I have a 2004 crew cab LE. I never noticed this before but does anyone know which part of the seat gets heated? Cushion and lumbar both, or one or the other? Mine is the lumbar area only and I thought it needed to be fixed since the cushion was not heating. I called 3 different dealers and 2 said the cushion should be heated only and 1 said the lumbar only. So I'm confused. Can some of you tell me how your heated seats are heating? I really thought both cushion and lumbar should be heated. I'm approaching the end of my extended warranty and I'd like to fix it if possible.