Porsche Taycan 2020–2021 — service campaign
Bulletin No. 120-21 · NHTSA communication 11023001 · issued Aug 30, 2025
Service campaign
communication type
Electrical System
component
2020–2021
model years
4
vehicle entries
Official summary
Technical information for WMH0 - Re-Programming Various Control Units (Workshop Campaign)
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.