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Service bulletins for the 2016 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.

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

By type

By component

By trouble code

Bulletins, newest first
PIWIS2101x2021-06-02. Service bulletin. ELECTRICAL SYSTEM. Information on Porsche PIWIS Tester III Online Update 40.200.000, .010, .015 & .016.
No. 52-212021-05-05. Service bulletin. ELECTRICAL SYSTEM. Information on how to deal with a potential cyber security breach.
No. 21062021-05-05. Service bulletin. WHEELS. Advanced technical information on how to remedy a clicking noise from Centerlock wheels from the 991 generation 911.
No. D4a2021-04-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Historical information on Porsche product evolution.
No. 13-212021-04-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. List of approved C20 style engine oils for classic and new Porsche models since 1984.
No. 09-212021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved A40 style engine oils for new and classic Porsche vehicles MY 1984 and newer.
No. 08-212021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C40 engine oils for new and classic Porsche vehicles MY 1984 and newer.
No. 07-21-12021-04-02. 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-L7A3K-122021-03-06. Service bulletin. TIRES; EQUIPMENT; WHEELS. Resubmitting at request of Mr. Bernard Hardgrave. List of approved wheels, tires, and wheel spacers for the 991 Generation 911 - (4WD models).
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.
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. 134-182021-02-01. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:IGNITION:COIL. Instructions on how to replace the engine coils in the event that there is engine noise.
No. 21002021-02-01. Service bulletin. EQUIPMENT. Porsche Specials tools update for an offline SD Card update for the Map services.

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