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Service bulletins for the 2021 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.

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

By type

By component

By trouble code

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

Bulletins, newest first
No. 119-21-72021-10-06. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; ELECTRICAL SYSTEM. Porsche Workshop campaign repair instructions for Workshop Campaign WMG0 – Retrofitting Tire Pressure Monitoring (TPM) Control Unit.
No. 21212021-10-06. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information on a dynamic calibration fault for the Cayenne.
No. 2113.12021-10-06. Service bulletin. ELECTRICAL SYSTEM:INTERIOR LAMPS/BULBS; UNKNOWN OR OTHER. Special Tools information for Deutronic Signal Lamps.
No. 36-21-12021-10-06. Service bulletin. ELECTRICAL SYSTEM. Instructions for reprogramming the HV Charger Control unit in the event that charging is canceled.
No. 21142021-09-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Special tools information for a 12V Power Supply for PT3G Oscilloscope.
No. 1836.12021-09-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. New Special tools information for a Schumacher 100 Amp Reprogrammer / Power Supply with Battery Support.
No. 21132021-09-02. Service bulletin. ELECTRICAL SYSTEM. Special tools information for new Deutronic Signal Lamps.
WMF82021-08-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Porsche intranet posting with preliminary information on Workshop campaign WMF8 - Supply Remote Control.
WME72021-08-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Porsche intranet posting with preliminary information on Workshop Campaign WME7 - Supplying charging electronics.
WMF42021-08-04. Service bulletin. EQUIPMENT; STRUCTURE:INTERIOR PANELS:SUN VISOR; ELECTRICAL SYSTEM. Porsche intranet posting with preliminary information on Porsche Workshop Campaign WMF4 Stop delivery - Retrofitting sun sensor.
No. 100-212021-08-04. Service bulletin. ELECTRICAL SYSTEM. Porsche service campaign information for Workshop Campaign WMF4 - Retrofitting Sun Sensor.
No. 21142021-07-06. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information on Updating PVTS CU Software in the event that the Engine will not start.
No. 2100.12021-07-06. Service bulletin. ELECTRICAL SYSTEM. Information on offline MAP service updates for the PCM4 and PCM5.
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.
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.
No. 52-212021-05-05. Service bulletin. ELECTRICAL SYSTEM. Information on how to deal with a potential cyber security breach.
No. 21072021-05-05. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information on Replacing the 12V battery in the Cayenne.
PIWIS2101m2021-04-05. Service bulletin. ELECTRICAL SYSTEM. Information for new Porsche PIWIS tester update #40.000.035
No. D5452021-03-02. Service bulletin. ELECTRICAL SYSTEM. Parts withdrawal information for assorted control units.
No. D5422021-02-01. Service bulletin. ELECTRICAL SYSTEM. Parts withdrawal information for a control panel.
WLK82021-01-05. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting with preliminary information for Workshop campaign WLK8 - Porsche Communication Management (PCM) software update.
No. 190-202021-01-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Porsche service campaign information for Workshop campaign WLK8 - Porsche Communication Management (PCM) Software Update.

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