How do I set Rebel T5 back to factory settings.

[MaryLouDavis]

I saw an answer someplace on here that said it was under Menu tab 3.  I can't it there.  I recently bought this camera on QVC and it never did take a picture in low level light on the A setting.  I tried to set something in the M mode.  I think someone had this camera before me and they sent it on to me.  I want to reset it back to the factory setting for the Automatic mode.  Someone please answer or I have to send it back.  My friend bought one too and hers took A pictures right after she installed the batteries.

[MaryLouDavis]

Yes, thank you I did get that set back....and how it got set up to 8 sec....I don't know.  I want to try some timed setting sometime so I have familiared myself with that feature.  I know I will love this camera if I learn more about it.  I really apprciate your time in helping me.