NHTSA Complaint #11712998 — 2023 GMC YUKON

While driving approximately 63 mph on a busy roadway, my 2023 GMC Yukon experienced a sudden failure of the brake system, including loss of normal braking capability along with failures of the Electronic Stability Control (ESC) and ABS systems. The vehicle displayed warning messages stating “Brake System Failure” and “Service ESC” and entered a reduced-speed mode. Prior to this incident, there were no warning lights, messages, or symptoms indicating a problem. During the failure, the brakes became largely unresponsive, placing me, my two minor children who were passengers in the vehicle, and surrounding motorists at serious risk of a high-speed collision. After extended deceleration, a minimal amount of braking power partially returned, allowing the vehicle to eventually come to a stop. The vehicle has not yet been inspected by a dealer, manufacturer, police, or insurance representatives, and the issue has not yet been reproduced or confirmed by a service center. The vehicle remains available for inspection upon request and has not been repaired. This incident occurred without prior warning and involved a sudden and dangerous loss of braking capability at highway speed.