2020 Gmc Yukon SLT no original key how to program a new one

[chevyguysuburban]

Hi I bought this 2020 GMC Yukon SLT 4 years ago from one of the biggest rental car companies in America but I was given an aftermarket key with no cut out key I want to get a spare fob but how would I program it because I believe you need the cut key to activate the programing setting.

 

[jaxscuby]

the OBD 2 scanners, tec 2 (i think the other name for it), also can program key fobs.
or you could go to dealership and have them cut/program the spare.

 

[Joseph Garcia]

Take the truck and 1 key to your local lock smith. They can do the programming and sell you a fob as well.

 

[chevyguysuburban]

thank you all

 

[Doubeleive]

thank you all

you will need 2 working keys, then you can add more yourself easily. without 2 working keys you will need the dealer or a locksmith to program them initially