Landmark right-to-repair legislation has taken effect in 2026, requiring all vehicle manufacturers selling in the United States to make diagnostic tools, repair data, and software updates available to independent repair shops and vehicle owners at a reasonable cost. This builds on earlier state-level initiatives like Massachusetts' Data Access Law and extends protections nationwide.
The practical impact for DIY mechanics is significant. OBD-II diagnostic data beyond basic emissions codes — including manufacturer-specific modules for ABS, airbag, transmission, and body control systems — must now be accessible through standardized interfaces. This means affordable scan tools can now read and clear codes that previously required dealer-level equipment costing thousands of dollars.
Automakers must also provide access to telematics data, allowing third-party apps and services to offer maintenance reminders, remote diagnostics, and vehicle health monitoring. For consumers, this means more choices for where and how they maintain their vehicles, potentially saving 30-50% compared to dealership service rates.
The regulation also addresses the growing role of software in modern vehicles. Manufacturers cannot void warranties solely because an owner performed their own maintenance or used independent parts that meet OE specifications. This is particularly important as vehicles become increasingly software-dependent, with some containing over 100 million lines of code.