The only way to stop that is to turn off the phone when you don't want to be tracked.
As to the vehicle you may have to get a lawyer involved since installing a tracking device other than the vehicle maker would be a legal matter and you need to pursue charges against them. Get a lawyer.
Someone has hacked into my phone and can track all my usage, track where I am, and also did the same to my vehicle. How can one find out a cell phone number without me giving it to them?