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Service bulletins for the 2020 Porsche 911

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.

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

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By component

By trouble code

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

Bulletins, newest first
No. 2229.72023-07-06. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the conbox draw discharges 12v battery.
No. 103-202023-06-06. Service bulletin. ELECTRICAL SYSTEM. Technical information for a complaint - selector lever button lighting not functioning at times
APA2 (911)2023-05-05. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting with information on APA2 reprogramming or recoding instrument cluster
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. 40-23-12023-05-03. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Technical information on APA2. Reprogramming/coding instrument cluster
No. 31-202023-04-07. Service bulletin. ELECTRICAL SYSTEM. Technical information for the diagnosis and handling of 12v lithium ion battery
No. 103-202023-03-04. Service bulletin. ELECTRICAL SYSTEM. Technical information for a complaint - selector lever button lighting not functioning intermittently
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. 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.
No. 159-21-12023-01-10. Service bulletin. ELECTRICAL SYSTEM. Information on technical information for a complaint involving the Cayenne, Cayman, Boxster, Macan, and 911. The SD map update/OTA map update does not function
No. 22342023-01-10. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for improper odometer and speedometer function
No. 178-222022-12-07. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Technical information for WNN3 - re-programming connect control unit.
No. 2229.42022-12-07. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Instructions on advanced technical information for the conbox current draw discharges 12v battery - for the Cayenne and 911.
No. 2229.32022-12-06. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the conbox current draw discharges 12v battery.
No. 2229.22022-11-04. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the Cayenne and 911 - current draw discharges 12v battery
No. 2229.12022-11-04. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information for the Cayenne and 911 - current draw discharges 12V battery
No. 22292022-10-05. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the Cayenne and 911 - conbox current draw discharges 12v battery
No. 181-222022-10-05. Service bulletin. ELECTRICAL SYSTEM. Technical information for spare parts requirements - 12 volt lithium ion starter battery
No. 103-202022-10-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Technical information for a complaint involving the selector lever button lighting not functioning intermittently - replacing selector support.
WNK92022-09-13. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting with information on workshop campaign WNK9 - reprogramming selector level control unit.
No. 145-222022-09-08. Service bulletin. ELECTRICAL SYSTEM. Technical information for WNK9 - reprogramming selector lever control unit.
No. 22262022-09-08. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the Macan, Cayenne, and 911. restarts unexpectedly.
No. 22242022-09-08. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Instructions on advanced technical information for the Cayenne and 911 - inno-drive does not function.

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