Had a flat on my 2004 LS 430 & had to replace the tire. My low tire warning light/message came on & even after we had replaced all 4 tires we can't get the light/message to go off. The owner's manual said once we aired the tire up or replaced the tire after a few miles of driving the light would go off. Have driven several hundred miles & it's still on. My husband tried the other methods suggested but to no avail. Any help would be greatly appreciated. Thanks! Susan