Tesla Model S 2014–2020 — technical service bulletin
Bulletin SB2139001R2 · NHTSA communication 10212803 · issued Dec 10, 2021
Technical service bulletin
communication type
Power Train
component
2014–2020
model years
13
vehicle entries
Official summary
Some versions of Model S and X front drive unit halfshafts might cause excessive vibrations during hard acceleration at higher ride height settings. This is exclusively an NVH issue and does not otherwise affect steering functionality, braking, or acceleration.
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.