Buy 2006 Lexus IS 250 Seat Lumbar Switch (Right, Front). Power Lumbar Switch - Repair or Replace If Culprit - OEM Lexus Part # 8492030240A0 (84920-30240-A0, 8492030240A4)

FRONT POWER SEAT(FOR LUMBAR); POWER SEAT FRONT, RIGHT. IVORY

SWITCH ASSY, POWER SEAT FRONT, RH SWITCH, FRONT POWER SEAT(FOR LUMBAR)

Fits ES 350, GS 300, GS 350, GS 430, GS 460, IS 250, IS 350

Power Lumbar Switch - Repair or Replace
If your power lumbar doesn't move, your power lumbar switch may be the culprit. Have a technician inspect your 2006 Lexus IS 250 to see if your the switch needs to be replaced.