I don't know about tractors, but there's nothing legally preventing you from fixing your car. The problem is technical: the diagnostic tools may only be availa

I don't know about tractors, but there's nothing legally preventing you from fixing your car. The problem is technical: the diagnostic tools may only be available to authorized dealers/repairpeople. That said, despite all the crying about people not being able to work on cars any more, I just don't see it. I change my own oil on my 2015 Mazda, and I can easily change other parts on it too. Maybe there's certain brands that intentionally throw up roadblocks? But I don't see it with mainstream Japanese brands; these cars are very easy to work on.