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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. 55-242024-06-05. Service bulletin. ELECTRICAL SYSTEM. Technical information for troubleshooting the front window pane reversed - closes and/or opens incorrectly.
No. 169-21-22024-06-04. Over-the-air update. ELECTRICAL SYSTEM. Technical information for the OTA map update (failed) - navigation map view in the PCM screen is black/incomplete.
No. 06-09-32024-05-02. Service bulletin. ELECTRICAL SYSTEM. Technical information for evaluating overspeed events on the Cayenne
No. 177-232024-05-02. Service bulletin. ELECTRICAL SYSTEM. Technical information for WPR0 - recoding thermal management control unit
No. 2328.12024-04-03. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ELECTRICAL SYSTEM; VISIBILITY. Instructions on advanced technical information for the Macan and Cayenne - front window motor without function
No. 2109.22024-04-02. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for critical 12v li-ion battery recycling.
No. 24082024-03-05. Service bulletin. ELECTRICAL SYSTEM:IGNITION; ELECTRICAL SYSTEM. Instructions on advanced technical information for the ignition lock error - B143C29
No. 24062024-03-05. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the mobile phone inductive charger information
No. 2229.112024-03-05. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Instructions on advanced technical information for the Cayenne and 911 - conbox current draw discharges 12v battery
No. 211-23-22024-03-05. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Symptom based workshop manual for the yellow warning message "PSM failure" in the instrument cluster - Checking Hydraulic Unit and Re-Program PSM Control Unit
PIWIS2401j2024-03-04. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE. Information for PIWIS tester update 42.500.020
No. 31-202024-03-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Technical information for a diagnosis and handling of 12 volt lithium ion battery
No. 2121.12024-02-07. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for ACC dynamic calibration fault
No. 2016.22023-12-08. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for troubleshooting AC charging
No. 2229.12023-12-08. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information on the Cayenne and 911 conbox current draw discharges 12v battery
No. 2221.32023-12-08. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the Cayenne E-Hybrid - thermal management fault (P26B100)
No. 177-232023-12-07. Service bulletin. ELECTRICAL SYSTEM. Technical information for WPR0 - recoding thermal management control unit
No. 23302023-11-08. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the permanent diagnostic trouble codes
No. 180-212023-11-08. Service bulletin. ELECTRICAL SYSTEM. Technical information on WMM7 - replacing VTS control unit
WPH42023-10-05. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting with information on recoding control unit for assistance systems - WPH4
No. 23142023-10-05. Service bulletin. ELECTRICAL SYSTEM. Special tools and equipment information for all Porsche models. Diagnostic equipment standards.
No. 23132023-10-05. Service bulletin. ELECTRICAL SYSTEM. Special tools and equipment information for the Pico Oscilloscope Extended Functionality
No. 2229.92023-09-09. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Information on advanced technical information for the Cayenne and 911 - conbox current draw discharges 12v battery
No. 2117.12023-09-09. Service bulletin. ELECTRICAL SYSTEM; COMMUNICATION:MANUFACTURER TELEMATICS. Information on advanced technical information for the connect registration and pairing PDI tips.
No. 23182023-09-09. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Information on advanced technical information for the wall charger connect - ground fault troubleshooting

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