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Service bulletins for the 2020 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.

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

By type

By component

By trouble code

Bulletins, newest first
No. 15-202021-07-06. Service bulletin. EQUIPMENT. Installation and conversion instructions for a Cayenne Dashcam.
No. 62-212021-07-06. Service bulletin. ELECTRICAL SYSTEM. Porsche service campaign information for Workshop Campaign WMD2 - Teach Tire Pressure Monitoring (TPM) System Using the PIWIS Tester.
No. 21-212021-07-06. Service bulletin. WHEELS. List of approved wheels and tires for the Cayenne.
No. 20-212021-07-06. Service bulletin. WHEELS. List of approved wheels and tires for the Cayenne Coupe.
No. D5742021-07-06. Service bulletin. EQUIPMENT. Parts withdrawal information for an air guide.
PIWIS2101aa2021-07-06. Service bulletin. EQUIPMENT. Information on new PIWIS Tester update #40.250.040
No. 2100.12021-07-06. Service bulletin. ELECTRICAL SYSTEM. Information on offline MAP service updates for the PCM4 and PCM5.
No. D13.22021-07-06. Service bulletin. EQUIPMENT. Information on new PIWIS Tester program for independent repair facilities.
No. D5682021-07-06. Service bulletin. ENGINE AND ENGINE COOLING. Parts withdrawal information for a gasket set.
PIWIS2101z2021-07-06. Service bulletin. EQUIPMENT. Information on Porsche PIWIS Tester update #40.250.030 & .035.
ATIALL416052021-06-28. Service bulletin. EQUIPMENT; SERVICE BRAKES. Understanding and addressing brake squeal complaints.
ATIALL416042021-06-28. Service bulletin. EQUIPMENT; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. 2003 to Present All with tire pressure monitoring system.
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)
WMD22021-06-03. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Porsche intranet posting with preliminary information for Porsche workshop campaign WMD2 Workshop Campaign - Teach Tire Pressure Monitoring (TPM) system using the PIWIS Tester.
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. 20-192021-06-02. Service bulletin. ENGINE AND ENGINE COOLING. Installation and conversion instructions for installing a sports exhaust system on the E3 Cayenne.
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. 21092021-06-02. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information for Critical 12V Li-ion Battery recycling.
No. 21082021-06-02. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information for a lane change assist warning along with fault codes.
No. D5572021-06-02. Service bulletin. ELECTRICAL SYSTEM. Parts withdrawal information for an Aerial Connection for the E3 Cayenne.

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