Certain IONIQ 9 (ME1A EV) vehicles may exhibit a Data Communication Unit (DCU) software error due to the...
Hyundai technical service bulletin 26-01-053H TSB for 2026 Hyundai Ioniq 9.
- Bulletin number
- 26-01-053H TSB (LA32)
- Component
- Electrical system
- Summary
- 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.
Owners of these vehicles have filed 20 complaints in the electrical category.
Vehicles covered
- Hyundai Ioniq 9 2026 2026
VIN decoder
See the problems and recalls for an exact car
Buying a used Hyundai Ioniq 9?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history