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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Only bulletins with component: 12-volt battery are shown. Show all
| No. 2229.11 | 2024-03-05. 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 |
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| No. 31-20 | 2024-03-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Technical information for a diagnosis and handling of 12 volt lithium ion battery |
| No. 2229.9 | 2023-09-09. 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. 178-22 | 2022-12-07. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Technical information for WNN3 - re-programming connect control unit. |
| No. 2229.4 | 2022-12-07. 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. 2109.1 | 2022-01-04. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Instructions on advanced technical information for critical 12V Li-ion battery recycling for the 911, Cayenne, Taycan, and 918 Spyder. |
| 122-F6B5X-10 | 2019-10-15. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Instructions for checking for appropriate labels on the Li-Ion battery in the new 911 |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.