Disconnect the dishwasher's power supply by turning off the breaker in your home's main service panel.
Open the dishwasher door and remove the screws around the perimeter of the inner door panel, which secure the front panel of the dishwasher to the dishwasher door.
Close the dishwasher door and remove the front panel of the dishwasher.
Open the dishwasher door and pull the short seal out of the slot below the inner door panel.
Insert the new short seal into the slot, with the lip facing down.
Close the dishwasher door, and then look at the bottom of the door panel. Ensure that the seal is installed evenly, and adjust as needed.
Reinstall the front panel of the dishwasher door, using the screws that were removed from the inner panel to secure it into position.
Close the dishwasher door and restore the dishwasher's power source by turning on the breaker in your service panel.