It's a liability when you're getting equipment serviced, whether there's software or not. We have a Cat 287B skid-steer. After a month of inactivity, it wouldn't come out of "park" mode. A mechanic lifted the cab, tested a couple of solenoids, and stated "must be a bad computer". This is an old machine, so I called Cat and confirmed that it doesn't actually have a computer. I took up the floorboard and found some wires that had been chewed by rodents. We're lucky we don't have a computer, because replacing it wouldn't have helped...