alt Hacker News> limit or disable certain functionality in the vehicle: ... over-the-air updates, which provide new ... safety enhancements ...
I wonder what happens if you disable the e-SIM (in the US) and then a safety recall appears via software update - do dealers have any way to update control modules besides OTA?
This is a huge unresolved issue with EVs IMO; ICE cars are required to provide emissions-relevant updates over software which can operate using a J2534 passthrough device, which effectively means powertrain modules have to allow (potentially signed) updates over CAN using software that can be obtained by an end user (a lot of people don't know this; for almost any ICE car in the US, you can buy a 3-day or 1-week subscription to the dealership level diagnostic software for a somewhat reasonable fee and use it with a J2534 device).
But for EVs, there's no such rule and as far as I can tell it's entirely a gray area in the US now; the NHTSA require a "remedy" for recalls but nobody seems to have pushed back to determine whether OTA is truly a remedy. The traditional autos all offer dealerships as a backup option, but Tesla and Rivian have several recalls with only OTA remedies already. This seems sketchy.
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This is tangential, but Kia declined to cover an engine failure, under warranty that was extended by recall, because I had not done an update.
Edit: I eventually recovered most of the cost via a settlement court.
> do dealers have any way to update control modules besides OTA?
I get some updates OTA, but the dealer has to install some others, and when I took it there they updated it with a USB stick.
"a lot of people don't know this; for almost any ICE car in the US, you can buy a 3-day or 1-week subscription to the dealership level diagnostic software for a somewhat reasonable fee and use it with a J2534 device"
Whoa, didn't know that. Well the caveat is finding a decent J2534 device, right? There are a lot of cheapo knockoffs. Then actually knowing how to use the software with it.
What's special about EVs that gives them this loophole? Is it something to do with not having dealerships and going direct to consumer?
WiFi. Flip it on for an update, then leave it off.
> do dealers have any way to update control modules besides OTA?
Yes.
I wonder what happens if you disable the e-SIM (in the US) and then a safety recall appears via software update - do dealers have any way to update control modules besides OTA?
Yes.
You get a letter in the mail asking you to take your car to the dealer so they can install the update.
Been there. Done this.
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> I wonder what happens if you disable the e-SIM (in the US) and then a safety recall appears via software update - do dealers have any way to update control modules besides OTA?
I would assume so. Even on older cars, service techs can typically manually push firmware updates over the OBD-II / J2534 port. Rivian's OBD-II port actually hides an Ethernet signal inside of it - so the interface is certainly there.
Fun fact: You can buy an Ethernet adapter directly from Rivian here to connect to the car's internal network: https://rivianservicetools.com/Catalog/Product/TSN00535-300-...