Ha ha, you guys are lucky. I have to spend thousands of dollars for scanners and information systems to fix problems that those systems have.
On some vehicles, when changing a tire, the scanner has to be hooked up and the system reset.
Now we are dealing with vehicles that have wireless systems and have problems when 2 similar vehicles are side by side. Now some Lexus vehicles are succeptable to computer viruses, because of the bluetooth systems that the computer uses.
http://www.infosecnews.com/news/index.cfm?fuseaction=newsDetails&newsUID=bc5789cf-e448-4a6e-bee9-a5dd291405ed&newsType=News
Repairing some of the systems is getting expensive and a royal pain. Fibre-optic wiring is the worst to deal with and more vehicles are going to it, the wireless systems and the bluetooth systems.