Subaru Crosstrek 2017–2021 — technical service bulletin
Bulletin 09-73-20R · NHTSA communication 11000825 · issued May 14, 2024
Technical service bulletin
communication type
Engine
component
2017–2021
model years
8
vehicle entries
Official summary
This bulletin provides a revised service procedure to follow when repairing minor coolant seepage identified to be coming from the air plug at the top of the radiator.
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.