Porsche Macan 2020–2021 — technical service bulletin
Bulletin WMC3 · NHTSA communication 10199893 · issued Jul 30, 2021
Technical service bulletin
communication type
Service Brakes, Hydraulic
component
2020–2021
model years
2
vehicle entries
Official summary
Porsche intranet posting with preliminary information on 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.