All four doors n lift door in the back don't open with the button on the key panel to set off alarm n open m lock . Same thing with the inside of the car to unlock n lock it does not work. You can hear the switch work it just does nothing it stared with one n now all off them. We had the after market security system remove along time ago by the dealership do to not working. So it's not that. The dealership said its a $50 part per door but would not tell me what part so I can have my friend do it because it was going to be over 3gran to fix with labor. Can you help I go to school at night n have four kids that I want to get in n out of the car