REPAIR Act Software Access: What 270,000 Shops Actually Get
A 2022 truck rolls into an independent bay with a transmission shudder. The tech plugs in a scan tool, pulls the codes, knows the fix. Then the dealer-grade calibration the repair needs sits behind a manufacturer login the shop can't reach, and a one-day job becomes a tow to the franchised dealer forty minutes away. That gap, not the wrench and not the part, is the whole fight behind the REPAIR Act.
On June 4, speaking from the Oval Office about a meeting the day before with General Motors CEO Mary Barra, a Ford executive, the Alliance for Automotive Innovation, and the National Automobile Dealers Association, President Trump described automakers' position on repair bluntly: "They don't want people to fix their car. I said, 'That's strange.'" The same week, House Energy & Commerce Chairman Brett Guthrie and Ranking Member Frank Pallone committed to advancing repair protections in this year's highway bill, and Auto Care Association president Bill Hanvey urged Congress to pass Dr. Neal Dunn's REPAIR Act, citing the 270,000-plus independent repair businesses it would protect.
I have sat on both sides of this counter. I ran a shop where the wrong-or-locked data turned profitable jobs into referrals to the dealer, and I now work the parts side, where "we can't get the calibration" kills a sale that was otherwise mine. Here's what the press release leaves out: the headline number, 270,000 shops, is real, but it tells you nothing about whether your shop is actually helped. The bill's value lives entirely in the fine print of what "access" means.
Access Is Three Different Things, and Only Some Are in the Bill
When a shop owner hears "right to repair," they picture one thing: the data the dealer has, on my bench, today. In practice the access an independent needs splits into three layers, and they are not equally hard to win.
The first layer is diagnostic read access, pulling fault codes and live sensor data. Most shops already have this through the OBD-II port and a capable scan tool. The second is service information and procedures, the manuals, schematics, and torque specs, which the REPAIR Act's own framework requires manufacturers to provide. The third, and the one that matters most, is bidirectional and security-gated functions: module programming, immobilizer and key relearns, ADAS calibrations, the writes that actually complete a modern repair.
The bill, as written, requires manufacturers to grant the ability to bypass software locks that prevent repairs, while explicitly protecting proprietary software, and to deliver documentation through secure APIs or physical ports. Read that carefully. "Provided it does not infringe on proprietary software" is the seam where this gets litigated. An automaker can comply with the letter, hand over the manuals, keep the diagnostic port open, and still route the high-value programming functions through a credentialed gateway it controls. If your business depends on that third layer, the headline win may not reach you. That is the trap I want shop owners to see before they treat passage as the finish line.
Telematics Is the Real Lock, and It Is Already a State-Level Fact
The mechanical port on the dash was never the contested ground. The fight is over where the data lives. Newer vehicles stream diagnostics off-board to manufacturer cloud systems first; the question is whether an independent shop can reach that stream on equal terms or only through the OEM's gateway, on the OEM's permission. That is a logical lock, not a physical one, which is exactly why a wrench can't solve it.
This is not only a federal debate. Massachusetts voters approved the first major automotive right-to-repair measure in 2012 with 86 percent support, a margin that should end any argument about whether the public wants this. That law forced open diagnostic access at the state level and led to a 2014 nationwide memorandum of understanding between automakers and the aftermarket. As of January 1, 2026, six additional state laws took effect, and by the Public Interest Research Group's count, roughly a quarter of Americans (25.75 percent) now live under some form of repair-access protection.
Here is the operator's reality that the percentage hides: state coverage is a patchwork of different rules, different enforcement, and different scopes. A shop chain operating across three states may owe three compliance postures. That fragmentation, more than any single automaker's resistance, is the strongest practical argument for a single federal standard, and it is the argument I would put in front of a legislator before any talking point about consumer choice.
A Shop-Owner's Readiness Check Before You Bank on This
Whether or not the federal bill passes this session, the access shift is already underway at the state level, and the shops that benefit will be the ones whose tooling can actually consume the data. Legal access you can't technically use is worth nothing. Run this check on your own bay:
| Capability | What to verify | The failure mode if you skip it |
|---|---|---|
| Diagnostic read | Scan tool covers the makes and model years you service, with current software | You "have access" but can't see the codes that justify the repair |
| Service procedures | A current subscription to OEM service info for your top three brands | You get the part right and still miss a torque spec or a required relearn |
| Module programming | A J2534 pass-thru device plus the OEM's credentialed account, where required | The job stalls on the last step and goes to the dealer anyway |
| ADAS calibration | Targets, space, and trained staff, not just a tool purchase | A miscalibrated sensor becomes a liability claim, not a comeback |
Most shop owners I talk to assume the legislation hands them all four rows. It does not. It pries open the door; the tooling and the OEM accounts are still on you. The shops that treated the 2012 Massachusetts win as a cue to invest in pass-thru hardware and training pulled work back from dealers. The ones that waited for a law to make them whole are still waiting.
Where I'd Be Cautious, and What I'm Leaving Out
Two things I'd flag before anyone celebrates. First, the "open the locks" framing oversells how fast anything changes. Even after a mandate, a shop has to buy the interface, hold the subscriptions, and train people; the bottleneck moves from legal to operational, and that transition has a real cost a small garage can feel. Second, there is a genuine security tension here. Module programming over an open channel is a legitimate attack surface, which is why I'd want the bill to mandate a credentialing scheme that independents can join, not a blanket "give everyone write access" that hands automakers an easy excuse to slow-walk compliance.
I'm also deliberately not reaching for the EV-economics and AI-investment numbers that float around this story. GM's roughly $6 billion EV write-down and its $13-to-$15-billion profit outlook are real, but they belong to a different argument about electrification, not to whether your shop can program a module. Welding them onto the repair-access case is how a clean argument turns into padding. The repair question stands on its own.
About
I'm Ray Donnelly, Master Automotive Technician and Aftermarket Parts Authority at KZMALL Auto Parts. I'm ASE Master Certified (A1–A9) with L1 Advanced Engine Performance and a Parts Specialist (P2), with 22 years that ran from a franchised-dealer service bay, through a decade owning and running my own independent shop, into parts and technical training. I lived the exact pinch this bill is about: a diagnosis I trusted, a part I had on the shelf, and a final programming step locked behind a credential I couldn't get, so the customer drove to the dealer and didn't come back. That's why I read repair legislation for the fine print, not the headline.
At KZMALL I work the "right part, first time" side of this, fitment, quality tiers, and the related work that prevents the comeback, for shops and counter pros worldwide. KZMALL is a global B2B aftermarket distributor built on standardized ACES/PIES fitment data, 50,000-plus SKUs across passenger and commercial applications. Reach the desk via [contact](/contact) or see the catalog and fitment tools on the [about](/about) page.
Conclusion
The political moment is real, a president calling repair restrictions "strange," committee leaders moving to attach protections to the highway bill, an industry association putting 270,000 shops on the record. But a shop owner should read the REPAIR Act the way I read a parts catalog: past the headline, into the spec. The bill opens diagnostic data and service information cleanly. The high-value layer, the security-gated programming that completes a modern repair, sits behind a "proprietary software" carve-out that will be fought over for years.
So don't wait for the law to make you whole. Audit your own four rows, read, procedures, programming, calibration, and close the gaps you can control now. The state patchwork already proves access is coming in pieces. The shops that benefit will be the ones whose benches can use that access the day it lands, so get your tooling and your OEM accounts squared away before then.
Original reporting: Trump endorses Right to Repair legislation after meeting with automakers, *Aftermarket Matters*.
Frequently Asked Questions
Not automatically. The bill cleanly opens diagnostic data and service information, but the high-value programming and security-gated functions sit behind a "does not infringe on proprietary software" carve-out. Automakers can comply by handing over manuals and an open port while still routing module programming through a credentialed gateway they control. Assume you'll still need a pass-thru device and an OEM account for that layer.
Partly. About a quarter of Americans now live under state repair-access protections after six new laws took effect January 1, 2026, but coverage is a patchwork that varies by state. If your state isn't covered, your near-term access still depends on the OBD-II port, your scan-tool software, and the OEM subscriptions you buy. The federal bill aims to replace that patchwork with one standard, which is the real argument to bring to a legislator.
Legal access you can't technically use is worth nothing. Reading fault codes needs a current scan tool; following procedures needs an OEM service-information subscription; programming a module needs a J2534 pass-thru plus a credentialed account; calibrating ADAS needs targets, space, and trained staff. The legislation pries the door open, but the tooling and accounts are still your investment. Verify all four before you bank on a job staying in your bay.
Because newer vehicles stream diagnostics to manufacturer cloud systems first, so the contested question is whether an independent can reach that data stream on equal terms or only through the OEM's gateway on the OEM's permission. That's a logical lock, not a physical one, which is why a better wrench or scan tool can't solve it. Mandated, standardized data access is the only thing that does.
No, and I'd be wary of anyone who tells you to. GM's roughly $6 billion EV write-down and its profit outlook are real but belong to the electrification debate, not to whether you can program a control module. Mixing market-size and EV-economics numbers into the repair-access case is padding that clouds a clean decision. Plan around the access layers your shop actually touches.
