Replace the entire gauge cluster, you can do this yourself and quite easily. The problem comes with getting the mileage corrected on the new cluster. Some cars store that in the gauge cluster itself, so it has to be programmed by a special tool (the dealer should be able to do this). Other cars store it in the ECU and you can swap gauge clusters at will. Not sure which the FJ is.Repair advice?
Did you get a part number? Here's a gauge cluster on EBay for $125. I would get the part number and search around though, that one says it's for a 4x2 FJ so make sure you get the right one (no idea if there's a difference).Toyota Dealer Service says $600 parts & labor for replacement. UGGGGH