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Service bulletins for the 2019 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.

50 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
25-01-024H-1 TSB2025-05-27. Service campaign. ELECTRICAL SYSTEM. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure in this TSB to reestablish the connection via the AVN pinhole reset method.
25-01-024H EM2025-04-18. Service campaign. ELECTRICAL SYSTEM. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon's communication network. If you are experiencing issues with remote commands, or other Bluelink services, please see the instructions below to reestablish the connection via the AVN pinhole reset method.
25-01-024H TSB2025-03-25. Service campaign. ELECTRICAL SYSTEM. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure in this TSB to reestablish the connection via the AVN pinhole reset method.
20-FL-008H-12021-01-09. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:FUEL CELL. This bulletin provides information on how to properly vent Hydrogen from a Nexo FCEV for maintenance or repairs.
20-01-039H2020-11-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin provides information and procedures for collecting OBD “In Use Monitor Performance Ratio” (IUMPR) data on certain 2019-2021MY vehicles at California dealers. This reporting is mandated by CARB (California Air Resources Board).
Campaign T5I - D2020-09-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Certain 2019 - 2020 MY NEXO (FE) vehicles may experience a condition in which the radio presets may reset during AVN start up. This service campaign provides the procedure to install an Audio Video Navigation (AVN) software update, which corrects this condition.
20-01-034H2020-09-03. 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.
20-01-029H2020-08-07. 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 Dea2020-08-07. 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.
20-01-022H-12020-07-08. Service bulletin. STRUCTURE:BODY:TAILGATE; ELECTRICAL SYSTEM; EQUIPMENT. Some 2019 - 2020 Nexo (FE), 2020 Palisade (LX2), and 2019 - 2020 Santa Fe (TM) vehicles equipped with the power tailgate may not operate. This bulletin provides the service procedure to inspect and when necessary perform the power tailgate spindle wire harness revision.
20-EE-003H2020-05-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin provides information on identifying dealer stock vehicles with either: • A Battery SOC alert - low Battery State of Charge (SOC) at or below 50%. • A 30 Day alert - vehicle has not started and reported an SOC in 30 days.
20-EE-002H(1)2020-04-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin describes the mandatory procedure to submit battery test data electronically for battery warranty claims by running the GDS Battery Claim App. The App must be run right after an incident battery is removed from the vehicle or after a battery charge is completed which qualifies for a warranty. It must be run at any time between RO open and close dates.
20-BE-001H2020-02-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides guidelines to inspect the USB, head unit, and multi-box for common connection conditions. 2. This bulletin presents guidelines to inspect for common Android Auto and Apple CarPlay connection conditions. 3. This bulletin provides physical differences between the USB 2.0 port and USB 3.0 port.
19-EE-001H-12019-08-19. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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 Intl. (KBI).
19-BE-008H2019-07-01. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE; FORWARD COLLISION AVOIDANCE. This bulletin provides information for replacement of the Blind-Spot Collision Warning (BCW) module. Whenever the left or right side BCW module is being replaced, it is required to perform the variant coding procedure. If the variant coding procedure is not performed, a DTC C1743 (S/W mismatch) will be triggered.
19-EE-003H2019-05-20. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. The following summarizes the service procedures for Lithium Battery replacement:
19-FL-003H2019-05-20. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This bulletin provides the procedure to write the Vehicle Identification Number (VIN) during the replacement of the Engine Control Module (ECM) or Powertrain Control Module (PCM). Once the VIN has been programmed to the ECM/PCM, it cannot be removed or overwritten.
5NP-M7Z5K-022019-02-19. Service bulletin. ELECTRICAL SYSTEM. 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.