I can't keep mine on the highest setting for more than a couple minutes. I'd end up with burnt ass or swamp ass.LOL glad I am not the only one with complaints on the seat heater. I think it is all seats with heat/cooling. My brother has an 18 F150 with just heated seats and they are so hot I couldn't believe it. My 15 GMC with cooled/heated sucked too but I had an 08 previously with heat only and those got toasty hot.