how to program a 3rd smart key 2011 CX 9

scf100

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2011Mazda CX 9
Have been reading some threads on this but no luck...

Can someone point me in right direction?
Have 2 smart keys and got a 3rd off eBay ....same FCC codes etc but no hidden key with it.....

thanks, Stuart
 
Assuming both batteries are fresh in both fobs? Are you trying to program a 3rd aux key or a 3rd smart fob?

Also, are you leaving the aux keys inside the first 2 fobs? I would try separating the aux keys from the fobs. I.E leave the aux keys in you house if programming just a fob. And visa versa leave the fobs inside the house while programming an aux key.
 
Assuming both batteries are fresh in both fobs? Are you trying to program a 3rd aux key or a 3rd smart fob?

Also, are you leaving the aux keys inside the first 2 fobs? I would try separating the aux keys from the fobs. I.E leave the aux keys in you house if programming just a fob. And visa versa leave the fobs inside the house while programming an aux key.

good batteries.....yes aux keys are inside the 2 smart keys when trying to program....not sure why that would make a difference but will try.......don't know if it makes a difference but the 3rd smart key I bought does not have the aux key....
 
Maybe you got a bad fob. Of 2 smartcards I got on ebay, 1 is flawless and 1 works intermittently and was brand new. Therefore that one is my 3rd card. Keep it in a lock box just in case.
 
Hello,

Is there a similar procedure that can be used to program a 3rd smart key on a 2013 CX-9 GT? Thanks,

Bob
 
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