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November 14, 2023 Service bulletin

There is a software problem in the PCM, which may

Honda technical service bulletin A18-090 for 2018 Honda Clarity Plug-In Hybrid.

Bulletin number
A18-090
Component
Electrical system
Summary
Service Bulletin - There is a software problem in the PCM, which may cause the MIL to come on with DTC P26A3 (electric water valve malfunction), DTC P100C (electric VTC motor speed signal circuit malfunction) and/or P0010 (variable valve timing control [VTC] malfunction). There are up to three updates that must be performed on applicable vehicles.

Owners of these vehicles have filed 20 complaints in the electrical category.

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