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Service bulletins for the 2004 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.

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

By type

By component

By trouble code

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
ATIALL416042021-06-28. Service bulletin. EQUIPMENT; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. 2003 to Present All with tire pressure monitoring system.
ATIALL16012021-06-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1997 to Present - Vehicle Analysis Log Types - In an effort to prode accurate information regarding the state of the vehicle at the time fof VAL creation, a "log type" drop down menu was added at the end of the VAL creation menu.
997951-152021-06-28. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). PCM3.0 - Navigation Update (data status: model year 2016) - New maps with data status: model year 2016 (G)
PIWIS2101y2021-06-02. Service bulletin. EQUIPMENT. Information on Porsche PIWIS Tester III Online Update 40.200.020.
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.
PIWIS2102j2021-04-02. Service bulletin. EQUIPMENT. Information on PIWIS Tester update 40.000.020 & .022.
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.
No. D5362021-01-05. Service bulletin. EQUIPMENT. Information on parts withdrawal of closed workshop campaign parts.
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. 56-202020-09-02. Service bulletin. ELECTRICAL SYSTEM:WIRING; EQUIPMENT:ELECTRICAL:INFOTAINMENT. Information on Classic Radio options for the 996 and 986 models.
Charging lockup2020-07-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Info on a new customer tool for looking up campaigns and recalls on their vehicle.
No. D4a2020-07-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Document showing the evolution of Porsche Vehicles since 1948.
PIWIS2001v2020-07-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Information on new PIWIS tester update 39.500.020 and .025.
No. 19-202020-07-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. List of approved engine oils for classic vehicles.
No. 16-202020-06-01. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. List of approved A40 engine oils for all applicable vehicles as of 1984.
122-J4L4X-032020-03-05. Service bulletin. EQUIPMENT. Bulletin outlining new blitz table replacement castors due to a high rate of failure reported by dealers.
122-H6M8Z-012020-01-04. Service bulletin. EQUIPMENT. Porsche Intranet posting outlining the Warranty Credit stop that takes place at the end of every calendar year.
122-H4F7Z-012020-01-03. Service bulletin. EQUIPMENT. Updated worksheet for Chassis and VIN numbering system. Updated to include 2020 Models including the Taycan.
122-L7Q9T-012020-01-03. Service bulletin. EQUIPMENT. Updated bulletin with the full list of Porsche model type designations.
122-Y9Z9P-012020-01-03. Service bulletin. EQUIPMENT. Information about new PIWIS Tester updates 39.000.022 and 39.050.000
122-F5T6X-012020-01-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Instructions for manually setting the date and time on older model vehicles with GPS and PCM 2.1 or older.
122-A7G3D-122019-12-04. Service bulletin. EQUIPMENT. List of valid Advanced Technical Information bulletins (ATIs) as of 11/22/2019
122-T4D2V-112019-11-01. Service bulletin. EQUIPMENT. Parts withdrawal for sealing grease used for sports cars.

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