Toyota Supra 2020–2021 — technical service bulletin
Bulletin T-TT-0639-21 · NHTSA communication 10188911 · issued Feb 2, 2021
Technical service bulletin
communication type
Power Train
component
2020–2021
model years
2
vehicle entries
Official summary
TT: Customers may state they have a fluid leak from under the vehicle or technicians may notice a leak while performing other work.
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.