I would like to know too... My 2005 does almost the same thing... The driver seat heater won't stay on... Passenger seem to work OK, but I haven't tried to turn driver side on when the passenger side is on, because I usually do not have a passenger.
Yup! Mine was the bottom cushion element. Pull the seat and it's an easy fix. I picked up a replacement on Amazoid.If I turn on the driver's side it goes off in about 5 minutes. It will turn off the passenger side also. If only the pass side is on it will stay on. Element problem on the driver's seat? Thanks