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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.

By type

By component

By trouble code

Bulletins, newest first
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-G2B4B-112019-11-01. Service bulletin. ENGINE AND ENGINE COOLING. List of approved A40 engine oils for Porsche vehicles.
122-A8X6X-102019-10-31. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. Porsche intranet posting for WKA2 campaign, which seeks to replace the exhaust system holders on affected vehicles.
122-V6A2F-102019-10-31. Service bulletin. EQUIPMENT; TRAILER HITCHES. Porsche Intranet posting for WJ75 campaign, which seeks to check the towing lug on affected vehicles and replace if necessary.
122-R9F7K-102019-10-31. Service bulletin. EQUIPMENT:OTHER:LABELS; FUEL SYSTEM, GASOLINE. Porsche Intranet posting about WH50 campaign, which seeks to replace fuel type stickers 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
122-A9R2A-102019-10-15. Service bulletin. STRUCTURE:BODY. Instructions for how to treat a leaking paroramic roof
122-D2B8P-102019-10-15. Service bulletin. ENGINE AND ENGINE COOLING. Instructions for what course of action to take if the customer should complain about oil leaks from the transfer case
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.
122-T3H2H-092019-09-23. Service bulletin. STRUCTURE. Instructions for installing the Porsche Bicycle Rack on applicable models with an already installed roof transportation system
122-E2L9P-092019-09-23. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS. Instructions for installing the Porsche Roof Box on applicable models with an already installed roof transportation system
122-C4E2N-092019-09-23. Service bulletin. STRUCTURE. Instructions for retrofitting the Sport Design package on MY18 and MY19 Cayenne vehicles.
122-Z6Y7L-092019-09-23. Service bulletin. ELECTRICAL SYSTEM. Bulletin outlining PIWIS Tester updates 38.600.030 & 035.
122-E4R8U-092019-09-23. Service bulletin. ELECTRICAL SYSTEM. Bulletin outlining PIWIS Tester updates 38.600.020.
122-B3Y6H-092019-09-23. Service bulletin. ELECTRICAL SYSTEM. Bulletin outlining PIWIS Tester updates 38.600.000, .010, & .015.
122-P3E9G-092019-09-23. Service bulletin. SEATS. Instructions for replacing the the backrest cover in the front seat in the event that the customer complains about the seam becoming detatched.
122-K2U8K-092019-09-23. Service bulletin. ELECTRICAL SYSTEM. Instructions for reprogramming the High Voltage Control Unit on Cayenne S E-Hybrid models in the event of a red or yellow hybrid warning message.
122-M5G2V-092019-09-23. Service bulletin. WHEELS; TIRES. List of approved wheel and tire combinations for the MY18 and newer Cayenne models.
122-B9P6V-092019-09-23. Service bulletin. ENGINE AND ENGINE COOLING. Instructions for installing a modified coolant pipe at the front of the cylinder head in the event of a customer complaint about leaking. This bulletin is specific to the Cayenne E-Hybrid models.
122-D4F2Y-092019-09-23. Service bulletin. ENGINE AND ENGINE COOLING. Instructions for installing a modified coolant pipe at the front of the cylinder head in the event of a customer complaint about leaking
122-T5D5X-082019-08-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Installation and conversion instructions for adding snow chains to Cayenne models for winter/off road use.
122-E4M3M-082019-08-12. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC; SERVICE BRAKES, AIR:DISC; SERVICE BRAKES, HYDRAULIC. Information about possible noise squeaks when turning from Cayenne front disk brakes due to high performance brakes being installed.

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