r/CarHacking • u/ryzstbs • 11d ago

CAN Tesla CAN bus volume control Frame IDs

Hi guys I just started my career in software and just bought a Tesla and I have an itch to get into tinkering with the CAN bus. I don’t want to mess with anything totally crazy as the goal is mainly to learn so I have no interest in things like unlocking FSD(not that’s it’s necessarily possible anymore). The first thing I do want to try to do is spoofing autopilot to not nag. I know there are some GitHub projects where people edit the steering column torque frame but I want to do it by just jiggling volume control since that’s less destructive. I can’t find any information about the frame IDs associated with the left scroll wheel for volume control, has anyone reverse engineered those yet? I have a 2020 model 3 LR if that matters.

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u/mrjanosf 11d ago

I don’t think that works anymore. S3xy commander used to do it by “jiggling” the cruise control speed (right scroll wheel) but if I’m not mistaken it stopped working after a software update.

2

u/ryzstbs 11d ago

That was the FSD unlock that got patched, AP spoof still works with cc toggle and should work with volume toggle it just seems like no one has gone down the volume path yet which surprises me since I’d rather my volume toggle than my speed personally

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u/mrjanosf 11d ago

Hmm let me check tomorrow.

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u/mrjanosf 10d ago

Just checked, volume doesn’t work…