NHTSA Complaint #11711368 — 2025 POLESTAR POLESTAR 3

My vehicle has experienced repeated and unresolved software/firmware failures that cause loss of essential vehicle functionality and repeated vehicle immobilization. Since purchase, the vehicle has been taken out of service multiple times for software-related repairs, including firmware updates and system resets, yet the problems persist and the vehicle cannot be relied upon to operate normally. The failures are not cosmetic or infotainment-only; they affect core vehicle systems and overall operability. After service visits, the vehicle is often returned with the same or new software-related issues, requiring additional service visits and extended downtime. The cumulative time out of service now exceeds 30 days. An authorized Polestar dealer principal, who also serves on the brand’s national leadership board, explained to me that U.S.-spec vehicles are running materially different firmware than vehicles sold in other markets. According to this explanation, Chinese-developed firmware was removed for U.S. regulatory reasons and replaced with U.S.-developed firmware that was not fully validated at the time of sale. As a result, U.S. customers are effectively acting as beta testers for unstable software. Because modern EV software controls safety-critical vehicle functions, a vehicle that repeatedly fails, becomes immobilized, or cannot be reliably restored to service after software updates presents a safety and reliability concern. The vehicle’s unpredictable behavior and lack of dependable operation raise concerns beyond inconvenience and indicate a potential systemic defect affecting U.S.-spec vehicles.