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
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Only bulletins with component: Brakes are shown. Show all
| 21-BR-002H | 2021-04-07. Service bulletin. SERVICE BRAKES; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides best practice recommendations when performing brake service procedures. |
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| 20-BR-002H | 2020-12-08. Service bulletin. SERVICE BRAKES. This bulletin describes the procedure to inspect and identify fluid which may appear around the brake caliper area. |
| 20-HA-001H | 2020-04-07. Service bulletin. SERVICE BRAKES, AIR:SUPPLY:COMPRESSOR. This bulletin provides additional service diagnostic information and repair procedures related to electric A/C compressors equipped in hybrid electric vehicles, plug-in hybrid electric vehicles, and electric vehicles. |
| 20-BR-001H | 2020-03-06. Service bulletin. SERVICE BRAKES, HYDRAULIC. This bulletin describes the procedure to properly bleed the brakes on Sonata HEV/PHEV (LF) and Ioniq EV/HEV/PHEV (AE) vehicles. This procedure applies when any air is introduced into the Active Hydraulic Boost (AHB) system, which consists of the pressure supply unit (PSU), and the integrated brake actuation unit (IBAU). Improper bleeding of the brake system can result in the presence of air, which may reduce braking effectiveness. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.