4 ms·
It's not really integral, at most it's a node on the CANBUS and usually it's not even that, just a head unit wired to the steering wheel controls and a built-in
by dingaling 6y ago
It's not really integral, at most it's a node on the CANBUS and usually it's not even that, just a head unit wired to the steering wheel controls and a built-in USB port.
You can rip it out in an afternoon with a pair of DIN keys and a screwdriver.
- giantg2 6y agoI guess what I'm getting at is that if it's part of the CANBUS, it can be an enrtypoint for malicious software. Sure you can pull it out. I had OnStar in a car and I was able to disconnect it by pulling the connection between the cell/gps card and the reat of the car. It's still a pain to have to do that when buying a car.
- ocdtrekkie 6y agoHead units are extremely restricted in what they can do with CANBUS, generally it's a read-only arrangement so the head unit can lock out functions when the car is in motion, or show statistics. An example, in a modern car I recently purchased, there are settings in the head unit for a bunch of personalization aspects of the head unit... To change settings on the ADAS behavior, you have to use buttons on the wheel to control a menu that appears directly above the steering wheel: The entertainment unit has no ability to control settings for vehicle motion-related behaviors, so you have to deal with a less friendly menu that isn't touch capable to set them. This is also why Tesla is particularly unique (reckless?) in pushing OTA updates which can change the car's driving behavior. Nobody else would use OTAs that way, and most OTA-capable hardware in cars can't actually interact with driving behavior components.