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Clean Hydrogen Partnership

Potential pre-mature pressure relief device on fuel cell vehicles

Event

Event ID
1246
Quality
Description
A manufacturer of fuel cells and hydrogen vehicles issued a recall for 35 of its vehicles, due to a manufacturing defect in the Thermal Pressure Relief Device (TRPD). The defect may cause the glass bulb within the TRPD to fracture prematurely, causing hydrogen release from the onboard storage system.

The manufacturer advised that the vehicles can still be operated, but they should not be parked in enclosed spaces like garages, until the TRPD is replaced.

The manufacturer was planning to replace the faulty devices at authorised dealerships as soon as the necessary parts were available.

This recall is part of a larger global action including 1,545 vehicles in the United States and additional numbers in South Korea.
Event Initiating system
Classification of the physical effects
No Hydrogen Release
Nature of the consequences
Macro-region
Oceania
Country
Australia
Date
Main component involved?
Fcev (Tprd)
How was it involved?
No Release
Initiating cause
Manufacturing Defect/Error
Root causes
Unknown (No additional details provided)

Emergency & Consequences

Number of injured persons
0
Number of fatalities
0

Lesson Learnt

Corrective Measures
The manufacturer advised that the vehicles can still be operated, but they should not be parked in enclosed spaces like garages, until the TRPD is replaced.
The manufacturer was planning to replace the faulty devices at authorised dealerships as soon as the necessary parts were available.
This recall was part of a larger global action including 1,545 vehicles in the United States and additional numbers in South Korea.

Event Nature

Release type
n.a
Involved substances (% vol)
n.a.
Presumed ignition source
No release

References

Reference & weblink

FCW news of 18 November 2024<br />
https://fuelcellsworks.com/2024/11/18/fuel-cells/hyundai-nexo-recalled-… />
(accessed December 2025)

Hydrogen Insight news of 18 November 2024<br />
https://www.hydrogeninsight.com/transport/risk-of-injury-or-death-hyund… />
(accessed December 2025)

JRC assessment