NHTSA Complaint #11631176 — 2025 TESLA MODEL Y

On or around December 1 2024, the **AP4 computer** in my 2025 Tesla Model Y shorted out, causing a **complete failure** of all systems controlled by this computer. The following safety-critical and driver-assist features have become **non-functional**: 1. **Cruise Control** (adaptive or otherwise) 2. **Forward Collision Warning** 3. **Lane Departure Warning** 4. **Lane Keeping Assistance** 5. **Blind Spot Warning** 6. **Parking Collision Warning** 7. **Full Self-Driving** and **Auto Park** features 8. **Cameras** required for Autopilot functionality Additionally, because the **GPS system has failed**, the vehicle’s **Navigation system** is inoperable. This impacts Tesla’s unique route planning feature that **sets up Supercharger stops** during long journeys. Without a functioning navigation system, I cannot properly plan my travel or locate charging stations, which severely affects the usability of the vehicle. **Safety Concerns:** The failure of these systems, especially safety features like forward collision warning, lane keeping assistance, and blind spot monitoring, puts both the driver and others on the road at risk. Losing access to safety-critical functions after an update is unacceptable and poses a serious danger to vehicle occupants and surrounding traffic. **Incident Details:** • The issue occurred **immediately following a software update**. • Tesla pushed the update **remotely** without providing any warning or indication of potential risks. • The failure appears to be related to a hardware short in the **AP4 computer**, directly caused or exacerbated by the update. **Desired Outcome:** • A thorough investigation into Tesla’s software update process and its effect on vehicle hardware and safety systems. • A resolution that prevents similar failures in other vehicles and ensures system updates do not compromise vehicle safety or critical functionality.