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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.

By type

By component

By trouble code

By topic

Bulletins, newest first
9912141-152021-06-28. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. WF93 - Replacing Vacuum Line for Exhaust Flaps
991222-162021-06-28. 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
9910143-152021-06-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Incorrect Oil Change Service Interval Displayed after performing "Vehicle Handover" (143/15)
WMD12021-06-03. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Porsche intranet posting with preliminary information for Porsche workshop campaign WMD1 Workshop Campaign -PCM Software Update.
No. 17-212021-06-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved engine oils for new and classic Porsche models.
PIWIS2101y2021-06-02. Service bulletin. EQUIPMENT. Information on Porsche PIWIS Tester III Online Update 40.200.020.
PIWIS2101x2021-06-02. Service bulletin. ELECTRICAL SYSTEM. Information on Porsche PIWIS Tester III Online Update 40.200.000, .010, .015 & .016.
No. 04-21-32021-06-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Instructions on how to fix an error in the PCM showing that Satellite and Google Earth Map are no longer available.
ExtW9912021-05-05. Service bulletin. ENGINE AND ENGINE COOLING. Porsche intranet posting for an extended warranty for the 991 generation 911 coolant pump and valve block.
WMD12021-05-05. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting with information on Workshop Campaign WMD1 - PCM Software Update.
No. 52-212021-05-05. Service bulletin. ELECTRICAL SYSTEM. Information on how to deal with a potential cyber security breach.
No. 14-212021-05-05. Service bulletin. ENGINE AND ENGINE COOLING. Information on an extended warranty for a coolant pump and Valve block on the 911.
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. 60-21-32021-05-05. Service bulletin. ELECTRICAL SYSTEM. Porsche service campaign information for Workshop campaign WMD1 - Performing PCM Software Update.
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. 04-21-32021-04-05. Service bulletin. ELECTRICAL SYSTEM. Information on a possible customer complaint concerning Google Earth Satellite view in the PCM 4.0.
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-J6Q7Q-072021-03-06. Service bulletin. VEHICLE SPEED CONTROL; WHEELS. Resubmitting at request of Mr. Bernard Hardgrave. Advanced technical information for 991 generation 911 wheel speed sensor faults.
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.

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