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Service bulletins for the 2012 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.

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

By type

By component

By trouble code

Bulletins, newest first
No. 07-21-12021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C30 engine oils for all new and Classic Porsche vehicles MY1984 and newer.
No. 03-212021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C20 engine oils for all new and classic Porsche models 1984 and newer.
PIWIS2102j2021-04-02. Service bulletin. EQUIPMENT. Information on PIWIS Tester update 40.000.020 & .022.
No. 26-182021-04-02. Service bulletin. ELECTRICAL SYSTEM. Information on a Navigation system update for the PCM3.1
122-S6Q2R-062021-03-06. Service bulletin. EQUIPMENT; SERVICE BRAKES. Resubmitting at request of Mr. Bernard Hardgrave. Advanced technical information on brake fluid for all Porsche vehicles.
122-N8C4M-122021-03-06. Service bulletin. EQUIPMENT; WHEELS; LATCHES/LOCKS/LINKAGES. Resubmitting at request of Mr. Bernard Hardgrave. Advanced Technical information for center-locking wheel nut tightening.
122-R7W3J-122021-03-06. Service bulletin. EQUIPMENT; TIRES; WHEELS. Resubmitting at request of Mr. Bernard Hardgrave. List of approved wheels, tires and wheel spacers for the 991 generation 911 Carrera.
122-K9M7R-062021-03-06. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Resubmitting at request of Mr. Bernard Hardgrave. Information on fogging lighting components.
No. D5452021-03-02. Service bulletin. ELECTRICAL SYSTEM. Parts withdrawal information for assorted control units.
No. D2512021-03-02. Service bulletin. EQUIPMENT. New parts promotion for all weather mats and cargo liner.
No. 19-20-22021-03-02. Service bulletin. ENGINE AND ENGINE COOLING. Porsche service campaign information for Workshop campaign WLA4 - Retrofitting Heat Shield.
No. 19-20-12021-03-02. Service bulletin. ENGINE AND ENGINE COOLING. Porsche service campaign instructions for Workshop campaign WLA4 - Retrofitting Heat Shield.
WTY 9912021-02-02. Service bulletin. EXTERIOR LIGHTING; BACK OVER PREVENTION. Porsche intranet posting with preliminary information for dealers on the Extended warranty for the reversing light function on the 911Carrera (991).
No. 228-202021-02-02. Service bulletin. POWER TRAIN; EXTERIOR LIGHTING. Information on an extended warranty for the 991 generation 911.
No. 1820.12021-02-02. Service bulletin. STRUCTURE. Special tools information on a measuring and alignment system.
No. 1758.22021-02-01. Service bulletin. EQUIPMENT. Special tools information on Logo Templates and exchangeable inserts.
No. 1758.12021-02-01. Service bulletin. EQUIPMENT. Special tools information on Logo templates and exchangeable inserts.
No. 21002021-02-01. Service bulletin. EQUIPMENT. Porsche Specials tools update for an offline SD Card update for the Map services.
No. 72-172021-02-01. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. Instructions for reworking the fan motor in the event that the HVAC does not function.
WLP12021-01-05. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN. Porsche intranet posting with preliminary information on Workshop Campaign WLP1 (Workshop campaign for parts analysis) - Replacing manual transmission
WLN12021-01-05. Service bulletin. EQUIPMENT. Porsche intranet posting with preliminary information on WLN1 stop sale/workshop campaign.
No. D5362021-01-05. Service bulletin. EQUIPMENT. Information on parts withdrawal of closed workshop campaign parts.
No. 227-202021-01-05. Service bulletin. POWER TRAIN. Porsche service campaign information for Workshop campaign WLP1 - Replacing Manual Transmission.
No. 54-202021-01-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. List of approved A40 style engine oils for new and classic Porsche models.
No. 53-202021-01-05. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C40 style engine oils for new and classic Porsche vehicles.

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