NHTSA Complaint #11624394 — 2023 TESLA MODEL Y

Model Y s/w version 12.5.4.1 The model Y can be made to oscillate in the travel lane at highway speeds I think I experienced this at 70-75, it would seem to apply at any capable speed. Proper behavior: 1) driving on the highway in FSD 2) trigger the left or right turn signal to initiate a lane change by automation. What actually occurs: 1) driving on the highway in FSD 2) hold the turn signal in the desired up or down position to initiate a lane change. 3) the Tesla begins to switch lanes, and will continue to further its lane change provided you continue to hold the turn signal (up/down). 4) If you release the turn signal input "early", that is prior to the Tesla determining that the new lane is the current lane, it will immediately begin reverting to the original lane that you attempted to leave. 5) It begins to over correct, requiring maybe 5 damped oscillations. Its very uncomfortable, and exposes a vehicle on the edge of control - the vehicle is not traveling neutrally on its suspension. To be clear, it is damped, but I don't see how it could be described as stable at highway speeds.