Programming a Key fob for a 2021

[DkLong]

I just bought a 2021 silverado which had only one key fob. I bought 2 new ones and can not get them to program.  I have watched several youtube videos on how to program new key fobs. When I try the first step and put the key in the drivers door and turn it 5 times to the left, the display does not acknowledge anything. 

Anyone have any ideas?

[gemarsh]

42 minutes ago, DkLong said:

I just bought a 2021 silverado which had only one key fob. I bought 2 new ones and can not get them to program.  I have watched several youtube videos on how to program new key fobs. When I try the first step and put the key in the drivers door and turn it 5 times to the left, the display does not acknowledge anything. 

Anyone have any ideas?

 

Are you in Canada? 

[silveradosid]

depend on your rpo codes, if you have the ath rpo code then it can only be with sps. discovered this with our 2021 denali

Edited December 25, 2023 by silveradosid

[DkLong]

No, I am in Alabama

[carkhz316]

Regardless if you have a keyed ignition, or push button start, if you have only ONE working key/ fob then you need a subscription/ access to Techline Connect OR take it the dealer or shop (capable of dealer-level programming) to program a new key/ fob to the truck. It takes about 20 minutes and involves a few prompts and button pushes if you're doing it yourself. I had to do this on my '21 since I bought it CPO and it only came with one push button start fob. If you have TWO working keys/ fobs already, then you can easily add a third by just doing the quick ignition cycling procedure.

[DkLong]

Thank you very much for the info.

I can take it to the dealer.