{"nhtsa_id":11023121,"type":"service_campaign","type_name":"Service campaign","date_added":"2025-09-15","date":"2025-09-12","document_id":"TDF /TDFA/TDFB/TDFC","mfr_campaign":"TDF / TDFA / TDFB / TDFC","replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Hyundai Motor America is currently investigating an ongoing auto mode update concern with software GDS event #1297. Some vehicles are not able to complete the update after multiple attempts and some are completing the update after multiple initial failed attempts. Technicians may experience consistent Data Communication Unit (DCU) software upgrade failures when attempting to update to the latest version. The matter is being investigated to address the update failures and recover any failed modules. We will provide an update once the issue is resolved and the suspension is lifted.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11023121-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11023121-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11023121","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"TUCSON","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_hyundai_tucson","2026_hyundai_tucson"]},{"make":"HYUNDAI","model":"TUCSON HYBRID","year_from":2025,"year_to":2025,"match":"base","vehicle_ids":["2025_hyundai_tucson"]},{"make":"HYUNDAI","model":"TUCSON PLUG-IN HYBRID","year_from":2025,"year_to":2025,"match":"base","vehicle_ids":["2025_hyundai_tucson"]}],"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":[]}