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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.

Warranty extensions
26-01-053H-1 TSB2026-08-15. 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.
26-01-053H DCS2026-07-08. 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. 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.
26-01-029H TSB2026-03-30. POWER TRAIN. Certain IONIQ 5 (NEA EV) and IONIQ 9 (ME1A EV) vehicles (affected VINs listed below) may exhibit a high-frequency noise from the front motor area during low-speed deceleration. This bulletin provides instructions to replace the front motor and gear reduction assembly.

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.

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Bulletins, newest first
26-EV-006H TSB2026-09-02. Service bulletin. FUEL/PROPULSION SYSTEM. Some IONIQ 9 (ME1A EV) vehicles may illuminate a MIL warning light with DTC P0AA600 and/or P1AA800 with limited charging capabilities. This bulletin provides instructions to replace the Battery System Assembly (BSA) if necessary.
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.
DTN DL2026-05-08. Other. AIR BAGS. The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous driver’s-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These inflators were not supplied, approved, or authorized by the vehicle manufacturers and have primarily been found in vehicles that previously experienced a crash and underwent airbag replacement using non-genuine parts. These dangerous inflators have ruptured during deployment, posing a serious risk of injury or death due to metal fragments entering the vehicle cabin. To date, Hyundai is aware of three people who have died while driving a Hyundai vehicle with one of these substandard replacement airbag inflators that deployed in what likely would have been a survivable crash. NHTSA has issued a public advisory urging vehicle owners and service professionals to have vehicles inspected if there is reason to believe that a non-genuine replacement airbag may have been installed. Vehicles with salvage or rebuilt titles, prior airbag deployments, or unknown repair histories may present a higher risk. NHTSA strongly cautions against self-inspection by vehicle owners and recommends inspection by trained technicians.
DTN DCS2026-05-08. Other. AIR BAGS. The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN), that have been identified in U.S. vehicles following prior crashes, theft, or non‑certified airbag replacements. These inflators are not approved for use, may rupture during deployment, and have caused serious injuries and fatalities. Please see attached announcement, provided by NHTSA, for more details.
26-01-029H TSB2026-03-30. Warranty extension. POWER TRAIN. Certain IONIQ 5 (NEA EV) and IONIQ 9 (ME1A EV) vehicles (affected VINs listed below) may exhibit a high-frequency noise from the front motor area during low-speed deceleration. This bulletin provides instructions to replace the front motor and gear reduction assembly.
26-01-020H TSB2026-03-04. Service campaign. UNKNOWN OR OTHER. Certain IONIQ 9 (ME1A EV) vehicles may have a sliding center console (rear floor console) that makes a ratcheting noise while being moved forward or backward. This bulletin provides instructions to remove and replace the affected sliding center console.
26-01-001H DCS2026-01-13. Service campaign. EXTERIOR LIGHTING. Certain IONIQ 9 (ME1A EV) vehicles may exhibit adhesive residue on the high mounted stop lamp. This can occur when the clear protective film has had prolonged exposure to sun and heat, causing some of the adhesive to remain on the black plastic housing after removal. Technical Service Bulletin (TSB) 26-01-001H provides instructions to inspect and, if necessary, replace the high mounted stop lamp on affected vehicles.
26-01-001H TSB2026-01-13. Service campaign. EXTERIOR LIGHTING. Certain IONIQ 9 (ME1A EV) vehicles may exhibit adhesive residue on the high mounted stop lamp. This can occur when the clear protective film has had prolonged exposure to sun and heat, causing some of the adhesive to remain on the black plastic housing after removal. This bulletin provides instructions to inspect and, if necessary, replace the high mounted stop lamp on affected vehicles.
25-BD-012H TSB2025-11-12. Service bulletin. EXTERIOR LIGHTING. This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes or during normal driving operation.
25-01-050H-1 DCS2025-10-29. Service campaign. SEATS. Certain IONIQ 9 (ME1A EV) vehicles may have walk-in switches that are not fully secured. Technical Service Bulletin (TSB) 25-01-050H-1 provides instructions to inspect and, if necessary, replace the walk-in switch.
25-01-050H-1 TSB2025-10-28. Service campaign. SEATS. Certain IONIQ 9 (ME1A EV) vehicles may have walk-in switches that are not fully secured. This bulletin provides instructions to inspect and, if necessary, replace the walk-in switch.
25-01-055H TSB2025-08-25. Service campaign. UNKNOWN OR OTHER. Certain IONIQ 9 (ME1A EV) vehicles may exhibit paint peeling from the left upper garnish on the rear bumper. This bulletin provides instructions to replace the left upper garnish on the rear bumper.
25-01-050H TSB2025-07-28. Service campaign. SEATS. Certain IONIQ 9 (ME1A EV) vehicles may have Walk-in switches (A) that are not fully secured. This bulletin provides instructions to inspect and, if necessary, replace the Walk-in switch (A).
25-01-039H TSB2025-06-10. Service bulletin. STRUCTURE:BODY. Certain 2026MY IONIQ 9 (ME1A EV) vehicles may have fender garnish clips that were not fully inserted during assembly. If the clips were not properly secured, it may result in a visible gap between the fender garnish and the vehicle body. This may also cause interference when the front door is opened. Follow the procedure in this bulletin to inspect the gap between the fender garnish and vehicle body on both driver and passenger sides and, if necessary, secure the clips.
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.