Quoted from MrBally:Reread my post below. While driving on I-275 near Detroit near a major junction of three freeways, the electronics completely shut down, except for the "engines" and brakes. I was about to use my turn signal as I needed to get over two lanes to enter a different highway in a mile (1.62Km). No turn signals. In an instant, the display went dark. Music shut off, climate control shut down. I could not safely operate the vehicle to exit to where I needed to go. I did not know this was a reboot when it happened the first time.
Those 20-30 seconds before the display just started to show the Tesla logo seemed like forever on a crowded highway that was still moving at 60-70 MPH (100-115KPH). This is why I asked if the headlights will stay on or not as I would not want to be driving at night in that situation.
When my "old school" ICE car has a major failure, I usually get an idiot light or more. I kinda like it when the dash board looks like a pinball machine where both the Specials and Extra Ball lights come on along with other feature lights lighting up. At least I know the car is somewhat alive. I was not about to pull the driver card out of my pocket and hold it by the console to attempt to "restart" the car. At least when it happened again a couple weeks later, I just kept my cool. I believe if this happens to more than a few vehicles in somewhat of a pattern, there could be a service campaign or worse to correct this.
You appear to be confusing the entertainment and display system with the actual computer running the car. They are not connected and run completely independently. Tesla needs a better job explaining this to people. The car is still 100% functional when the screen goes down. All driving functions including the signal lights still work you just don't hear the tick tock through the stereo. I reboot mine on the go all the time, its completely safe.