Open the door to your GE dishwasher and remove the bottom rack by pulling it all the way out of the unit.
Place a level tool on the open door and on one of the bottom rack tracks to test the leveling of the dishwasher.
Move your dishwasher slightly out of the area below the kitchen countertop.
Turn the four adjusting legs using an adjustable wrench to move the legs up or down.
Adjust the legs so the level tool indicators are centered. Slide the dishwasher back into place.
Close the dishwasher door and make sure the door shuts properly. The dishwasher will be fully leveled.