{"nhtsa_id":11030390,"type":"emissions","type_name":"Emissions","date_added":"2026-04-01","date":"2026-03-17","document_id":"SC340_OWNR_JF&JFA_104","mfr_campaign":"SC340","replaces":null,"component":"ENGINE; ELECTRICAL SYSTEM","mfr_system":null,"summary":"VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC340 FLIGHT 104 ) - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign to improve the emissions software logic in the Electronic Control Module (ECM) for certain 2016-2020 MY Optima vehicles equipped with 2.4L Gas Direct Injection (GDI) engines to ensure compliance with emissions regulations.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030390-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030390-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11030390","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"OPTIMA","year_from":2016,"year_to":2020,"match":"exact","vehicle_ids":["2016_kia_optima","2017_kia_optima","2018_kia_optima","2019_kia_optima","2020_kia_optima"]}],"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":[]}