Vic Patel 
2004 Toyota Highlander SUV Fwd 4dr SUV w/3rd Row (3.3L 6cyl 5A)
Tires  humming
 I bought this vehicle used. No problem for a first couple of months. Even at 125,000 miles, the only problem is tires. I bought all four tires brand new. After about 20,000 miles on the tires they started to hum at speeds of 40 and up. The faster you go the more annoying the humming sound gets. I have had checked the front end alignment, and the tires seem to have worn evenly. Still I do not know what the problem is.