2nd Gen Key Fob to 3rd Gen Key UPGRADE
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2008-2013 Cadillac CTS Appearance Mods Discussion, 2nd Gen Key Fob to 3rd Gen Key UPGRADE in Cadillac CTS Second Generation Forum - 2008-2013; Hey Everyone, I was wondering if it's possible to upgrade my 2012 CTS Coupe Key Fob to a 3rd Gen ...
  1. #1
    joerivello424 is offline Cadillac Owners Member
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    2nd Gen Key Fob to 3rd Gen Key UPGRADE

    Hey Everyone,

    I was wondering if it's possible to upgrade my 2012 CTS Coupe Key Fob to a 3rd Gen Key Fob. I've heard it's been done, but wanted to hear from others to see if anyone on here has done it or has any pointers. I attached some pictures below of mine and what I want to upgrade to. They have the same buttons and everything
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  3. #2
    Mullah88's Avatar
    Mullah88 is offline Cadillac Owners Connoisseur
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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    If you have a wagon, the liftgate option will not work

    Sent from my SM-N920T using Tapatalk

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    jayoldschool's Avatar
    jayoldschool is offline Super Moderator
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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    I have a sedan key fob as my #2 for my wagon. Programmed is with my Snap On scanner. When I push the trunk button, the hatch opens.

    Joe, any shop with a good scanner can try and pair that fob for you. If you want to send one to me to try it, PM me and I'll do it.

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  5. #4
    Mullah88's Avatar
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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    Quote Originally Posted by jayoldschool View Post
    I have a sedan key fob as my #2 for my wagon. Programmed is with my Snap On scanner. When I push the trunk button, the hatch opens.

    Joe, any shop with a good scanner can try and pair that fob for you. If you want to send one to me to try it, PM me and I'll do it.

    Thats a gen 2 fob right? Yes that'll work because I also have a sedan fob for my wagon (fob i used for the 06 sts). I programmed mine without a scanner, the hatch does not open using the sedan fob.

    Also our gen 2, you hold to open, the gen 3 you'll have to press twice

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    joerivello424 is offline Cadillac Owners Member
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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    I appreciate all the help. You guys are much more helpful than the "CTS-V Owners" Forum. Sheesh a lot of those guys are condescending as f***. Anyway, I'm glad it can be done!

    So Yes, I have a Gen-2 Fob. I has remote start, and has the perimeter unlocking so basically if I have the key close to my car I can just grab the door handle. Will everything just transfer over to the Gen-3 key??

  7. #6
    joerivello424 is offline Cadillac Owners Member
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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    Another note, my Gen-2 Key doesn't have a physical "key port". All it needs is to be in the vicinity of my car to be able to unlock and turn over. Will this cause any problems?

  8. #7
    joerivello424 is offline Cadillac Owners Member
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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    Hey I can't PM you. Can you PM me?

  9. #8
    Long's Avatar
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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    Quote Originally Posted by joerivello424 View Post
    Hey I can't PM you. Can you PM me?
    Try to PM now...

  10. #9
    joerivello424 is offline Cadillac Owners Member
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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    Quote Originally Posted by Long View Post
    Try to PM now...
    Thank you!

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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    I’d be interested in how this turns out. The newer style fob looks so much better IMO. I have access to a Tech2 as well as a Matco scanner, so I’d just have to get a fob but don’t really want to spend the cash on a new fob just to find out it doesn’t work. Let us know how it turns out!


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  12. #11
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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    same here...I wasn't aware that anyone got one of the newer style remote fobs to work...

    Bill

  13. #12
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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    I don't know if they even operate on the same frequency, or if the RCDLR in our vehicles would be able to understand signals from a newer style fob. I would assume that everything would be the same...
    silversport likes this.

  14. #13
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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    My Autmel TPMS tool can also read fobs. It won't pair them, but it should be able to figure out if the frequency is the same. I've never used this feature, but it may be an option for someone that has a TPMS tool and no scanner to help figure it out.

    Don't forget, there is a procedure in the owner's manual to pair a new/used fob with your car. Order a Gen3 fob, try that pairing method. Worst case, you resell the fob. Amazon and ebay will be good choices for buying/selling.
    silversport and AndyT3 like this.

  15. #14
    AndyT3's Avatar
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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    Will the gen 3 fob fit in the programming pocket in the center console of our cars? The gen 3 fobs are a bit fatter than the gen 2 fobs.


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  16. #15
    Long's Avatar
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    Re: 2nd Gen Key Fob to 3rd Gen Key UPGRADE

    Quote Originally Posted by AndyT3 View Post
    Will the gen 3 fob fit in the programming pocket in the center console of our cars? The gen 3 fobs are a bit fatter than the gen 2 fobs.
    Excellent point to bring up.
    Even if you could get the Gen III fob programmed to work, running into a scenario where you need to put the fob in the console receptacle to assist starting the car may leave you stranded.
    silversport likes this.

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