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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. 41-202020-06-01. Service bulletin. ELECTRICAL SYSTEM. Instructions for how to perform a software update on the Control unit for the auxiliary alarm system in the event that the vehicle will not start.
122-T4N8F-052020-05-05. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Porsche intranet posting for Workshop Campaign WLA4.
122-T7L9Z-052020-05-05. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Workshop Campaign instructions for WS Campaign WLA4 - Retrofitting Heat Shield.
122-M8J3B-052020-05-04. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C40 engine oils for all Porsche models since 1984.
122-F3E2A-042020-04-02. Service bulletin. UNKNOWN OR OTHER. PCM navigation update details for the 997 generation 911.
122-L5W4C-042020-04-02. Service bulletin. UNKNOWN OR OTHER. Bulletin outlining PCM update for PCM 2.0 model 911 vehicles.
122-F4J4K-042020-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved engine oils for all Porsche models.
122-Q4L8N-042020-04-02. Service bulletin. WHEELS. List of approved wheel, tire, and wheel spacer combinations for the 991.1 generation 911.
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-H6D8D-032020-03-05. Service bulletin. ELECTRICAL SYSTEM. Bulletin outlining new PIWIS tester update 39.100.030 & .035
122-W5C4C-032020-03-05. Service bulletin. SEATS. Instructions for addressing leather seat wrinkling on older models.
122-V4J2F-032020-03-05. Service bulletin. ELECTRICAL SYSTEM. Bulletin outlining PIWIS tester update 39.200.000, .010, .015, .016, & .017
122-T9S3B-022020-02-04. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C30 engine oils for all Porsche vehicles since 1984.
122-Z2X7A-022020-02-04. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C20 engine oils for all Porsche vehicles since 1984.
122-S7K8Z-022020-02-04. Service bulletin. WHEELS; ENGINE AND ENGINE COOLING. List of approved A40 engine oils for all Porsche vehicles since 1984.
122-T6A9F-022020-02-04. Service bulletin. SEATS; WHEELS; ENGINE. Parts withdrawal for various parts that were used in Recall and workshop campaigns.
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-A9R3U-012020-01-03. Service bulletin. ELECTRICAL SYSTEM. Information about new PIWIS Tester update 39.050.010
122-S2J9B-012020-01-03. Service bulletin. ELECTRICAL SYSTEM. Information about new PIWIS Tester update 39.050.012
122-Y9Z9P-012020-01-03. Service bulletin. EQUIPMENT. Information about new PIWIS Tester updates 39.000.022 and 39.050.000
122-M6J2U-012020-01-03. Service bulletin. ELECTRICAL SYSTEM. Information about PIWIS Tester update 39.000.020
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

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