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January 11, 2019 Service bulletin

The telematics system is reporting deterioration of the fuel cell stack

Honda technical service bulletin A19-006 for 2017-2018 Honda Clarity Fuel Cell.

Bulletin number
A19-006
Component
Fuel system, diesel: storage: tank assembly
Summary
"Service bulletin - The telematics system is reporting deterioration of the fuel cell stack. This deterioration can reduce fuel cell output. Water improperly discharged inside the fuel cell stack mixes with hydrogen and oxygen, generating hydrogen peroxide. The hydrogen peroxide/water combination concentrates in one area, accelerating the deterioration of the electrolyte membrane in the fuel cell."

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