Keyless Entry System Not Working Due to Failed Fob/Entry Receiver on GMC Yukon XL 1500

The keyless entry system may stop working. Our technicians tell us the key fobs and keyless entry receiver may need to be replaced to correct this fault.

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Average mileage: 98,169 (60,000–135,000)
2 model years affected: 2007, 2008
8 people reported this problem
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problem details
If I put the key in the lock or ignition the KRE fob will work. The KRE fob works immedetialty after turning off and exiting the vehicle, but a minute or two later none of them work. I have three fobs and it is the same with all of them. I have an appointment to go into a GMC dealer, but I have been messed around enough on this vehicle. Please, if someone knows of a part we can purchace ourselves and fix it I would rather do that.
fobs stopped working but if tried right after car driven did work, after sitting awhile didnt, took 5 trips to dealer, first said worked, then replaced the fobs twice before admitting there was a service bulletin and more extensive rewiring was done, just glad it was under 3/36,000
Our key fobs only work for a few minutes after exiting the truck. I have heard it may be the receiver. Where is the receiver located?
2007 GMC Yukon XL 1500 93,000 mi,
Keyless Entry Receiver stop working.
2007 GMC Yukon XL 1500 60,000 mi,
The keyless entry fob does not work and hasn't for awhile. Dealer wanted to charge approx $300, holy schmoly!