jmward01
8 hours ago
I like the idea, and we need variety in the market to keep things evolving, but I like the bells and whistles. I just don't want it to phone home. Honestly, I want the title to be 'we don't have a network connection and we can still be a car'. Privacy is my #1 feature.
stavros
8 hours ago
I have a BYD Seal and this was as simple as removing the SIM (it's in the armrest compartment and just pops out).
roarcher
2 hours ago
On some cars you can also unplug whatever radio/modem doodad is responsible for phoning home. I have a Ford Maverick and disconnected the "telemetry module" which resides under the transmission hump by the front passenger seat.
I no longer receive updates to the infotainment system and I can't unlock the doors with my phone, but I also don't have the dealer emailing me service ads with my exact current mileage and tire pressure.
srameshc
7 hours ago
This is how it should be if the user prefers not to be connected.
abakker
7 hours ago
I mean, even back in the OnStar days, you could "opt out" and cancel the service and it would track you anyway. With BYD or any other car maker, I'd be worried the SIM was a placebo.
observationist
7 hours ago
This is where things like a HackRF or flipper zero are useful - leave a scan running over 24 hours from multiple fixed locations within the vehicle and you can detect if there are any wireless transmissions, and then triangulate on exactly where they come from using several pieces of yarn cut to the length of estimated distance from the source.
Cars should be independent, local only devices. Having cloud dependencies is just reckless and stupid.
ASalazarMX
5 hours ago
Can this be done without picking up the myriad of SIMs that pass near your car? How would you know which of them is your ghost SIM?
observationist
4 hours ago
You'd need to differentiate between sources - you'd want to capture every signal, then sort into buckets by frequency, by regular timing, and so forth - if a device is sending a burst every 5 seconds, then you can grab every 5 second occurrence of a signal at that frequency and make a reasonable assumption that all that data is from the same radio.
You can filter for all the frequencies that show up regularly, then you differentiate by signal strength - group occurrences of the same frequency into similar dB buckets, then correlate the changes based on new fixed positions within the car, and run some calculations on changes in signal strength to obtain a dB to distance calculation. The strength to distance calculation can be estimated by making some assumptions about the type of radio you're looking for - a simple cellular module is going to be different than a WiFi repeater, or a wireless fob, or a bluetooth tracker.
From the fixed points within your car, you can tie one end of a piece of yarn to where the sensor was affixed, and the length of the yarn should correlate to your dB to distance estimate for that position, and with 2-3 or even 4-5 threads you'd be able to group their loose ends together to get a rough physical indication of exactly where the radio transmission is coming from.
The grouping won't be exact, but it'll literally point in the right direction, and if the threads are too long, or pointing to something buried in the chassis or whatnot, then you can reduce the lengths of your yarns by the same percentage of reduction and they'll be "pointing" at wherever the radio source is.
You're going to get a general location, like "under the dashboard" or "in the glovebox" or "somewhere under the spare in the trunk", not a millimeter precise location. You could probably vibecode a way of processing the data in a browser, and use a bunch of splats and AI modeling of your car and so forth to get a very precise and useful pinpoint of a device with a fancy UI, but you can just use a spreadsheet and text files of logged signal records, the process isn't super difficult.
jmward01
4 hours ago
Anyone know of reviewers that do this for cars? I just don't see privacy focused reviews on basically anything. We have reviews about how reparable things are and how good/bad the features are but rarely do I see privacy mentioned or in-depth analysis of TOS and the like to give buyers a sense of how good/bad cars and other devices are. Does everyone just assume it is terrible and go on or is there some reason this isn't a top level item for journalists to evaluate?
hrimfaxi
7 hours ago
What would the car maker gain from adding a decoy sim?
dylan604
6 hours ago
analytics. same thing anyone that collects data gets. how they use it might be different. most use it to monetize the data. some might actually use it to improve things. because some do use for making money, those that do for actual improving will always be deemed suspect
uyzstvqs
2 hours ago
Privacy, and I don't need my car to be a driving collection of CVEs 10-20 years from now, because of some built-in modem that's ancient by then.
formerly_proven
7 hours ago
A data connection still has tangible benefits e.g. remotely starting the AC/heating, live status of chargers / route planning, online map updates, eCall etc
jmward01
6 hours ago
If only I could trust that is all it did. I want 'airplane mode' for my vehicle. I turn my phone to 'airplane' mode all the time specifically because I don't want to give them access to where I am and all the other telemetry. I want incredibly strong protections that their network access isn't abused. Tools like logging all connections by application and the ability to block anything. Blocking when these tools can use the network (only when I have actively let them because I am actively using it for example) and opt-out by default with independent third party auditing of everything they release so I can build trust. I want real guarantees with real consequences when they are broken. I want devices to be mine, not theirs. Right now it is like someone has keys to my house and regularly comes in and installs hidden cameras without my permission. It is evil and people should go to jail for it. Unfortunately though, right now I have 100% trust that they will abuse their position which means I see every 'feature' that connects in any way as a major negative and not a positive. It is deeply unfortunate because I want to enjoy the things I pay for instead of treating them like the enemy that they currently are.
pnw
5 hours ago
Exactly. If the last decade has shown us anything, consumers will always opt for the convenience features and cost far ahead of privacy concerns. I can't think of many successful consumer products with privacy as their key selling point, despite how many times it shows up here. Apple products maybe, but privacy is listed as feature #6 of the 7 features highlighted halfway down the page on https://www.apple.com/iphone/