| Apr 24, 2019 | SB-21-39-001
| 3 | Replace Front Drive Unit Halfshafts | 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. Upon customer complaint, inspect the vehicle for excessive vibrations from the front drive unit during hard acceleration. If the condition is present, replace both front drive unit halfshafts with updated components, and if necessary, replace the front drive unit clevis and axle seal. R2 updates clevis replacement part numbers. R3 adds conspicuity for Customer Pay billing. | FRONT DRIVE UNIT | Model S,Model X,2021+ Model S |