US bound 80 Series Land Cruisers never came with the Center Diff Lock Switch even though the harness and plug is in the dash rear to plug one in. Adding this button gives you the ability to manually control the center diff. But doing the additional pin-7 mod will also let you choose between locking in 4WD-LO or 4WD-HI. This switch can EASILY be a repurposed emergency switch or other dash switch but this one has the specific graphics ready to go.
For more info: https://sleeoffroad.com/center-differential-lock-pin-7-mod/
