OK the red light does come on when I press the open and close button and hold it down for say one or two seconds . It looks like to Me its functioning . But doesn't lock and unlock the door . I tried with the key in the ignition in the off position hit the say open button two times then turned the key to the run position and tried to lock or unlock the door nothing happened . I will try again now with a second fob that is supposed to be good ! I just got this one from the seller I forgot to take it when I picked up the Crossfire .