Affected Component: ELECTRICAL SYSTEM:SOFTWARE

Date Published
SEP 07, 2023
NHTSA TSB #
10243318
TSB Document
Summary
This bulletin provides the procedure to update the Hybrid Control Unit (HCU) / Low DC/DC Converter (LDC) software logic to eliminate internal P-DTCs (that are not viewable) in certain 2019-2021MY IONIQ Hybrid (AE HEV) and 2021MY IONIQ Plug-in Hybrid (AE PHEV) vehicles.