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["B1571","B1572"],"topics":[],"vehicles":[{"make":"SUBARU","model":"ASCENT","year_from":2019,"year_to":2026,"match":"exact","vehicle_ids":["2019_subaru_ascent","2020_subaru_ascent","2021_subaru_ascent","2022_subaru_ascent","2023_subaru_ascent","2024_subaru_ascent","2025_subaru_ascent","2026_subaru_ascent"]},{"make":"SUBARU","model":"BRZ","year_from":2022,"year_to":2026,"match":"exact","vehicle_ids":["2022_subaru_brz","2023_subaru_brz","2024_subaru_brz","2025_subaru_brz","2026_subaru_brz"]},{"make":"SUBARU","model":"CROSSTREK","year_from":2016,"year_to":2026,"match":"exact","vehicle_ids":["2016_subaru_crosstrek","2017_subaru_crosstrek","2018_subaru_crosstrek","2019_subaru_crosstrek","2020_subaru_crosstrek","2021_subaru_crosstrek","2022_subaru_crosstrek","2023_subaru_crosstrek","2024_subaru_crosstrek","2025_subaru_crosstrek","2026_subaru_crosstrek"]},{"make":"SUBARU","model":"FORESTER","year_from":2016,"year_to":2026,"match":"exact","vehicle_ids":["2016_subaru_forester","2017_subaru_forester","2018_subaru_forester","2019_subaru_forester","2020_subaru_forester","2021_subaru_forester","2022_subaru_forester","2023_subaru_forester","2024_subaru_forester","2025_subaru_forester","2026_subaru_forester"]},{"make":"SUBARU","model":"IMPREZA","year_from":2016,"year_to":2026,"match":"exact","vehicle_ids":["2016_subaru_impreza","2017_subaru_impreza","2018_subaru_impreza","2019_subaru_impreza","2020_subaru_impreza","2021_subaru_impreza","2022_subaru_impreza","2023_subaru_impreza","2024_subaru_impreza","2025_subaru_impreza","2026_subaru_impreza"]},{"make":"SUBARU","model":"LEGACY","year_from":2016,"year_to":2025,"match":"exact","vehicle_ids":["2016_subaru_legacy","2017_subaru_legacy","2018_subaru_legacy","2019_subaru_legacy","2020_subaru_legacy","2021_subaru_legacy","2022_subaru_legacy","2023_subaru_legacy","2024_subaru_legacy","2025_subaru_legacy"]},{"make":"SUBARU","model":"OUTBACK","year_from":2016,"year_to":2025,"match":"exact","vehicle_ids":["2016_subaru_outback","2017_subaru_outback","2018_subaru_outback","2019_subaru_outback","2020_subaru_outback","2021_subaru_outback","2022_subaru_outback","2023_subaru_outback","2024_subaru_outback","2025_subaru_outback"]},{"make":"SUBARU","model":"WRX","year_from":2017,"year_to":2026,"match":"exact","vehicle_ids":["2017_subaru_wrx","2018_subaru_wrx","2019_subaru_wrx","2020_subaru_wrx","2021_subaru_wrx","2022_subaru_wrx","2023_subaru_wrx","2024_subaru_wrx","2025_subaru_wrx","2026_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":[]}