All Driver Assistance Features Shut Down While Driving On The Highway

[Cyberius Wilhelm]

While driving on the highway, maintaining speed between 80-88mph for a prolonged amount of time, (typically 15 minutes or more), all Driver Assistance features shut down with accompanying fault messages: Cruise control disabled, stability control disabled, traction control disabled, automatic vehicle hold disabled, automatic emergency braking is unavailable, lane departure avoidance features unavailable, adaptive ride control degraded, and vehicle hold feature unavailable.

And most noticeable, regenerative braking is disabled for the remainder of the drive.

Initially this only happened not using FSD, but recently trying to avoid it from occurring while using FSD it also happened, (Hurry & Mad Max). Below 80mph it has not occurred, but the flow of traffic is commonly 80+ mph and nearly every prolonged drive this happens.

Pulling off, parking, and doing a reboot has not worked to restore the features. It takes parking and the vehicle sitting for a prolonged time to restore them.

The local Tesla Service Center has no known remedy. Has anyone else had this happen and had it successfully fixed?

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[UberNoob]

FSD is only going to work up to 85, forcing it over will disable it and earn you a strike. Takes a full week to loose/ forgive a strike, get 5 strikes and your in FSD jail for a week.

When your issue happen and you pull over to reset it, first go into service mode and view all the alerts, you can click each alert and view what condition triggered said alert. One of them will point to the underlying cause. Your issue could be a plethora of things ranging from overheat, lack of can buss communication, or AI computer beginning to fail.

My issue not exact but on the way back from Michigan 600 miles or so, FSD would randomly cut off, red hands saying take over immediately. There would be an error on the screen pop up briefly saying self driving disabled due to system error. A few miles later I could re enable it. Fast forward a week and I goto my kids ball game leaving the game started the truck and message on screen says. AI computer requires service self driving disabled. Went into service mode and alert said permanently disabled. Took it to service and they had to replace the whole computer.