Service bulletins for the 2023 Hyundai Ioniq 6
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.
34 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with type: Warranty extension are shown. Show all
| Z14 OL | 2026-06-27. Warranty extension. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. Certain 2022 – 2024 model year IONIQ 5, 2024 model year IONIQ 5 Robotaxi, and 2023 – 2025 model year IONIQ 6 vehicles may require a replacement of the Integrated Charging Control Unit (ICCU) and ICCU Fuse. At Hyundai, we are committed to providing vehicles of outstanding quality and value. In an effort to meet this commitment, the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU Fuse Replacement has been extended to 15 years/ 180,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. |
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| 26-EV-004H DCS | 2026-06-06. Warranty extension. ELECTRICAL SYSTEM. Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. Follow the flowchart in Technical Service Bulletin (TSB) 26-BE-010H to check for an active or stored occurrence of any Diagnostic Trouble Code (DTC) that requires replacement of the ICCU and replace the ICCU and ICCU fuse if necessary. Some vehicles may have an active DTC that requires ICCU replacement. Please note that any vehicles under 15 years/180,000 miles are covered by this TSB, even if vehicle is within High Voltage Warranty of 10 years/120,000 miles. |
| 26-EV-004H DN | 2026-06-06. Warranty extension. ELECTRICAL SYSTEM. Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. |
| 26-EV-004H TSB | 2026-06-06. Warranty extension. ELECTRICAL SYSTEM. Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. Follow the flowchart in this bulletin to check for an active or stored occurrence of any Diagnostic Trouble Code (DTC) that requires replacement of the ICCU and replace the ICCU and ICCU fuse if necessary. Some vehicles may have an active DTC that requires ICCU replacement. |
| Z13 OL | 2026-02-06. Warranty extension. UNKNOWN OR OTHER. Certain 2023 – 2025 model year IONIQ 6 vehicles may experience an inoperable horn that may be caused by water intrusion through the ventilation hole. At Hyundai, we are committed to providing vehicles of outstanding quality and value. In an effort to meet this commitment, the warranty coverage for the horn assembly under these conditions has been extended to 10 years / 120,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. |
| 25-BE-022H DN | 2026-01-05. Warranty extension. UNKNOWN OR OTHER. Certain IONIQ 6 (CE EV) vehicles may have an inoperable horn that may be caused by water intrusion through the ventilation hole. Hyundai is extending the warranty coverage for the horn under this condition to 10 years/120,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. Please note that any vehicles under 10 years/120,000 miles are covered by this TSB, even if vehicle is within original warranty of 5 years/60,000 miles. |
| 25-BE-022H TSB | 2025-12-16. Warranty extension. UNKNOWN OR OTHER. Certain IONIQ 6 (CE EV) vehicles may have an inoperable horn that may be caused by water intrusion through the ventilation hole. Hyundai is extending the warranty coverage for the horn replacement to 10 years/120,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. This bulletin provides instructions on the replacement of the inoperative horn. |
| 25-BE-022H DCS | 2025-12-16. Warranty extension. UNKNOWN OR OTHER. Certain IONIQ 6 (CE EV) vehicles may have an inoperable horn that may be caused by water intrusion through the ventilation hole. Hyundai is extending the warranty coverage for the horn replacement to 10 years/120,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.