01 Tahoe key fobs won’t program!

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Tahoe88

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I have an 01 Tahoe that had 1 key fob that worked fine. I wanted an additional one for my wife so we ordered a new one. I followed the programming instructions exactly. Now neither remote works and neither would successfully program. The truck enters programming mode every time I try but the remotes themselves will not work. So the old and new both don’t work and I have to use the key now. What could be the issue? Yes I’m doing the program procedure correctly.
 

Big Mama

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Welcome to the forum from Virginia. Not sure if they’re the same but my dad’s 06 Sierra does the same thing. I tried dozens of time so if you solve it please share.
 

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When my Hoe first came into the family it had one OE remote, with a #1 on the back of the case. I bought two aftermarket remotes online and attempted to program all three, but the OE one wouldn't program; the two aftermarket ones did. I tried programming them in different order, but I could never get the OE one to program.
 
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Tahoe88

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the one mine came with was a red replacement fob. I didn’t get any of the originals. But it worked fine. Now that I tried programming a new one, neither will work


When my Hoe first came into the family it had one OE remote, with a #1 on the back of the case. I bought two aftermarket remotes online and attempted to program all three, but the OE one wouldn't program; the two aftermarket ones did. I tried programming them in different order, but I could never get the OE one to program.
 

OR VietVet

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I had a 2002 Tahoe and went to Amazon to order 2 extra fobs. I did use the original fob and one of the new fobs and followed the steps in the pic I am posting and both fobs worked fine. I still have the new extra fob and plan to program them all to work. I know that when you do the new fob you have to do all steps for the new and existing fobs at the same time. Hopefully the pics help and I ordered the new fobs off of the numbers on the back of the original fob.

20201223_115842.jpg 20201223_120022.jpg 20201223_120033.jpg
 

mattbta

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I had a 2002 Tahoe and went to Amazon to order 2 extra fobs. I did use the original fob and one of the new fobs and followed the steps in the pic I am posting and both fobs worked fine. I still have the new extra fob and plan to program them all to work. I know that when you do the new fob you have to do all steps for the new and existing fobs at the same time. Hopefully the pics help and I ordered the new fobs off of the numbers on the back of the original fob.

View attachment 265772 View attachment 265773 View attachment 265774
Same process I just followed to link my Boost Auto Parts 2015 fobs for my NBS. It did seem to take quite a long time holding the buttons down on the fobs before the truck responded but all good.
 

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Same exact process I used, but the OE FOB wouldn't program. One of these days I may try it again.
 
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Tahoe88

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I appreciate your response, but as I stated, I did that exact process numerous times. The truck enters programming mode but that’s it. The remotes don’t respond. I’ve held the lock and unlock buttons for up to 5 minutes on each fob and nothing ever happens. The remote I had worked fine I just wanted a 2nd one for my wife. Now neither the old or new one work.

I had a 2002 Tahoe and went to Amazon to order 2 extra fobs. I did use the original fob and one of the new fobs and followed the steps in the pic I am posting and both fobs worked fine. I still have the new extra fob and plan to program them all to work. I know that when you do the new fob you have to do all steps for the new and existing fobs at the same time. Hopefully the pics help and I ordered the new fobs off of the numbers on the back of the original fob.

View attachment 265772 View attachment 265773 View attachment 265774
 

OR VietVet

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Almost forgot: Welcome to the forum from Oregon

In answer to your concern. You may have a problem with the BCM or the circuits with that. Check ALL fuses and while I would say make sure the fobs batteries are in good shape, I would assume it is not that since neither will program but I do hate to assume. I get that the steps I supplied are the same but I did not know that and that is why I supplied them. I also checked at the web site and the steps for a 2001 and a 2005, my rig, are the same.
 
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Tahoe88

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I still have to check fuses but when I looked the other night I didn’t see any BCM fuses, only the ecm. I wasn’t able to pull it with the high quality fuse puller provided and my tools weren’t on hand. I also thought, based on some other posts I’ve read through, that a sign of the bcm being bad was that the vehicle wouldn’t enter programming at all and confirming with the lock/unlock cycle. Mine does enter programming and the locks cycle once the unlock button is released on the door after executing the procedure. Are there any other procedures to verify a bad bcm? Any links where I could purchase one? I appreciate the help and the welcome! Thank you from NJ

Almost forgot: Welcome to the forum from Oregon

In answer to your concern. You may have a problem with the BCM or the circuits with that. Check ALL fuses and while I would say make sure the fobs batteries are in good shape, I would assume it is not that since neither will program but I do hate to assume. I get that the steps I supplied are the same but I did not know that and that is why I supplied them. I also checked at the web site and the steps for a 2001 and a 2005, my rig, are the same.
 

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