Buy 2012 Toyota Tundra 4.0L V6 A/T RWD Base Extended Cab Pickup Fleetside Seat Lumbar Switch. PASSENGER Power, Gray, Right - OEM Toyota Part # 849200E020B1 (84920-0E020-B1)

Switch. Lumbar. Seat. Assembly, Power S.
Switch used for the adjustment of the Seat Lumbar. Included with: Seat Assembly, Seat Assembly Order by description.

Seat Lumbar Switch

Fits Avalon, Sequoia, Tundra

PASSENGER SEAT, 2005-08, charcoal. PASSENGER SEAT, 2009-10, graphite. Tundra; Lumbar Control; Right; Gray. W/BUCKET SEAT, W/POWER, gray. W/O POWER, gray. W/POWER, 2008-17, gray. W/POWER, 2018-22, gray.
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 2012 Toyota Tundra to see if your the switch needs to be replaced.