Can you describe the seat heater problems. I think the rear window defroster is pretty self-explanatory, it's just doesn't clear the rear window correct? Or did it take an excessive amount of time to defrost the rear window? I think my car may be experiencing the same problems, the driver's seat doesn't heat up and I have waited at least 15-20 minutes. It should heat up by then, correct? And the rear window doesn't defrost, I mean I push the button and it lights up and after about 30 minutes it goes off and the frost/condensation doesn't clear. Thanks for your help -