The contact owns a 2019 Jeep Grand Cherokee. The contact received notification of NHTSA Campaign Numbers: 22V426000 (SERVICE BRAKES, HYDRAULIC) and 24V838000 (SERVICE BRAKES, HYDRAULIC); however, the parts to do the recall repair were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The contact stated while driving downhill at approximately 20 MPH, the steering wheel seized. The contact was unable to turn the steering wheel to the left or the right. The vehicle later returned to normal functionality. There was no warning light illuminated. The vehicle was taken to an independent mechanic to be diagnosed; however, no cause for the failure was provided. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 70,000. Parts distribution disconnect on NHTSA Campaign Number: 22V426000 (SERVICE BRAKES, HYDRAULIC). VIN tool confirms parts not available for NHTSA Campaign Number: (SERVICE BRAKES, HYDRAULIC).