The contact owns a 2023 Kia Sportage. The contact stated that while driving at an undisclosed speed, when she depressed the accelerator pedal, the vehicle did not accelerate as required, and she was rear-ended, causing her vehicle to rear-end the vehicle in front. The vehicle was towed to the repair facility; however, the vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that after research she discovered there was a recall and she had not received the recall notification, NHTSA Campaign Number: 23V410000 (Service Brakes, Hydraulic). The manufacturer was not made aware of the failure. The failure mileage was approximately 75,000.