On September 5, 2026, at approximately 7:18 p.m. Pacific Time, a 2025 Chevrolet Tahoe High Country equipped with the 6.2L L87 V8 engine and approximately 18,000 miles experienced a sudden catastrophic failure while the engine was running. There were two occupants. A distinct pop was heard. The engine immediately lost power and multiple dashboard warning lights/messages began flashing. Within approximately 20-30 seconds, smoke and an electrical-burning odor were noticed. The vehicle was shut off manually and both occupants exited. Flames were first observed toward the rear of the engine compartment. The fire spread extremely rapidly, and the vehicle was substantially engulfed within approximately two minutes and completely destroyed. The sudden loss of propulsion created a crash risk, and the rapid fire placed both occupants at risk of serious injury or death. No physical injuries were reported. The precise failed component and fire origin have not yet been determined. The vehicle had received an oil change from an independent service facility within approximately 30 days before the incident. The cause has not been confirmed by GM, a dealer, or an independent fire expert. The vehicle is involved in an active insurance total-loss claim; inspection should be coordinated promptly before the salvage is released, dismantled, sold, or destroyed. More than 100 photographs and several videos taken during and after the fire are available. A fire department report is pending. Because