NHTSA Complaint #11538324 — 2015 KIA SORENTO

The engine of this vehicle has always rattled on start-up, but the sound goes away after a few seconds. Oil levels have always been maintained and the oil has been changed on a regular basis at the scheduled mileage intervals. Within the last month, the engine rattle is present when shifting from 2nd to 3rd gear, at approximately 30-40 mph. The engine rattle is coupled with a revving sound that would indicate that the engine is working hard to accelerate, yet the RPMs remain relatively low for the amount of sound made by the engine. To date this has not posed a safety risk, but I consider it to a potential safety issue if the engine failure problems present in other Kias of similar years are also present in this year and generation of Sorentos with V6 engines such as this vehicle. The engine issue is currently being inspected by a mechanic to see if they can replicate the issue and identify a specific problem. No inspections have been performed to date by the manufacturer, police, or insurance representatives. No engine lights or warning signs were present before this started occurring.