Technical Service Bulletins (TSBs) for the 2021 Ioniq Plug-in Hybrid are official communications between Hyundai & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

    ELECTRICAL SYSTEM

    • TSB #24-EV-001H

      Date Announced:
      MAR 12, 2024
      NHTSA ID:
      #10252364

      This bulletin provides the procedure to update the ECU software on certain 2021-2022MY IONIQ Plug-in Hybrid (AE PHEV) vehicles that may exhibit a warning light with DTC U1341 due to communication issues with the Integrated Electronic ... Read More »