Owners of older Tesla Model S and Model X vehicles have been reporting some issues with their MCUs.
The touchscreen becomes less responsive, the power-up time becomes longer, the screen freezes and has to be rebooted, or there is even total failure of the MCU unit.
Some owners believe that it is a problem with the embedded multimedia-card memory (eMMC) in the MCU and that it is being overwritten to the point of failure.
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