Drivers side seat not working properly

use a meter and test the switch and motor

Did you try scrap yard?I bought for $50 seat.

Remove the seat from the floor and re-connect the cable that drives the seat from the end of the motor. If cable is broken, replace it.

remove seat(s) and check for obstruction in the mechanism path. You'll need a big Torx bit.

You must remove the motor, move the seat to the desired position and then reinstall the motor to lock the seat in the position.

I have G35 coupe and it's on a recline position. The car seat won't come up?

The control switch has developed a problem (intermittent contact or just broke inside) Replace the switch. That should fix it.

Because that switch is broken and stuck in the recline mode.

The seat position is changed through the use of a cable that runs through a flexible tunnel, under the seat. In one case that I'm aware of, this cable got stuck around a projecting seat spring under the seat. When the seat was reclined and moved backward or forward, the cable caught on the seat spring and the seat had insufficient slack in the cable to release from the reclined position.

check the adjusting bar on the pass. door side of seat.