The contact owns a 2019 Chevrolet Silverado 1500. The contact stated while driving at slow speeds, the vehicle lost power steering functionality. The contact was unaware of a warning light being illuminated. The contact stated that the failure persisted upon turning off and restarting the vehicle. The contact stated that the power steering functionality returned after resuming driving. The contact stated that the failure recurred intermittently, and the failure occurred mostly while driving in 4WD Mode. The dealer was notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure via email, but no assistance was provided. The failure mileage was approximately 18,000.