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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
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. 25-192021-06-03. Service bulletin. EQUIPMENT. Installation and conversion instructions for retrofitting Apple CarPlay in the 982 Boxster and Cayman.
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.
No. 21092021-06-02. Service bulletin. EQUIPMENT. Special tools information for pinout tool box tools.
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.
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. 15-212021-05-05. Service bulletin. WHEELS. List of approved wheels and tires for the 982 generation Cayman and Boxster models as of 2017.
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. 222-20-12021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on how to remedy a Check Engine Error Message in Conjunction with Loss of Power or a Mooing Noise after Switching off the Engine.
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-R4K7Q-122021-03-06. Service bulletin. WHEELS; TIRES. Resubmitting at request of Mr. Bernard Hardgrave. List of approved wheels and tires for the 982 generation 718 Cayman and 718 Boxster.
122-K9M7R-062021-03-06. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Resubmitting at request of Mr. Bernard Hardgrave. Information on fogging lighting components.
122-Q9N2B-012021-03-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. Resubmitting at request of Mr. Bernard Hardgrave. Product knowledge information for the 982 Generation 718 Cayman. Includes info on Location of Identification Plate, Chassis/VIN, Paint and Engine Number.

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