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Cues while Autopilot/FSD on and MCU restarting?

Jun 27, 2020
42
31
Euless, TX
I encountered an interesting edge case yesterday that isn’t covered in the manual.

I had to restart the MCU while I was driving because the FSD visualization was stuck on the “Confirm lane change” prompt. (I suppose I could have disabled and then re-enabled the feature in Settings, but that wasn’t where my mind went to first.) As I expected, AP/AS continued to function while the MCU restarted.

What I didn’t expect (and found VERY awesome) is that the RTOS (real-time operating system) controlling FSD features beeped at me to, I think, confirm a lane change. It sounded different, almost like an 8-bit version of the tone while MCU is on.

This isn’t described in the manual. As such, It’s gotten me to thinking: is there a guide on the “beep codes” coming from the rtos that I should know if I’m ever in this situation again?

Do any of y’all know?

Thanks in advance!
 

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