http://www.autoblog.com/2015/04/20/automakers-gearheads-car-repairs/
here are a few excerpts
here are a few excerpts
Automakers are supporting provisions in copyright law that could prohibit home mechanics and car enthusiasts from repairing and modifying their own vehicles.
In comments filed with a federal agency that will determine whether tinkering with a car constitutes a copyright violation, OEMs and their main lobbying organization say cars have become too complex and dangerous for consumers and third parties to handle.
Allowing them to continue to fix their cars has become "legally problematic," according to a written statement from the Auto Alliance, the main lobbying arm of automakers.
Complex Software, Increased Risk
Industry concerns are mounting that modifying these ECUs and the software coding that runs them could lead to vulnerabilities in vehicle safety and cyber security. Imagine an amateur makes a coding mistake that causes brakes to fail and a car crash ensues. Furthermore, automakers say these modifications could render cars non-compliant with environmental laws that regulate emissions.
GM: Telematics Industry Threatened
For their part, manufacturers say they're more concerned about potential losses than new revenue streams. Tinkering with the ECUs can void a car owner's warranty, but automakers remain concerned with their liability if third parties make changes that could result in physical or financial harm. They noted unsavory mechanics could easily manipulate odometers, and make cars appear to have fewer miles on them than they actually do, a problem for unsuspecting used-car buyers.
Automakers: We Know Our Cars Better
Manufacturers and their lobbyists have submitted comments on six of the 27 proposals. The specific topics cover: unlocking mobile connectivity devices, unlocking consumer machines, jailbreaking all-purpose mobile computing devices, vehicle software diagnosis repair and modification, and software security and safety research.
If there's a recurring theme in the comments beyond their assertions of ownership, it's that they say they know the intricacies of these ever-more-complicated software systems better than consumers and third parties. The Association of Global Automakers says the manufacturers and their suppliers "best understand the interdependence of automotive systems and are in the best position to know whether a modification, regardless of how slight, would disrupt another system."