Just happend to me this week.
As others already reported the incident happens suddenly without and warning sign before.
Luckily I was on a side road only driving 30lm/h.
However, the experience was very shocking because the break-down happened suddenly.
The warning sign came up and the rear wheels stopped.
I had no chance to drive to a safe position. The car stopped in the middle of the road.
The tesla imergancy central was not very helpful. They were friendly but pretty much useless.
I had to organize the tow truck over my regular insurance company.
What will happen if you have this in the middle of a highway driving 120 km/h?
I am not sure if I would be safe as there is literaly no time to react at all. THE CAR STOPS WITHIN SECONDS!
The car is now in the service center. They have to replace the whole rear motor.
But honestly I am very nervous right now. Is it safe to drive a Model Y in a highway?
Do I have to expect a sudden break-down at any time without any warning sign?
Also the response from the service center did not realy help to relax: "It can happen. Things sometimes do break"
WTF.