NHTSA Complaint #11706976 — 2025 BUICK ENCLAVE

What component or system failed or malfunctioned, and is it available for inspection upon request? The engine and/or powertrain system catastrophically failed while the vehicle was in motion on the freeway. The vehicle lost power, shut down, and became disabled. The vehicle is currently in the possession of the Buick dealership and is available for inspection upon request. How was your safety or the safety of others put at risk? The failure occurred while driving my husband and children in fast-moving freeway traffic. The vehicle suddenly lost power and shut down, forcing us to coast to the shoulder while traffic was moving around us. This created an extremely dangerous situation that could have resulted in a serious crash, injuries, or fatalities to my family and other motorists. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. The Buick dealership confirmed the engine failure and advised that the vehicle needs a replacement engine. The vehicle was towed directly to the dealership following the incident and was declared inoperable. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle has been inspected by an authorized Buick dealership service department. The manufacturer (GM/Buick) has been notified, and a corporate case has been opened. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? Yes. Multiple warning alerts appeared immediately before the shutdown, including critical warnings such as low oil pressure and instructions to turn the vehicle off. Moments later, the vehicle lost power completely and shut down.