April 2026 Hyundai Ioniq 5 Recall, Complaint & Service Bulletin Roundup

April 2026 brought a significant number of technical service bulletins (TSBs) for the Hyundai Ioniq 5, covering model years 2022 through 2026. While no new recalls, owner complaints, or federal investigations were reported this month, Hyundai dealers have received guidance on addressing various issues, from critical electrical system failures to motor noise and charging problems. Owners of the Hyundai Ioniq 5 should pay close attention to these updates, as they detail common issues and their prescribed fixes.

Recalls

No new recalls were filed for the Hyundai Ioniq 5 in April 2026.

Owner complaints

No new owner complaints were filed for the Hyundai Ioniq 5 in April 2026.

Investigations

No new NHTSA investigations were opened, upgraded, or closed for the Hyundai Ioniq 5 in April 2026.

Service bulletins

This month saw a notable volume of Hyundai Ioniq 5 TSBs, providing solutions for a range of technical issues. These bulletins offer valuable information for owners experiencing specific symptoms with their vehicles.

High Voltage Battery Charging Issues

Hyundai has released multiple bulletins addressing problems with the High Voltage (HV) battery charging system. Technical Service Bulletin 26-EV-002H for certain 2025 Ioniq 5 vehicles details a condition where a voltage difference between battery cells prevents the HV battery from fully charging. This issue is often indicated by Diagnostic Trouble Codes (DTCs) P1AA700 or P1AD300. A similar bulletin, 25-EV-002H, also for 2025 Ioniq 5 models, requires inspection and potential replacement of the Battery System Assembly (BSA) if these DTCs are present.

Motor and Gear Drive Unit (MGDU) Noise

Several TSBs address various types of noise originating from the electric motor and reduction gear assembly. Technical Service Bulletin 26-01-029H (Campaign LA9) applies to 2025 Ioniq 5 and 2026 Ioniq 9 vehicles, detailing a high-frequency noise from the front motor area during low-speed deceleration. The prescribed fix involves replacing the front motor and reduction gear assembly. For 2023-2024 Ioniq 5 models, TSB 25-01-042H addresses a grinding or whining noise from the Motor and Reduction Gear System (MGDU), often due to incorrect fluid levels during manufacturing. Additionally, Service Campaign 25-01-056H covers a potential noise in the MGDU of certain 2025 Ioniq 5 vehicles caused by a missing wave washer, requiring MGDU assembly replacement.

No Start or Unable to Enter Ready Mode

A critical operational issue for some 2025 Ioniq 5 (NEA EV) vehicles is addressed by Technical Service Bulletin 26-BE-009H. This bulletin outlines the procedure to inspect and potentially replace the Body Domain Control (BDC) module if the vehicle experiences a "NO START OR UNABLE TO ENTER READY MODE" condition.

Key Fob Inspection and Replacement

Service Campaign 25-01-011H OL has been launched for certain 2025 Ioniq 5 vehicles due to incorrect key fobs. Owners are advised to bring both key fobs to a Hyundai dealer for a free inspection and potential replacement to ensure proper functionality.

What Hyundai Ioniq 5 owners should do

If you own a 2022-2026 Hyundai Ioniq 5, it is important to be aware of these potential issues. Here are some recommended actions:

• Monitor for symptoms: Pay attention to any unusual noises from the motor, difficulty charging your HV battery, or issues starting your vehicle or entering ready mode. These could indicate a problem covered by one of the Hyundai Ioniq 5 TSBs.
• Contact your dealer: If you experience any of the described symptoms or warning messages, schedule an appointment with an authorized Hyundai dealer. Reference the relevant TSB number if you know it.
• Inspect key fobs: For 2025 Ioniq 5 owners, ensure both of your key fobs are inspected by a dealer under Service Campaign 25-01-011H OL.
• Check for other minor issues: Be aware of other bulletins, such as those for inoperative automatic wipers (26-BE-006H), missing DC inlet pin caps (25-EV-003H), or inner rear lamp LED issues (25-BE-011H).