Fob not working on unlock after doing all that dealer said to do to re-program

UlindaUlinda Member Posts: 2
edited March 2016 in GMC
I have changed battery, taken fob apart and cleaned connections with rubbing alcohol, reprogrammed the fob. The fob will not verify when I hold down the lock and unlock at the same time over 30 secs. The dealer tech could not make it work. SO... is their any other thing to try before a 400.00 fix to replace the module??
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