They want kill switches in every vehicle by 2025. Now you know why.
(media.patriots.win)
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It's federally illegal to "tune" cars and the feds have been cracking down like crazy now that the resident is in office. Additionally, most manufacturers are adding security gateway modules to cars that restrict two way communication (read only access no writing) unless you have an approved tool. These approved tools have to pass compliance reviews which include not being able to upload software/firmware that isn't approved by the OEM.
Kill switches would likely be implemented through the OTA (over the air) system most cars have already. This was introduced with On-Star back in the 00s where the car could be remotely unlocked, started, and report in an accident "automatically." Now that all cars are coming with some form driver assistant system (most of which utilize windshield cameras) the feds could get live-time visual of what your car was seeing if they wanted to.
The bottom line, don't buy a new car until this shit is settled.
Your comment is on the nose. I know from trying to find a tuner to change some parameters on my 17 Wrangler that 2017 is the first year extra steps were involved to unlock the ECM.
I thought the verbiage was a "firewall" for the CAN communications link but i could be wrong.
On Chrysler models it's a physical chip/module in between the DLC and all the vehicle modules that interrupts the "write" capability. In theory, one simply has to put a jumper wire past the module for the wire(s) they want use.
Your car must be a late '17 because it shouldn't have the dedicated security module unless it's an '18.
I never investeigated it further than the SCT website saying the tuner would require an unlocked ECM on 17 and newer wranglers.
By investigating, i meant physically on the Jeep, ive read alot more about this and why it came to be, and i guess it was from when one of the automotive mags published an article about being able to hack a Gra d Cherokee. Kinda scary now that everything is throttle by wire, steer by wire, etc...
just kill the cellular interface, easy peasy