Shane McCutchen credits countless hours of programming and playing video games as a kid with conceiving the technology that enables vehicles to automatically give themselves a health physical. The industry-first innovation then allows vehicles to "talk" to their owners by sending them regular diagnostic e-mail messages.br br br The technology is now available on the GMC Acadia using patented OnStar safety and security technology.br br br The self-diagnosis includes tire pressure, how much oil life remains, odometer readings and deeper diagnostic details if a dash service light goes on.