Modern microwave ovens are equipped with automated electronic controls that allow users to push a single button for cooking a bowl of popcorn, reheating a slice of pizza, heating up a baked potato, or simply rewarming the morning coffee. But those controls might be dangerous if operated by a preschooler, and that's why GE has built a child lock-out function into their advanced microwaves. Easy for a grownup to both lock and unlock, the safety feature ensures that a GE microwave oven is not started accidentally by a child.

Stainless steel microwave oven on white
credit: Ryan McVay/Photodisc/Getty Images

Step 1

Press and hold the "Clear/Off" button on your microwave oven's keypad for about three seconds.

Step 2

Wait for the "L," which indicates the microwave is locked, to disappear from the display.

Step 3

Open the microwave using the open latch button.