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
| No. 49-21-2 | 2021-06-02. Service bulletin. STRUCTURE. Porsche Recall information for Recall campaign AMA3 - Reworking Various Threaded Connections on the Chassis. |
|---|---|
| No. D556 | 2021-06-02. Service bulletin. EQUIPMENT. Parts withdrawal information for 992 trim pieces. |
| No. 52-21 | 2021-05-05. Service bulletin. ELECTRICAL SYSTEM. Information on how to deal with a potential cyber security breach. |
| No. 40-21 | 2021-05-05. Service bulletin. ELECTRICAL SYSTEM. Instructions on how to remedy a Lift system fault in the instrument cluster of the 992 generation 911. |
| No. 49-21-2 | 2021-04-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE. Porsche recall campaign information for Recall campaign AMA3 - Reworking Various Threaded Connections on the Chassis. |
| No. D4a | 2021-04-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Historical information on Porsche product evolution. |
| No. 14-21 | 2021-04-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. List of approved C20 engine oils for new Porsche vehicles. |
| No. 11-21 | 2021-04-05. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. List of approved C40 engine oils for new Porsche vehicles. |
| No. 10-21 | 2021-04-05. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C30 style engine oils for new Porsche vehicles. |
| PIWIS2101m | 2021-04-05. Service bulletin. ELECTRICAL SYSTEM. Information for new Porsche PIWIS tester update #40.000.035 |
| No. D13.1 | 2021-04-05. Service bulletin. EQUIPMENT. Parts information on new PIWIS Tester program for Independent Repair Facilities (IRFs). |
| No. 06-21-2 | 2021-04-02. Service bulletin. ELECTRICAL SYSTEM. Instructions for re-programming the DME control unit in the event that there are warning messages in the instrument cluster. |
| No. 09-21 | 2021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved A40 style engine oils for new and classic Porsche vehicles MY 1984 and newer. |
| No. 08-21 | 2021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C40 engine oils for new and classic Porsche vehicles MY 1984 and newer. |
| No. 07-21-1 | 2021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C30 engine oils for all new and Classic Porsche vehicles MY1984 and newer. |
| No. 06-21-1 | 2021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C40 engine oils for all MY2021 Porsche vehicles. |
| No. 05-21 | 2021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C30 engine oils for MY 2021 Porsche vehicles. |
| No. 04-21-4 | 2021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C20 engine oils for all new MY 2021 Porsche vehicles. |
| No. 03-21 | 2021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C20 engine oils for all new and classic Porsche models 1984 and newer. |
| PIWIS2102j | 2021-04-02. Service bulletin. EQUIPMENT. Information on PIWIS Tester update 40.000.020 & .022. |
| No. 210-20 | 2021-02-01. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Instructions on how to replace the intake pipe in the event that there is a leak on the right side of the turbocharger. |
| WLP0 | 2021-01-05. Service bulletin. EQUIPMENT; POWER TRAIN. Porsche intranet posting with preliminary information on Workshop campaign WLP0 -Re-programming PDK control unit. |
| No. 57-20 | 2021-01-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. List of approved C40 style engine oils for MY21 and newer Porsche models. |
| No. 56-20 | 2021-01-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. List of approved C30 style engine oils for MY21 and newer Porsche models. |
| No. 55-20 | 2021-01-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. List of approved C20 style engine oils for new Porsche models as of 2021. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.