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Service bulletins for the 2020 Porsche Taycan

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1073 on file from NHTSA, as of 2026-10-19.

About U01B4 on the 2020 Porsche Taycan: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: U01B4 are shown. Show all

Bulletins, newest first
No. 105-25-12026-02-05. Service bulletin. SERVICE BRAKES. Technical information for Active Malfunction Indicator Light in Conjunction with Fault Memory Entries Regarding Brake Booster "U01B400" and "C114113"

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.