First off i said Autopilot. Secondly i didnt imply that FSD or autopilot was entirely based on GPS. Something is going wrong in Teslas that makes the vehicles think they are out of position like what was described below. Thus GPS is the likely culprit. That doesnt mean it is.
Here is the best description of this sudden veering ive seen to date:
A Tesla driver claims the autopilot feature on his car took over seconds before he veered off a New Jersey road, and he blamed the vehicle’s technology for the crash.
The Tesla Model X veered to the right suddenly, and the steering wheel locked into place as a message appeared that a new lane was detected, Carter told police.
Police said the car went off-road, hit a curb, struck traffic signs and then drove over another curb before it stopped in a grassy area.