[jaak]

If you have an inalienable right to repair/rebuild/modify your Tesla do you also have the right to do the same to your future level 5, fully-autonomous self driving car?

Absolutely you do. I expect there to be a certain amount of certification and oversight in safety critical systems - perhaps similar to how the FAA regulates repair and maintenance for general aviation.

[reddog]

Would it then be OK for the autonomous car DIYer to modify the software to drive a bit more aggressively? Or to always favor passenger survival over pedestrian/bicyclist survival in an emergency situation? Or maybe he just wants to use a less expensive LIDAR than the the one car was originally equipped with and wants to mount it in a different place?

For that matter, would you be OK with Tesla open sourcing their existing lane keeping/auto pilot system so current owners could hack it however they want?

[oceanplexian]

Even the FAA has an experimental aircraft category where people are allowed to work on their own aircraft and systems with some, but less limited regulation.