Tesla Model 3 2017–2018 — technical service bulletin
Bulletin SB-19-40-002 · NHTSA communication 10153436 · issued Jan 26, 2019
Technical service bulletin
communication type
Power Train
component
2017–2018
model years
2
vehicle entries
Official summary
Certain Model 3 vehicles might have been manufactured without a rear drive unit (RDU) breather, and consequently might have contaminated gearbox fluid.
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.