Ultimately in this case it's a courts problem and not a law problem. The only place where law might be the issue would be in limiting damages for the companies in question.

It's simply easier for them to take all the extra profit they're getting and deflect lawsuits. From an American standpoint, that means the manufacturers are getting too much out of the deal and the only way to fix that is to make the lawsuits more painful. Because it's not like it's manufacturers vs. the public - it's really the manufacturers vs. third-party repairers AND the public.