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May 27, 2026 Service bulletin

Technical information for Warning Message "Vehicle Electrical System Faulty" in Conjunction With Fault...

Porsche technical service bulletin No. 44-25 for 2020-2024 Porsche Taycan, 2020-2024 Porsche Taycan 4s and 2020-2024 Porsche Taycan Turbo S and others.

Bulletin number
No. 44-25
Component
Electrical system
Summary
Technical information for Warning Message "Vehicle Electrical System Faulty" in Conjunction With Fault Memory Entry "Cell Module X, Ageing Detected" in the High-Voltage Battery Control Unit - BMC

Owners of these vehicles have filed 146 complaints in the electrical category.

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