Service bulletins for the 2017 Porsche 911
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.
578 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Exhaust manifold, pipes and muffler are shown. Show all
| 991222-16 | 2021-06-28. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. WG13-Checking Tailpipe Covers and Adjusting if Necessary (Workshop Campaign) Tailpipe covers on exhaust system |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.