Porsche Macan 2020–2021 — technical service bulletin
Bulletin No. 51-21 · NHTSA communication 10199883 · issued Jul 30, 2021
Technical service bulletin
communication type
Service Brakes, Hydraulic
component
2020–2021
model years
2
vehicle entries
Official summary
Porsche service campaign information for Workshop Campaign WMC3 - Replacing Hydraulic Unit.
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.