[SpeakerToAnimals]

It's called the Digital Millennium Copyright Act of 1998, or DMCA. It was written because movie studios were worried that people would break the digital locks on DVDs, make copies and pirate them.

This does not apply to cars. Federal law requires the manufacturer to provide the same tools and online manuals their dealers use. Hyundai puts all their manuals and parts lists online, free to all. Toyota/Lexus/Scion will sell it to you. The Techstream intelligent tester can be had for a mere $8000.00 The shop I work for has one.

Time to get Congress to fix the copyright laws.

[nascarnation]

Do Hyundai and Toyota sanction modifying their software?

Or just diagnosing and repairing sensor and operational faults?

Big difference between those two things.