Service bulletins for the 2021 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.
750 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Software are shown. Show all
| PIWIS2401j | 2024-03-04. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE. Information for PIWIS tester update 42.500.020 |
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| No. 205-21-1 | 2022-03-03. Service bulletin. EQUIPMENT; LANE DEPARTURE; ELECTRICAL SYSTEM:SOFTWARE. Technical information for a message stating "lane change assist not available - service necessary" in the instrument cluster. re-programing lane change assist control units. |
| No. 203-21 | 2022-03-03. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Information on vehicle sporadically not available via remote access services: reprogram connect control unit. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.