Service bulletins for the 2027 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.
1 on file from NHTSA, as of 2026-10-19.
| 26-01-053H-1 TSB | 2026-08-15. 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. |
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A warranty extension may pay for a repair after the basic warranty has ended. Read the document for which vehicles and which repair it covers.
By type
By component
| 26-01-053H-1 TSB | 2026-08-15. 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. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.