Service bulletins for the 2021 Hyundai Nexo
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.
16 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Engine are shown. Show all
| 23-EM-005H | 2023-12-15. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides important checkpoint guidelines when performing engine oil and filter change services. |
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| 22-01-039H | 2022-12-21. Service bulletin. ENGINE AND ENGINE COOLING. Certain Nexo vehicles may experience a stack coolant warning light while driving. The logic update provides real-time current sensor deviation correction. |
| 22-01-039H | 2022-12-07. Service bulletin. ENGINE AND ENGINE COOLING. Certain Nexo vehicles may experience a stack coolant warning light while driving. The logic update provides real-time current sensor deviation correction. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.