The contact owns a 2015 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the steering wheel became inoperable with the power steering warning light illuminated. The contact stated that the steering wheel became difficult to turn. The vehicle was taken to the dealer, where it was diagnosed that the steering control module had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 115,000.