Sentry Mode Issues causing havoc

Probably a software bug or worst-case a defective AP computer.

They switching to another usb flash drive

We had this issue when we were slightly low on coolant following a radiator replacement + refill. The AP computer is near the highest point of the cooling loop, so any microscopic air bubbles in the system will eventually settle there, causing the computer to overheat. We also experienced blacked out cameras (Autopilot unavailable) and navigation issues. Once the air was purged and coolant topped up, issue went away.

Sounds like a service visit. If you have another USB drive it might be worth a shot before your appointment.

Could you please update this thread if they declare it to be a computer chip failure. I’ve faced the same thing due to a OTA download and communication issue to my computer

My car is named havoc!! But onto advice: Given the fact that it’s impacting AP & nav data it’s likely not just the drive that’s bad. You could try getting a new drive, you could even just pull it & see if AP works without it present if you wanted to be sure. Also have you tried resetting the car by disconnecting the low voltage battery? You can find many guides how to do so for your specific model on YT/google.

As an update Tesla want me to pay around £2000 to replace the computer that they broke due to an OTA update

Turn off sentry mode reboot the car and then re enable sentry mode.

So just an update this is the quote I received from Tesla https://preview.redd.it/wrv9x1k87zcg1.jpeg?width=2622&format=pjpg&auto=webp&s=d1e931acaacf9f8140b3df8fcab64a3e4f488828 Not sure why they want to work on cooling system.

Tried but no success

Looks like it's similar to what we're being quoted for.

Hey OP Was this the fix for your sentry issue? I’m receiving the same error message

Replacement of the whole computer unit, around £1800 cost to replace.