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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
ATIALL16012021-06-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1997 to Present - Vehicle Analysis Log Types - In an effort to prode accurate information regarding the state of the vehicle at the time fof VAL creation, a "log type" drop down menu was added at the end of the VAL creation menu.
ATI216012021-06-28. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Red Hybrid Warning in the Instrument Cluster and Temperature Faults in High Voltage Power Electronics POAEE00, POAF300, P0BD200 stored in High Voltage Power Electronics. The coolant hose with the above part number has a built in thermostat which can sometimes stick, causing high temperature faults in the e-Machine.
ATI016022021-06-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. The Approval and Support Management Program (ASM)
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. 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.
No. 15-202021-06-02. Service bulletin. EQUIPMENT. Installation and conversion instructions for installing a front dashcam on the E3 Cayenne.
PIWIS2101x2021-06-02. Service bulletin. ELECTRICAL SYSTEM. Information on Porsche PIWIS Tester III Online Update 40.200.000, .010, .015 & .016.
No. 04-21-12021-06-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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. 41-212021-05-05. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on checking the fuel injectors in the event of Engine Knocking, Jerking or Vibrations During Acceleration.
No. 52-212021-05-05. Service bulletin. ELECTRICAL SYSTEM. Information on how to deal with a potential cyber security breach.
No. 60-21-12021-05-05. Service bulletin. ELECTRICAL SYSTEM. Porsche service campaign information for Workshop Campaign WMD1- Performing PCM Software Update.
No. 05-212021-05-05. Service bulletin. ELECTRICAL SYSTEM. Instructions for replacing the HV battery on the Cayenne S-E Hybrid from MY2015 to 2018.
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. 36-21-12021-04-05. Service bulletin. ELECTRICAL SYSTEM. Instructions on how to reprogram the HV charger control unit in the event that charging is canceled and the check engine light is active.
No. 04-21-22021-04-05. Service bulletin. ELECTRICAL SYSTEM. Instructions on a possible customer complaint that the Google Earth Satellite view is not working on the PCM 4.0.
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. 205-202021-04-02. Service bulletin. POWER TRAIN. Workshop information for a transmission symptom. What to do if there are oil leaks on the automatic transmission.

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