Door automatically locks

Hello, it sounds like a setting in relation to the door locks. Consult your owners guide to program the vehicle the way you want it to be. If you do not have an owners manual, perform a web search for "2013 Hyundai Elantra owners manual" and you can download one to review. If for some reason there's not a programming issue, then you'll have to seek guidance at a local shop near you. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops