After re installing a new traction battery I found the long lost button. Since I bought the car in 08 I could figure out how to fold down the back seats. Only one button was showing. I found the other one but it was under the upholstery.....i'm curious if this is a design flaw or maybe the seat has been upholstered
It is definitely visible normally. If your button was covered over, then you probably have car-seat covers installed.