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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

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

Bulletins, newest first
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.
No. 38-212021-04-05. Service bulletin. ELECTRICAL SYSTEM. Information on Checking Software Version on Porsche mobile chargers and Updating it if Necessary Before Delivery to Customers.
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.
PIWIS2101m2021-04-05. Service bulletin. ELECTRICAL SYSTEM. Information for new Porsche PIWIS tester update #40.000.035
122-K9M7R-062021-03-06. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Resubmitting at request of Mr. Bernard Hardgrave. Information on fogging lighting components.
No. D5452021-03-02. Service bulletin. ELECTRICAL SYSTEM. Parts withdrawal information for assorted control units.
No. 21062021-03-02. Service bulletin. ELECTRICAL SYSTEM. Special tools information for High Voltage Protective Gear Requirements.
No. 1706.12021-02-01. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information on packaging and test log requirements for HV Lithium Ion Battery Returns.
No. D5422021-02-01. Service bulletin. ELECTRICAL SYSTEM. Parts withdrawal information for a control panel.
No. D5402021-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Parts withdrawal information for an electric motor.
No. 200-202021-01-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Instructions on how to delete and re-initialize the user (driver) in the event that a message appears that the PCM cannot be closed.
No. 182-202021-01-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Instructions for resetting the VTS theft alarm in the event that Porsche connect services can no longer be used in the vehicle.
No. 117-192020-12-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. Instructions for reworking the wire harness on the seat in the event that a clicking noise is heard during outgoing calls.
No. D5302020-11-06. Service bulletin. ELECTRICAL SYSTEM. Parts withdrawal information for a outer sensor for the Cayenne.
No. 20352020-11-05. Service bulletin. ELECTRICAL SYSTEM. Special Tools information for a new Adapter Cable for EVs.
No. D5252020-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Parts withdrawal information for a control panel on the Cayenne.
No. 133-192020-11-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Information on how to connect to apple iPhone via usb cable in the event that the customer is experiencing issues.
No. 20242020-10-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS/RECEPTACLES. Information on new special tool - VAS 1978/35 Connector Release Tools.
PIWIS2001ac2020-10-01. Service bulletin. ELECTRICAL SYSTEM. Information on PIWIS Tester III Online Update 39.700.000, .010 & .012
No. 141-202020-09-02. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:ADAS. Instructions on how to deactivate "Intersection Assist" in the event of a customer complaint.
No. 125-202020-09-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:ADAS. Instructions on how to deactivate "Intersection Assist" in the event of a customer complaint.
No. 20112020-09-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. Information on a recommended HV battery fire blanket for work on HV vehicles.
No. D5002020-09-02. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. Information on Parts withdrawal of outdated instrument clusters.
No. 112-202020-08-05. Service bulletin. ELECTRICAL SYSTEM. Instructions for folding over the floor covering in the driver's footwell in the event that the fuse box cannot be opened.

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