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If you re program it you should be able to fix it. Mine did that once, and a re program fixed it.
Does your other fob do that as well?
It tells you right in the owners manual how to reprogram the fob's. You just stand next to the passengers side door with the doors locked and you press both buttons on the top of the fob at the same time and hold them down and you will hear the doors unlock and then lock again.
If you find that your Fob's are bad, the last 8 digits of the Vin tells the dealer what the codes are for the Fob's. If you find the right codes, I will sell you two brand new Fob's for $100
The reprogramming fee should only be $20 at the dealership.
Thats what I pay for it and so that is what you would probably have to pay for that service, if the BCM needs to be reflashed for the new Fob's.