Due to a software error in the Battery Management System (BMS), there have been isolated cases of an...
Porsche technical service bulletin WTF7 for 2025-2026 Porsche Taycan, 2025-2026 Porsche Taycan 4s and 2025-2026 Porsche Taycan Turbo S and others.
- Bulletin number
- WTF7 (WTF7)
- Component
- Electrical system
- Summary
- Due to a software error in the Battery Management System (BMS), there have been isolated cases of an unintentional software reset and consequently a communication error as a result of implausible time differences. This sometimes causes yellow “Battery low” warning messages followed by red “Vehicle electrical system fault” warning messages to appear on the instrument cluster, which automatically reset themselves after the vehicle has been parked.
Owners of these vehicles have filed 2 complaints in the electrical category.
Vehicles covered
- Porsche Taycan 2025-2026 20252026
- Porsche Taycan 4s 2025-2026 20252026
- Porsche Taycan Turbo S 2025-2026 20252026
- Porsche Taycan 4 Cross Turismo 2025-2026 20252026
- Porsche Taycan 4s Cross Turismo 2025-2026 20252026
- Porsche Taycan GTS Sport Turismo 2025-2026 20252026
- Porsche Taycan Turbo 2025-2026 20252026
- Porsche Taycan Turbo Cross Turism 2025-2026 20252026
- Porsche Taycan Turbo S Cross Turi 2025-2026 20252026
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