Affected Component: ELECTRICAL SYSTEM

Date Published
MAR 12, 2024
NHTSA TSB #
10252364
TSB Document
Summary
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 Brake (IEB) during charging in IG3 mode. Follow the procedure in this TSB to update the ECU software logic. • DTC Info: U1341 - ECU-IEB Communication Delay