When your vehicle outlives its cloud: What happens next?

Of course, the OEMs get something out of it, too. Cloud-based services allow manufacturers to perform OTA software updates, eliminating the need to pay dealers for labor-intensive warranty repairs such as software-related safety recalls, bug fixes, and powertrain calibration errors. Instead of repairing one vehicle at a time, automakers can push updates to thousands of vehicles simultaneously. Plus, they can offer “product improvements” to owners, including UX changes, ADAS refinements, and new software versions for infotainment apps long after the start of production. Vehicles require unique hardware for OTA and connected services, of course. The basic components of original equipment (OE) hardware in most passenger vehicles include a telematics box (TCU) with a 3G/4G/5G modem, a SIM/eSIM, and antennas—these comprise the “smartphone” component. There’s also a main onboard computer with flash memory and a boot system to install the new hardware (programmed to revert to early code if something goes wrong so the car doesn’t “brick” itself). In 2022, many US cellular carriers, including AT&T, T‑Mobile/Sprint, and Verizon, shut down their 3G networks to create system capacity for upcoming 4G and 5G rollouts. When the 3G signal finally ceased, vehicles with the technology lost their connected cloud-based services (Porsche, Nissan, and Volkswagen were just a few of the automakers affected). Lexus owners felt this shift acutely. The company’s Enform connectivity, which relied on the 3G network and was fitted to nearly all 2010–2017 models, went dark overnight because the hardware simply wasn’t forward‑compatible. (Lexus refunded owners for paid time left, while opportunistic dealers suggested that frustrated owners upgrade to a new Lexus that supported current technology.) When cloud-based connectivity goes away, it’s more of an inconvenience than a disaster. While remote conveniences and safety services end, they don’t serve an important role in the vehicle’s daily mechanical operation, meaning the powertrain, climate control, and accessories continue to work. But what if you use those cloud-based features and need an alternative once the existing system shuts off? Thankfully, there are a handful of possibilities, including software/OTA updates, hardware/TCU replacements, aftermarket telematics and OBD devices, and smartphone apps to keep vehicles connected to the cloud.