Remote Keyless Entry on 2007 Buick Lucerne

Mt remote door/trunk FOB will n ot unlock the door/trunk after the doors have beenclosed for a couple of minutes. If I unlock the door manually and open it, then the FOB will work fine. What could be causing thsi problem?

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1 answer 1 comment
did you get an answer yet? I have the exact same problem and have replaced the batteries a couple of times and it doesn't help at all. its almost like it times out after a few seconds.
I unplugged the reciever for s few minutes plugged it back in and it worked fine. Has been working ever since