Does the back of the seat warms too or just the bottom part? My ls460 the bottom gets real hot but back not so...Thanks

 

in mine lower back does

 

I have only used mine once but it seemed to me like only the bottom was heating up. I could feel a little bit on the very lower part of the back of the chair but I dont know if that was just the heat spreading. Good question though. I live in AZ so its really not something I need. It was 68 degrees on the way home tonight. I know most people around the country are freezing

 

used mine this morn 35 degrees.. cold for orlando.. took a min but felt great.as i'm only 5'7" it reaches about the lower middle of my back. heated steering wheel sounded like a gimmick til today..loved it