I have a 2016 Scion iM. Generally love this car. I mainly drive it from Toronto to Miami a couple of times a year. My brother, a 6'6" behemoth borrows my car often. So he lowers the seat to its lowest level. I need it at the highest level. It used to take 13 pumps to raise the seat. Lately that number is increasing and now takes about 35 pumps to raise the seat. Anyone have any idea why this is happening?