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Service bulletins for the 2018 Porsche Cayenne

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.

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

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By component

By trouble code

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
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. 31-202020-07-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Instructions on how to handle 12V vehicle batteries.
No. 41-202020-07-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. Instructions on how to perform a PVTS Software update in the event that a car will not start.
No. 32-202020-07-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Information on new part numbers for Porsche mobile charger.
No. 31-122020-06-01. Service bulletin. ELECTRICAL SYSTEM. Instructions for what to do in the event that the customer loses the driver's key while transporting the vehicle.
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-M7L6L-042020-04-02. Service bulletin. ELECTRICAL SYSTEM. Instructions for installing a new universal charger on vehicles where the vehicle cannot be charged using the main 208V main power supply.
122-H6D8D-032020-03-05. Service bulletin. ELECTRICAL SYSTEM. Bulletin outlining new PIWIS tester update 39.100.030 & .035
122-V4J2F-032020-03-05. Service bulletin. ELECTRICAL SYSTEM. Bulletin outlining PIWIS tester update 39.200.000, .010, .015, .016, & .017
122-P7A8T-022020-02-04. Service bulletin. ELECTRICAL SYSTEM. Technical information outlining the customer complaint that the locking "beep" not working as specified. The issue can be corrected by reprogramming the vehicle's rear end electronics.
122-K9F9R-022020-02-04. Service bulletin. ELECTRICAL SYSTEM. Technical information guide outlining what to do if the remote access option in the new PCM is not available after initial commissioning.
122-A8K3M-022020-02-04. Service bulletin. ELECTRICAL SYSTEM. Technical information guide highlighting how to fix the rear lid opening when someone is in the loading area of the luggage compartment of the vehicle. The remedy is to recode the lid proximity sensor Control Unit.
122-Y3Y7Y-022020-02-04. Service bulletin. ELECTRICAL SYSTEM. Parts withdrawal bulletin for various outdated control units on a variety of vehicles.
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-M6J2U-012020-01-03. Service bulletin. ELECTRICAL SYSTEM. Information about PIWIS Tester update 39.000.020
122-K6T9F-012020-01-03. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM. Instructions for performing "Guided Fault Finding" in the event that "Hybrid system failure" messages appear in instrument cluster of the affected vehicles.
122-Q8P6C-122019-12-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Information about providing a map update on some vehicles' navigation system.
122-S3R9Q-112019-11-01. Service bulletin. ELECTRICAL SYSTEM. New PIWIS Tester update 38.800.030
122-H6S4J-112019-11-01. Service bulletin. ELECTRICAL SYSTEM. New PIWIS Tester update 38.800.020
122-D4N9X-112019-11-01. Service bulletin. ELECTRICAL SYSTEM. New PIWIS tester updates 38.800.000 &.010
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
122-N5V9B-092019-09-23. Service bulletin. ELECTRICAL SYSTEM. Instructions for retrofitting Sport Plus Mode on vehciles without sport chrono package already installed. This bulletin is specifically for the new Porsche PCM4 which was new for MY17.

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