The contact owns a 2019 Jeep Cherokee. The contact stated while driving at an undisclosed speed, the aœService 4-WDa warning light was illuminated. The vehicle was taken to a local dealer, where it was diagnosed that the power transfer unit needed to be replaced and related the failure to NHTSA Campaign Number: 25V011000 (Power Train); however, the VIN was not included. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 121,000.