There was a time when basic maintenance meant basic maintenance.
Brake pads. Lights. Sensors. A starter. A module. A part comes off, a part goes on, the car checks out, and you move on with your life.
That used to be the general understanding of ownership. You bought the vehicle. You maintained the vehicle. You found a local mechanic, did the work yourself, or went to the dealership if you wanted to. The choice was supposed to belong to the owner.
Now we are moving into a different world.
Not just John Deere. Not just farm equipment. Not just phones and laptops. We are seeing the same logic creep into regular vehicles, local dealerships, replacement parts, diagnostic systems, electronic parking brakes, sensors, lights, and modules. More and more, the question is not simply whether the part fits. The question is whether the vehicle’s software will accept that the part exists.
That is where right-to-repair stops being a slogan and becomes a real pocketbook issue.
John Deere has become one of the clearest examples. On July 8, 2026, the FTC announced a settlement with Deere requiring the company to provide farmers and independent repair providers access to the same diagnostic and repair tools available to authorized dealers, including tools needed to diagnose, repair, and clear codes. The FTC described the case as part of protecting the ability of owners to fix equipment without being forced through an authorized dealer network. (Federal Trade Commission)
That matters because the same structure can exist in cars.
A modern vehicle is not just a mechanical machine anymore. It is a rolling computer network wrapped around an engine, brakes, sensors, cameras, lights, and safety systems. That does not automatically make the technology bad. Some of it improves safety. Some of it improves reliability. Some of it gives better diagnostics than we ever had before.
But when that technology is used to block repair instead of verify repair, we have a problem.
Take electronic parking brakes. The old parking brake was simple. A lever, a cable, adjustment, and mechanical force. Now many vehicles use electronic parking brakes. That means replacing rear brake pads may require putting the system into a service mode, then resetting or calibrating it afterward. Independent scan tools can do this on many vehicles, but the point remains: a once-basic brake job can now depend on access to software functions. Diagnostic companies openly describe EPB reset functions as tools used after replacing brake pads, rotors, or calipers so the electronic parking brake can be adjusted and function correctly. (Innova Electronics)
That is not automatically evil. A modern system may need a reset. A sensor may need calibration. A brake actuator may need to know where it is.
The issue is access.
If the car already has self-diagnostics, if the system can already detect the new part, test the new part, and confirm the new part is working, then the owner should not be trapped into a dealership visit just to ask permission for the car to accept a repair. The vehicle should be able to say: yes, the part was replaced; yes, the system checks out; yes, the repair is complete.
That is not reckless. That is exactly what diagnostic systems are supposed to do.
The bigger danger is when serialization and software pairing become a business model. A headlight, sensor, module, or other component may physically work, but the vehicle may still reject it, throw a code, disable a feature, or require dealer-level authorization. Then the junkyard part becomes suspicious. The independent shop becomes limited. The owner becomes dependent. The dealership becomes the gatekeeper.
And eventually, that changes the used-parts market too.
If independent shops and owners cannot install salvaged parts because the car will not accept them, who benefits? Not the customer. Not the local mechanic. Not the junkyard. Not the person trying to keep a ten-year-old car on the road because a new car payment would crush them.
The manufacturer benefits. The dealership network benefits. The controlled-service pipeline benefits.
That is why Massachusetts has been central to this fight. Massachusetts’ vehicle telematics right-to-repair law gives consumers the right to access mechanical data from vehicles with telematics systems and the right to authorize an independent repair shop to access that data for diagnosis, maintenance, or repair. (Massachusetts Government) In February 2025, a federal judge dismissed the remaining challenge from automakers against the voter-approved Massachusetts law, allowing the state’s expanded repair-access rules to stand. (Reuters)
That is not some abstract legal fight. That is the difference between owning the machine and merely being allowed to operate it until the manufacturer says otherwise.
The FTC has also made clear that companies cannot simply tell consumers their warranty is void because they used an independent shop or third-party parts. Under the Magnuson-Moss Warranty Act, companies generally cannot condition warranty coverage on the use of a particular branded part or service unless that part or service is provided for free. The FTC has warned companies that misleading warranty restrictions can violate federal law. (Federal Trade Commission)
But here is the loophole in spirit, even when the law says otherwise: technology changes faster than enforcement.
A company may not be able to openly say, “You must use our dealership.” But if the car will not complete the repair without proprietary software, locked diagnostics, server authorization, calibration access, or serialized part approval, the result can become the same thing.
That is the part that should concern people.
Right-to-repair should not mean people get to bypass safety systems or install garbage parts with no accountability. Nobody serious is saying that. Brakes should work. Airbags should work. Sensors should be calibrated. Safety systems should be tested.
But repair access and safety are not opposites.
A fair system would allow the vehicle, the owner, and the repair shop to verify the repair. If a light module is replaced, test it. If a brake component is replaced, run the service mode. If a sensor is replaced, calibrate it. If the part fails the check, flag it. If it passes, accept it.
That is reasonable.
What is not reasonable is using software to turn ownership into a tollbooth.
Because that is the bigger trend. We are being pushed toward a world where we buy the thing, finance the thing, insure the thing, fuel the thing, maintain the thing, and then still have to ask permission to fix the thing.
That is not ownership. That is licensed dependency.
And it creates waste. A perfectly usable part may be thrown away because software will not accept it. A repairable car may become too expensive to maintain because basic work requires locked tools. A local shop may lose work not because it lacks skill, but because it lacks manufacturer permission. A customer may be forced into a dealership bill not because the repair is complex, but because the repair is controlled.
That is how the system screws people.
Not always with one giant dramatic move. Sometimes it is one locked module at a time. One serialized part at a time. One diagnostic subscription at a time. One “dealer only” reset at a time. One $200 reprogramming charge at a time.
And then we are told this is progress.
No. Progress would be a vehicle that can diagnose itself, verify a repair, and let the owner choose where that repair gets done.
Progress would be software that protects safety without destroying ownership.
Progress would be a system where the dealership can compete on quality, convenience, and trust, not because the manufacturer welded the gate shut and handed the dealer the only key.
Right-to-repair is not about letting people butcher machines. It is about preventing companies from turning necessary repair into a permanent revenue trap.
If you bought the vehicle, you should have a meaningful right to maintain it.
If the part works, the system should be able to verify it.
If the repair is safe, the car should accept it.
And if the only thing stopping that repair is a software lock designed to force you back into the dealership, then that is not safety.
That is control.