Apparently the fuel system (fuel canister, fuel dispender, fuel vapor valves). It caused fuel, gasoline, odor to enter inside the vehicle cabin, causing dizziness and nausea to me, my wife and two kids. The problem was confirmed by the dealer. They try to fix it on 3 different occasions without sucess. As of today they requested the vehicle as they recognized is a safety issue and handed my a temporary vehicle. They told me that the repair date is indefinite as the parts doesn't exist in the US, and was order directly to the manufacturer (outside of US). I have knowledge about other persons that are experimenting the same problem.