Service bulletins for the 2018 Hyundai Ioniq
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.
79 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 5NP-Y4N3B-08 | 2018-08-20. Service bulletin. EQUIPMENT. This bulletin describes the procedure to diagnose the vehicle?s D-Audio unit as a result of the inability to set the clock or view it on the top of the screen. |
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| 5NP-T5B2D-02 | 2018-02-12. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. This bulletin describes the procedure to determine if the vehicle?s head unit needs to be replaced as a result of the system frequently losing a Bluetooth connection with Apple iPhone devices. |
| 5NP-G8S6L-01 | 2018-01-16. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This bulletin describes the procedure to determine if the vehicle's navigation unit needs to be replaced as a result of the inability to set the clock or view it on the top of the screen. |
| 5NP-E2C3Q-09 | 2017-09-14. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This bulletin provides information on how to return a Hyundai HEV/PHEV/EV/Fuel Cell Lithium Battery for proper disposal and safe environmental recycling using Hyundai?s authorized vendor Kinsbursky Brothers Inc. (KBI). |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.