Porsche Cayenne 2018–2022 — technical service bulletin
Bulletin No. 30-22 · NHTSA communication 10213077 · issued May 13, 2022
Technical service bulletin
communication type
Electrical System
component
2018–2022
model years
5
vehicle entries
Official summary
Information on WMJ9 - re-programing gateway control unit (battery sensor)
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.