Not sure about the warranty effect, but on many other vehicles there are also bypass cables for the telematics units that allow you to physically remove them entirely from the car without losing any functionality (well, other than the online functionality obviously).
In my case, I'll gladly take potentially voiding the warranty on a car that almost certainly has it expired anyway, over being surveilled and monitored by the manufacturer so my usage habits can be reported to insurance companies.
In my case, I'll gladly take potentially voiding the warranty on a car that almost certainly has it expired anyway, over being surveilled and monitored by the manufacturer so my usage habits can be reported to insurance companies.