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Service bulletins for the 2026 Hyundai Ioniq 9

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.

17 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
26-01-053H-1 TSB2026-08-15. Warranty extension. ELECTRICAL SYSTEM. Certain IONIQ 9 (ME1A EV) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
26-01-053H DCS2026-07-08. Warranty extension. ELECTRICAL SYSTEM. Certain Palisade Hybrid (LX3 HEV) vehicles may illuminate the Malfunction Indicator Lamp (MIL) and display a false “Check Hybrid System” warning message after use of Bluelink Remote Start following extended parking periods. Related DTCs associated with the MIL include U116087, U016487, U100787, U012987, U010087, U100387, U100287, U010187, and U015587. Technical Service Bulletin (TSB) 26-01-053H provides instructions to perform a Data Communication Unit (DCU) software update to prevent these conditions.
26-01-053H TSB2026-07-08. Warranty extension. ELECTRICAL SYSTEM. Certain IONIQ 9 (ME1A EV) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
25-01-035H TSB2025-06-03. Service campaign. ELECTRICAL SYSTEM. Certain 2026MY IONIQ 9 (ME1A EV) vehicles may have DTC C138201 (Lever Hall Sensor Fault) set in the Electronic Shift Control System which could prevent the vehicle from being shifted out of the “Park” position. This system is also known as Shift-by-Wire Shift Control Unit (SBWSCU). Follow the procedure in this TSB to update the Shift-by-Wire (SBW) software logic.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.