I did computer security for a living so this one really ticks me off. Unless you really want it, avoid signing up for the extras where you can start your car remotely, find where your car is, anything that lets them communicate with your vehicle. Unfortunately this includes the remote help button which most people our age want. Either way in the setup there should be a privacy option. My Honda Accord has that on the opening screen, enable it. ALL car companies are known to sell your data to anyone who wants to pay for it.
Many people say they don't care but there have been cases where the data was bought and found it's way to the persons insurance company. Sudden braking? One guys insurance doubled because of that event, which does get recorded and if they can they will download it. His insurance went up without them even knowing the reason was that caused it. Should have hit that squirrel.
Also and even worse... We just bought a used Toyota Corolla hybrid in California. Many manufacturers now install a "security device" to all their cars adding anywhere from $1k to $2k to the price which is not optional and is nothing but a GPS tracking device (see above). They originally used the GPS for financed cars so they could locate them to repo them if necessary. Now that data is so valuable everybody gets one. Even new cars. At least with Toyota , and if one manufatuurer does it you can bet most others do too.
So even if you don't enable the extras they can still track you. You can opt out of this too but most people don't even know it's there. They won't remove it until you buy the car and maybe not even then. One problem is that they are so poorly designed that if the car sits for an extended peirod it drains the battery because it never turns off. Even the OEM ones installed in cars have had issues with battery drain. Especially Subaru.
Plus be sure it's not a hidden item not on the sticker price until you sit down to negotiate. Then it will appear as a security device and they will offer to give it to you for free and say they just dropped the price of the car $2000, back to the sticker price. Negotiation over. This is exactly what they tried to pull on us. We went to a different dealer and same story except the security device was only $1k. Keep an eye out for that scam and make them remove it.
Here is what I am talking about .
Just because I'm paranoid doesn't mean they aren't out to get me.