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Service bulletins for the 2018 Porsche 718 Cayman

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.

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

By type

By component

By trouble code

Bulletins, newest first
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-W3W7W-012020-01-03. Service bulletin. WHEELS. Instructions for retrofitting decorative wheel rim strips on 20 and 21 inch rims.
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
122-T4D2V-112019-11-01. Service bulletin. EQUIPMENT. Parts withdrawal for sealing grease used for sports cars.
122-H9P5Z-112019-11-01. Service bulletin. VISIBILITY; EQUIPMENT; ELECTRICAL SYSTEM. Parts withdrawal bulletin for the sun sensor on 718 and 991 911 models.
122-R9Z4U-112019-11-01. Service bulletin. EQUIPMENT. Parts withdrawal bulletin for the wishbone on 718 models.
122-P8P9K-112019-11-01. Service bulletin. EQUIPMENT; STRUCTURE:BODY:DOOR. Information about retrofitting model designation on doors.
122-A9G7N-112019-11-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Bulletin outlining SD card storage for PIWIS Testers.
122-S3R9Q-112019-11-01. Service bulletin. ELECTRICAL SYSTEM. New PIWIS Tester update 38.800.030
122-J7Y2Y-112019-11-01. Service bulletin. EQUIPMENT; SERVICE BRAKES, HYDRAULIC. Special tools bulletin for new brake fluid tester.
122-H6S4J-112019-11-01. Service bulletin. ELECTRICAL SYSTEM. New PIWIS Tester update 38.800.020
122-T4K8Y-112019-11-01. Service bulletin. STRUCTURE. Special tool summary for locking pliers for convertible top repair.
122-M5X4J-112019-11-01. Service bulletin. EQUIPMENT. Tools and equipment document highlighting new connector release tool set.
122-D4N9X-112019-11-01. Service bulletin. ELECTRICAL SYSTEM. New PIWIS tester updates 38.800.000 &.010
122-G2B4B-112019-11-01. Service bulletin. ENGINE AND ENGINE COOLING. List of approved A40 engine oils for Porsche vehicles.
122-D3J4E-102019-10-31. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Porsche Intranet posting for WJ25 campaign, which seeks to retrofit Porsche Connect functionality which may be missing on affected vehicles.
122-Z3C2E-102019-10-15. Service bulletin. ELECTRICAL SYSTEM. Announcement of new Tech Live look, which will put technicians into live chats with technical support if they should have an urgent issue
122-L8R6J-102019-10-15. Service bulletin. ELECTRICAL SYSTEM. Bulletin highlighting new updates 38.750, 38.750.000 for the Porsche PIWIS Tester 3

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