NHTSA Complaint #11453860 — 2017 KIA OPTIMA

The contact owns a 2017 Kia Optima. The contact stated while driving 50 MPH, while slowing down the brake pedal was depressed and would engage however, after several seconds the brake would disengage and the vehicle would roll forward. The contact was able to safely stop and noticed a knocking sound coming from the rear area in the trunk as the vehicle came to a stop. The contact stated no warning light was illuminated. The contact took the vehicle to an independent mechanic, where it was diagnosed however, the mechanic found no failure. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 83,000.