Re: About WiFi7

Aug 22, 2024 Last reply: 1 year ago 24 Replies

So you keep saying but you never specify how. GPS is down only (no return path) so my car is not using GPS to talk to anyone but it could obviously send its location by other means. WiFi almost always needs a password or a captive portal agreement but when the car is in for service it would be possible for the service location to connect it to WiFi. Bluetooth is short range so it isn't talking to the makers. That leaves cell tower communication.

If my car is using cell tower access to talk to its maker without me knowing then I want to know about that. Some cars do use cell tower communication, for example leased vehicles where the leasing company wants to track the car, but that would be in the leasing contract and only works where there are cell towers.

Which if the above methods is the car using to talk to its maker? And when is it using that method? On the move or in service or at home or other? Does the car store information about my use of the car for later transmission to its maker?

If you would be kind enough to answer in one paragraph instead of writing five paragraphs about something unrelated then I'm interested.

It's fine if you don't know the answers. It's the kind of thing I would ask for, in writing, when I buy a new car.

A quick look at my firewall log this morning shows that only

formatting link
worth adding to my blacklist file. That took all of 30 seconds.

I can now do some real work (from anywhere).

Currently I'm trying to put together an LTSpice simulation of the circuit on the second to last page of the LTC4267 data sheet. I'm having difficulty with models for TLV431 and PS2911 Does anyone know any such models or equivalent devices which have models?

Yes that could become a problem. I can't wait for "Car is installing updates. You will wait." So perhaps I'd prefer a Linux car.

Happy retirement and good luck with the electric car in winter.

You don't. Like I said it's ok if you don't know.

<...>

Many modern cars have cellular capability that is not exposed to the user and just used for telemetry etc.

Often it is not used for software updates, that requires a wifi connection.

I assume the car manufacturer has some form of limited data transfer agreement with the cellular carrier.

There is usually no monthly charge to the car owner for the basic serivce, it is covered by the manufacturer. If there are additional capability that also exploits the cellular link there may be a charge for that. For example on the Tesla there is a $10/month charge if you want audio streaming, real-time traffic information or improved map capabilities.

kw

Thank you for that information.

When I buy a car I want to know exactly what data it will be transmitting over the cellular network, who it is transmitted to and what they are using the data for. If it's not possible to decline then I will consider a different manufacturer or even an older car.

I'm not currently in the US. But not far away.

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required