Yeah not so sure about that. States will have different laws, and NDAs are not Non-Competes -- different story altogether.
Most states can't / won't enforce Non-Competes, but NDAs often have teeth.
Most states also have warranty and lemon laws, often specifically aimed at cars, so you could fight the NDA or ignore it and push for a warranty violation or lemon law case.
That doesn't mean NDAs are unenforceable. It just means you're getting them to fix the problem without signing their NDA, and presumably going through more hassle in the process.
It's pretty painful to drop thousands on lawyers when you know they have significantly more money and better lawyers
I say this as a person who very much wanted to sue Tesla and backed down on the advice of my lawyer friend -- I was most likely only increasing my net loss and severely stressing myself out