As the driver of a 2014 Jeep Grand Cherokee</br> You may be having issues with the oxygen (also known as o2) sensors in Your vehicle. The o2 sensors can be found inside the exhauSTStream</br> near the evap canister. The canister is found just above the muffler at the rear of Your suv. If the sensors or one of the sensors has gone bad</br> You will need to replace it.