Hi,Welcome to Just Answer, My name isXXXXX will be helping you with your appliance issue today.
Are you talking about the oven pilot? If so this doesn't have a pilot it has an electronic igniter,
let me know thanks, Bryan
Well you can replace the igniter yourself, it's not too difficult to do, you can order it online or pick it up at a local warehouse if you have one nearby, there are just two wires to it and two screws holding it in, you have to remove the bottom plate inside the oven there are usually two screws at the back inside the oven you remove and lifted up from the back and slide it out from under the front the igniter will be there underneath that, if you wish to order this online here is a link to do so.
http://www.repairclinic.com/PartDetail/Hot-Surface-Glow-Bar-Igniter/3377?modelNumber=MGR5770BDQ it runs around $42, thanks, Bryan