Navigational (global Positioning System) Gps problems of the 2014 Tesla Model S

Touchscreen failed entirely. Touchscreen had been not operating well for 5y or more, but company would not take responsibility. Company reported it was due to firmware or software, but clear the mcu or touchscreen gradually lost more and more functionality. Was a safety issue with rear camera not engaging and voice commands for traffic or gps not working, climate control also intermittent. All functions worsened until final failure. Extended warrtanty was not offered. Communication was weak and intermittent, and its own safety issues. Now, required to pay entire replacement cost and working well.

Sometime in 2015/16 my computer system (infotainment/mcu) stopped working correctly. It moved very slow, screen would load slowly, gps loaded even slower, car stopped recognizing the key was in the car and web connection stopped connecting or connected very slowly. I asked the service center to look at this during several routine or repair visits and I was always told it was a firmware issue. After they update the firmware, the problem continued. I complained about this during every visit to the service center and only recently realized that they never noted it as a 'customer complaint' in my service records. They simply listed that they looked at it as part of their routine courtesy check. This is misleading since I definitely complained and asked them to fix it. In recent years, the screen has started randomly going black and often (while driving or idle), the gps only occasionally works, the web never works (hasn't worked for more than 2 years). Now Tesla says my mcu is faulty and I have to pay $2500 for an upgrade. In the meantime, the computer system has indicated the 12v battery was bad (I paid to replace it but believe this was an mcu error now that my system rarely works correctly). I've reported this issue with the computer more than 6 or 7 times and no one was ever able to determine the cause or repair it. Only on a recent visit in 2019 was I told that the mcu will have to be replaced at my expense.