On November 30, 2024, I purchased a new 2024 Mercedes-Benz GLS 450 4MATIC equipped with factory-installed Pirelli tires (size: P 275/45HR21 front; 315/40HR21 rear). At the time of the accident on February 22, 2026, the vehicle had only 15,257 miles. While driving on the interstate in wet conditions, the tires failed to provide adequate traction, causing the vehicle to hydroplane. The loss of traction felt as though the vehicle was driving on ice and was inconsistent with over a year of prior operation in similar weather conditions without issue. The suspected components involved include the Pirelli tires, as well as the Electronic Stability Program (ESP), traction control system, and 4MATIC all-wheel drive system, which did not appear to effectively intervene. The vehicle spun and was involved in a crash, placing myself, my wife, and my childâwho has Autismâat significant risk, along with surrounding motorists traveling at interstate speeds. Despite visible tread remaining, the tires did not perform as expected. Based on warranty expectations of approximately 50,000 miles, the apparent performance failure at only 15,257 miles raises serious safety concerns. The vehicle is currently at a collision repair facility and is available for inspection. The issue has not been reproduced, and a manufacturer inspection is pending. The vehicle has been inspected by law enforcement and insurance representatives. There were no warning lights or alerts related to traction, stabilit