JAB57

I had the same problem on my 96 lx450. I unbolted the seat from the floor (quite a simple task) and flipped it over for a look. It turned out that a plastic cap that is located on the end of the plastic tube that runs the width of the seat had become unscrewed and fallen off into the floor board. The cap is slightly smaller than a thimble. I screwed it back on and and everything operated normally.

If this does not fix it, having the seat out gives you the opportunity to have a look and see if everything is operating normally. Check the wiring harness too, as it may not be making good contact.

Good luck.

same thing happened to me. I removed the plug from the drivers side (since it faces the door) and put into the passenger side. It works fine. Now I need another one to replace the drivers side. I looked all over the underneath of seat around carpet and vent and could not find the white plug. Where is easiest place to get this.....Dealer.??

I have a small white plug that popped out when moving my seat front or back. It appears to screw in but is now stripped out and the seat will not move. has any one been sucessful getting the seat to move again? I can hear the motor hum and click if i hold the button.

I also lost this plug. The seat would not move. I removed the plug from the drivers side and put it in the passenger side and it worked fine. Now I need another plug. I have called the lexus dealer and parts guy said to come by and show him what I was talking about. I will let you know if I can buy just the white plug.