Japanese automaker Honda is recalling the most expensive version of its CR-V lineup in the United States due to a coolant leak risk. According to American Honda Motor, coolant inside the CR-V e:FCEV’s fuel cell stack may seep into the housing, potentially causing a short circuit.
The recall documents highlight several potential causes. Firstly, a change in the manufacturing process reduced the amount of adhesive in unified areas. Secondly, the supplier failed to establish a deburring process for the O-ring groove of the rocker joint, exacerbating sealing issues.
Honda CR-V e:FCEV Faces Coolant Leak Risk in Fuel Cell Stack
When coolant infiltrates the fuel cell stack housing, a short circuit between the bipolar plate and the housing bracket can trigger a ground fault warning. Up to four warnings may appear on the dashboard of the hydrogen-powered vehicle, starting with alerts for the electrical system and fuel cell insulative fluid.
The CR-V e:FCEV’s intricate powertrain may also switch to a low-power mode, reducing output to 20 kilowatts (27 horsepower). Ultimately, the dashboard will flash “do not drive” and “stop driving when safe” messages. Fuel Cell System Manufacturing (FCSM) is the supplier of this component.
FCSM is a joint venture between Honda and the largest of Detroit’s Big Three automakers. Commercial production of the jointly developed fuel cell systems began in January 2024. Meanwhile, the listed recalled vehicles have production dates ranging from June 2024 to March 2025.
The CR-V e:FCEV is the only CR-V variant for the U.S. market produced at the high-performance manufacturing center in Marysville, Ohio. Its electric powertrain and power electronics are supplied by Vitesco Technologies. American Honda Motor first received notification of the issue in November 2024.
The issue began with a warranty claim related to a ground fault warning light. Eventually, in January 2025, Honda replicated the coolant leak from the rocker joint, prompting further investigation by the Japanese automaker. During the investigation, Honda also identified non-compliance with Federal Motor Vehicle Safety Standard No. 1.
American Honda Motor has received 14 warranty claims filed between June 3, 2024, and December 4, 2025. The remedy involves replacing the fuel cell stack with rubber gaskets at the ends and deburred rocker joints. The supplier rectified the recall condition in May 2025.
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