Needs the help of locksmith

I have my Hyundai Entourage 2007 and i'm having problem with it door locks. My door locks lock and unlock while driving and when pressing the brake pedal, when I turn the car off and try to lock the doors it unlocks. if anyone knows a cheaper way to solve this issue kindly share with me.

Ya need more than a locksmith. Possibly a body control module. Might be dealer time.