Service bulletins for the 2026 Hyundai Sonata
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.
20 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Fuel system are shown. Show all
| 26-FL-002H TSB | 2026-06-16. Service bulletin. FUEL/PROPULSION SYSTEM. Some Sonata Hybrid (DN8 HEV) vehicles may display a Check Engine light and store one or more of the DTCs listed below due to an abnormal air-fuel ratio in a specific cylinder. This bulletin provides instructions to update the Engine Control Module (ECM) to resolve the air-fuel ratio logic. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.