Porsche 911 2019–2022 — technical service bulletin
Bulletin No. 2229.4 · NHTSA communication 10227311 · issued Nov 7, 2022
Technical service bulletin
communication type
Electrical System
component
2019–2022
model years
12
vehicle entries
Official summary
Instructions on advanced technical information for the conbox current draw discharges 12v battery - for the Cayenne and 911.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.