Service bulletins for the 2020 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.
34 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Software are shown. Show all
| 20-01-034H | 2020-09-03. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. This bulletin describes the procedure to install an Audio Video Navigation (AVN) software update which corrects a condition in which the radio presets may reset during AVN start up. |
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| 20-01-029H | 2020-08-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, OTHER. This bulletin provides software update information related to the Fuel Cell control Unit (FCU) and Hydrogen storage Management Unit (HMU) on certain NEXO (FE) vehicles. This update revises the logic for Malfunction Indicator Light (MIL) ON related to the FCU and HMU. |
| Campaign T5D Dea | 2020-08-07. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. This service campaign is to provide information on the software update related to the Fuel Cell control Unit (FCU) and Hydrogen storage Management Unit (HMU) on certain NEXO (FE) vehicles. This update includes logic revision for Malfunction Indicator Light (MIL) ON related to the FCU and HMU. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.