Replying to Avatar Braydon Fuller

I believe it's often called the telematics module on wire charts. I don't know if unplugging it will void warranties or have other affects. Almost every new vehicle from 2016 forward (I think) has one, kinda bizarre.
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₿illy 11mo ago

Definitely won’t void warranty, although I would probably plug it back in before you take the vehicle to a dealer for repair/maintenance. Also, if you have a vehicle that gets over the air software updates(mostly EVs for now), unplugging this will keep you from getting new updates

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ManiMe 11mo ago

Any other adverse effects of unplugging the modem … other than software updates?

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₿illy 11mo ago

Depending on manufacturer, the modem may also provide geolocation data through a gps antenna. So if you have built in navigation in the vehicle, it will stop working. Also, if your car has any type of emergency call system like on Star, that will no longer function in an emergency.