Immobilizer Campaign 993 Anti-Theft Software and Window Decal Dealer . . . To address an increase in thefts of Hyundai vehicles not equipped with an immobilizer, an add-on security system is available for purchase This system has been assembled from components available from our electronics partner, Firstech, maker of Compustar security products
23-01-093H Hyundai Engine and Engine Cooling TSB This bulletin provides the procedure to update the Hybrid Control Unit (HCU) and Dual Automatic Temperature Control (DATC) software to help improve coolant flow to the Exhaust Heat Recovery System (EHRS)
HMA TSB - National Highway Traffic Safety Administration Description: 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