Cars are starting to fix their own recalls overnight—here's how it works About 10 years ago, a software update for your vehicle, as if it were your smartphone, was rare enough to make the news. Tesla owners were often the only ones who were aware of it and talking about it. In 2018, Consumer Reports tested a new Model 3 and clocked its stopping distance from 60 miles per hour at 152 feet, seven feet longer than a Ford F-150. Tesla responded with a wireless update to the anti-lock braking software, a fix that allowed the Model 3 to stop in 133 feet without a physical repair. Today, a car can update itself in the middle of the night while it sits parked in the driveway and the owner sleeps. There's no phone call to the dealership, no appointment to schedule, and no waiting room involved. Berg Insight, a research firm that tracks the connected car market, found that 83% of new cars sold worldwide in 2025 had a built-in cellular connection, up from 79% the year before. In North America, that number was even higher, with 94% of new cars sold in 2025 having the built-in cellular connection necessary to receive updates wirelessly, or over the air (OTA). How "over-the-air" applies to your car Updates are becoming more extensive OTA stands for over-the-air. It describes any update your vehicle downloads and installs through its own cellular connection or a paired Wi-Fi network. No dealer visit or USB drive is required. Instead, the manufacturer issues new software for your vehicle, which downloads in the background and installs once it's parked and turned off. Some updates finish in minutes, while others ask the vehicle to sit still overnight so nothing interrupts the install. OTA updates can span a wide range of