General Motors did it for cars with OnStar and now you can get the same immediate service response in your tractor from Leica Geosystems. Leica's service is a remote diagnostic system called the Virtual Wrench, which is a feature on the company's autosteer guidance system. The Virtual Wrench lets the folks at Leica tap into its real-time kinematic (RTK) system 24/7 and fix it at the touch of a button from their headquarters in Englewood, CO. So a farmer in a tractor cab with the autosteer system (called mojoRTK) can push a button on the system's small console and get a live technician to respond, just like with OnStar.