Warranty extension 26-01-043H TSB
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.
| Type | Warranty extension |
|---|---|
| NHTSA id | 11032591 |
| Published by NHTSA | 2026-05-12 |
| Manufacturer's number | 26-01-043H TSB |
| Manufacturer's date | 2026-05-08 |
| Campaign id or software version | LA18 |
| NHTSA component | ELECTRICAL SYSTEM |
NHTSA's summary
Certain IONIQ 5 (NEA EV) vehicles are eligible for a software update to the VCMS which would enable the Plug and Charge (PNC) function to support its use on Tesla V3 and V4 Superchargers, IONNA chargers, and ChargePoint chargers. This bulletin provides instructions for completing a software update to the VCMS.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Electrical system
| HYUNDAI IONIQ 5 | 2026 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 26V068000 | 2026-02-05. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY |
|---|---|
| 26V047000 | 2026-01-26. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| 26-01-082H TSB | 2026-10-14. Warranty extension. Certain IONIQ 5 (NEA EV) vehicles may experience Malfunction Indicator Lamp (MIL) illumination and false battery overtemperature fault diagnosis caused by water ingress into the high voltage battery system. This condition may cause unnecessary fail-safe activation, potentially resulting in reduced vehicle performance or limited vehicle operation if the vehicle is continually driven. This bulletin provides the service procedure to update the Battery Management System (BMS) software to optimize the fail-safe activation logic to prevent false activation. Additionally, diagnostic criteria for DTC P1AD300 “Hybrid/EV Battery Abnormal Performance: MISD” has also been improved to enhance diagnostic accuracy. |
|---|---|
| 26-01-082H DCS | 2026-10-14. Warranty extension. Certain IONIQ 5 (NEA EV) vehicles may experience Malfunction Indicator Lamp (MIL) illumination and false battery overtemperature fault diagnosis caused by water ingress into the high-voltage battery system. This condition may cause unnecessary fail-safe activation, potentially resulting in reduced vehicle performance or limited vehicle operation if the vehicle is continually driven. |
| 26-01-046H DCS | 2026-06-06. Warranty extension. Certain IONIQ 5 (NEA EV) vehicles may have 12V battery drainage due to the scheduled climate feature. Technical Service Bulletin (TSB) 26-01-046H provides instructions to perform a software update for the Vehicle Control Unit (VCU) to improve the logic of the scheduled climate reducing battery drainage. |
| 26-01-046H TSB | 2026-06-06. Warranty extension. Certain IONIQ 5 (NEA EV) vehicles may have 12V battery drainage due to the scheduled climate feature. This bulletin provides instructions to perform a software update for the Vehicle Control Unit (VCU) to improve the logic of the scheduled climate reducing battery drainage. |
| 26-01-035H TSB | 2026-04-15. Service campaign. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. This may be due to an occasional disconnection on Verizon’s communication network. Follow the procedures in this bulletin to verify Bluelink Data Communication Unit (DCU) network connection and if needed, reset the DCU in Dealer Mode to resolve the connection. |