The contact owns a 2014 Kia Soul. The contact stated while driving at an undisclosed speed with cruise control activated, the RPM’s suddenly increased to over 4,000 and the contact heard an abnormal sound coming from the engine compartment. The contact pulled over to the shoulder of the roadway where the failure persisted. The check engine warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The contact stated that she was previously informed that the catalytic convertor needed to be replaced prior to the failure; however, the catalytic convertor had not been replaced. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 120,000.