Anytime you clean an oven, no matter if it cleans itself or not, the first step is to remove the racks and set them aside, preferably in the sink. Depending on what style of oven you have you may have a sliding lock mechanism on the oven which you'll need to lock before cleaning, or you may have an automatically locking oven. Depending on your oven you may have a dial or button for the self cleaning cycle, push the self clean button or turn the dial to the self clean mark, it will either automatically start or you may have to push a button labeled start. You may also have to select how long you wish the cleaning cycle to go, the dirtier it is, the longer it will need to be cleaned. When the cycle is complete the oven will automatically unlock or can be manually unlocked when the elements are black. At that time you will need to use a wet sponge to wipe the ash from the bottom of the oven. Once the racks are clean you may reinsert them and use the oven as normal.
The self-cleaning feature of an oven allows the temperature of the oven to get extremely hot, burning off anything that is stuck inside. This allows you to wipe the over clean easily. Remove the oven racks, press the self cleaning button, and the stove will begin to heat up. Make sure nothing is on top of the stove, and also keep your house ventilated by opening windows.
To use a GE self cleaning oven, first remove the racks from the oven then lock the oven door by sliding the locking mechanism from left to right. Activate the self-clean switch and while it is doing its' job, clean the racks in a warm soapy solution. When the oven has cooled down after cleaning, unlock the oven door and remove the ash residue with a damp cloth. Replace the racks and the oven is ready to use.