Owners/service Manual problems of the 2017 Tesla Model X

While driving in autopilot my mcu (Tesla controller) occasionally fails. This means the autopilot computer works fine but all audio notifications do not work. The autopilot will change lanes for me without the normal auditory notification. Turn signals are silent. The mcu will then completely freeze (no touch input and gps frozen while driving) requiring either a manual reboot by myself or it crashes completely and reboots itself. 5 visits to my service center in the past 13 months of ownership to address this issue have not resulted in a resolution. They tell me they "flashed the storage" or "upgraded the firmware" but the car continues to prove this did not resolve the issue. Autopilot functioning without notifying the user of maneuvers could be deadly. It is a self driving car but still requires drivers to pay attention and take over if autopilot makes a faulty decision. I have videos of this happening. Attached I have uploaded invoices from the service center showing I have brought mcu failure issues to them on multiple occasions and continue to have issues. Note that line item 14 on the invoice dated 01132021 Tesla inaccurately states my no audio on automatic lane change issue. I requested they rephrase this issue to the issue I reported but they refuse to put this in writing. Why? suspicious.