Automakers are increasingly pushing consumers to accept monthly and annual fees to unlock preinstalled safety and performance features, from hands-free driving systems and heated seats to cameras that can automatically record accident situations. But the additional levels of internet connectivity this subscription model requires can increase drivers' exposure to government surveillance and the likelihood of being caught up in police investigations. Police records recently reviewed by WIRED show US law enforcement agencies regularly trained on how to take advantage of "connected cars," with subscription-based features drastically increasing the amount of data that can be accessed during investigations. Nearly all subscription-based car features rely on devices that come preinstalled in a vehicle, with a cellular connection necessary only to enable the automaker's recurring-revenue scheme. The ability of car companies to charge users to activate some features is effectively the only reason the car's systems need to communicate with cell towers. Companies often hook customers into adopting the services through free trial offers, and in some cases the devices are communicating with cell towers even when users decline to subscribe. In a letter sent in April 2024 ... US senators Ron Wyden and Edward Markey ... noted that a range of automakers, from Toyota, Nissan, and Subaru, among others, are willing to disclose location data to the government.