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October 17, 2025 Service campaign

Technical information for WSB4

Porsche technical service bulletin No. WSB4 for 2019-2021 Porsche Cayenne, 2019-2021 Porsche 911 and 2019-2021 Porsche Cayenne S and others.

Bulletin number
No. WSB4 (WSB4)
Component
Electrical system
Summary
Technical information for WSB4 - Re-Programming External Communication Control Unit (Workshop Campaign)

Owners of these vehicles have filed 22 complaints in the electrical category.

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