Practical considerations
"That's an inaccurate description of what's going on. The "proprietary" systems are designed to prevent farmers from making their own repairs, or from going to a non-Deere-authorized repair center. And those rules are starting to be overridden by state "Right to Repair" laws."
There's another angle here with heavy construction vehicles. A lot of these are leased or rented out on short term jobs and the leasing/rental company wants the location (so that expensive kit doesn't simply disappear) and working hours (to organise servicing).
The manufacturer also has a leasing division, so there's competitive data involved. The first thing a leasing company wants to do is to disable the manufacturer's feedback and install their own.
Biting the hand that feeds IT
