{"nhtsa_id":11021979,"type":"service_campaign","type_name":"Service campaign","date_added":"2025-08-19","date":"2025-08-15","document_id":"25-01-054H DN","mfr_campaign":"968","replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Certain 2017-2019MY Elantra (AD, ADA) vehicles equipped with 2.0L ATK engines may be unable to complete diagnosis of the OBD-II Fuel System Readiness Monitor. This bulletin provides instructions to perform a software update for the Engine Control Module (ECM) to revise control logic.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021979-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021979-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11021979","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"ELANTRA","year_from":2017,"year_to":2019,"match":"exact","vehicle_ids":["2017_hyundai_elantra","2018_hyundai_elantra","2019_hyundai_elantra"]}],"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":[]}