@RockmanNeo (Ok, with a tag like Neo - you should be very pro hacking... "The Matrix")
You need to consult an attorney for that question. It has been discussed at length across this forum and many others. Do you void your car's warranty when you install aftermarket stereo equipment? How about non-factory recommended oil, batteries, tires? As most others have put forth - the general answer is "No" as the dealer or manufacturer (not the same) must in general prove that what you did caused the failure. So, new speakers and my stereo stops working - yep, maybe a warranty fulfillment argument (but then assuming you hired a reputable installation company they have to pay for it). New speakers and engine fuel injection computer fails - no, they had better honor the warranty or face losing in court. What can you defend in court, what can they?
I am no attorney, not an attorney spokesperson, do not play one on TV, nor did I sleep in a Holiday Inn last night so don't take my word for it...
I see no problem with Honda Hack regardless of what the OEM may publish. The bulletin they released (attached) sounds ominous however actually does not say what they think it says (Honda US, not Honda Japan). The "excerpt" from the User Manual they include and quote does not make HH a breach of contract or agreement (EULA or TOS), and can't. Read it carefully and note it is mostly referring to YOU reverse engineering their systems, not altering it's function or use for YOUR purposes. They also based their entire interface (the part we are talking about) on Android, with a Linux kernel and wrapper. Those are opensource code packages, you don't even need HH to access most of these features - HH just makes it easier for non-Devs. It does make the author of Honda Hack in breach of the agreement, however not you the user/owner if you OWN the vehicle. If you are leasing then yes, you must (as part of your normal lease agreement, may depend on state) adhere to all OEM license agreements and terms. So that is another story... However, if you own it, you own it, unless it is an Apple product. ;-) Remember that a lot of this is just CYA.
Now, there is a very different argument about if HH actually decrypts a piece of code versus just replacing it (the whitelist is what it really changes). In the USA, the DMCA has a secondary law that is independent and separately enforceable and that is DRM. A lot of OEMs are using DRM as a way to lock you into using their support services. Honda does not seem to be one of them, however their are many where "jailbreaking" your device is actually in violation of the law just like copying a DVD movie, even if you own the movie it is illegal to make a backup copy of it because you "have to break DRM" and that is the catch-all. However, that is a debate for another forum, at a later time, when I have a fresh bottle of Scotch on hand!
Now, funny thing about Manufacturer to Dealer to End Purchases (User) warranty agreement. Honda makes the vehicles, and often "sells" them to Dealers for resell. Honda "specifies" how the vehicles should be cared for in order for the OEM Warranty to be transferred to the purchaser as "new" ie, placed in service. With the Clarity being a very unique case (dealers had and most still have no idea how to even spell Clarity yet alone care for them on their lot) the issue of battery warranty may come up. If the car sat in the dealer lot for 6 months with a dead HV battery and the dealer never charged it or followed the OEM "Dealer" guidance, well - could be interesting... Honda will cover you, the end user, I would bet as they have a Brand to protect - but they may rebuke the dealer's later claims for labor reimbursement etc.
https://en.wikipedia.org/wiki/Electronics_right_to_repair
https://www.edmunds.com/auto-warranty/what-voids-your-vehicles-warranty.html
https://en.wikipedia.org/wiki/Magnuson–Moss_Warranty_Act
Cheers,
Cash
