i took my vehicle in to find out what this humming noise was coming from under my hood. they found the problem and they found oil and fluid leaks. they did FULL DETAIL on pictures and everything. this makes it easier for the dealership to see WHAT EXACTLY their mechanic was to have found and fixed it BEFORE SELLING TO ME. . i will return my vehicle for all my repairs in the future. AND they was sooooo busy that week and they got me in!! AMAZING!