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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. 31-202023-09-08. Service bulletin. ELECTRICAL SYSTEM. Technical information for diagnosis and handling of the 12 volt lithium-ion battery
No. 2224.22023-08-03. Service bulletin. ELECTRICAL SYSTEM. Instructions for advanced technical information for the PCM and Porsche innodrive software temporarily unavailable
No. 23152023-08-03. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the Porsche Mobile Charger
No. 2116.22023-08-03. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the red warning instrument cluster - occupant seat belt not fastened.
No. 2229.82023-08-03. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the conbox current draw discharges 12v battery - Cayenne and 911.
No. 53-21-22023-08-03. Service bulletin. ELECTRICAL SYSTEM. Technical information for the message “e-power not available” appears in the instrument cluster with the message “oil level too high"
No. 1706.22023-07-06. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for packaging and test log requirements for high voltage lithium-ion battery returns.
No. 268-222023-07-06. Service bulletin. STEERING; ELECTRICAL SYSTEM. Technical information for an activated warning message "power steering reduced" in conjunction with fault memory entry B200049.
No. 2229.72023-07-06. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the conbox draw discharges 12v battery.
WNN12023-06-06. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting with information on workshop campaign WNN1 - supplying drivers manual for Porsche Mobile Charger
No. 15-232023-06-06. Service bulletin. ELECTRICAL SYSTEM. Technical information for a complaint involving the high-voltage battery that cannot be charged/fault memory entry B200000 in the high voltage charger control unit
No. 23082023-06-06. Service bulletin. ELECTRICAL SYSTEM. Special tools and equipment for the map update service for the PCM4 and 5
No. 2302.12023-05-03. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING:HEADLIGHTS; VISIBILITY. Instructions on advanced technical information for the Cayenne - auxiliary headlight incorrect operation
No. 2226.12023-05-03. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the Macan, Cayenne, and 911 - restarts unexpectedly - software fix temporarily unavailable.
No. 2224.12023-05-03. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the Macan, Cayenne, and 911 - Porsche innodrive software temporarily unavailable
No. 2229.62023-05-03. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for Cayenne and 911 conbox current draw discharges 12v battery
No. 31-202023-04-07. Service bulletin. ELECTRICAL SYSTEM. Technical information for the diagnosis and handling of 12v lithium ion battery
No. 193-222023-03-04. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Technical information - Check Engine Warning Light Active / Fault Memory Entry "P26B100/00CB24" in the Thermal Management Control Unit (TME):
No. 23022023-03-04. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information for the front turn signal inoperative - Cayenne as of MY19
No. 126-202023-03-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC. Technical information for a complaint - error message "engine control system fault" when brake pedal is pressed slightly. Vehicle still moves normally.
No. 205-212023-02-06. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE. Technical information for a Message "Lane Change Assist Not Available – Service Necessary" in the instrument cluster: re-programming control units for lane change assist and, if applicable, radar sensor for front corner radar
No. 31-202023-02-06. Service bulletin. ELECTRICAL SYSTEM. Technical information for a diagnosis and handling of the 12 volt battery (on-board battery)
No. 2231.12023-02-06. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information involving the mobile charger connect (PMCC) for software bugs and loss of power setting
No. 155-212023-01-10. Service bulletin. ELECTRICAL SYSTEM. Information on technical information for WML0 - retrofitting loudspeaker booster
No. 2229.52023-01-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Instructions on advanced technical information for the Cayenne and 911. An update to the conbox current draw discharges 12v battery.

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