2011 Panamera spare key

[Shawnta]

When I bought my used Panamera, the dealership told me I was lucky, it came with three keys.  Apparently, when the seller traded in the car, he only gave the dealership one key, so they ordered a second since CPO Porsches are always sold with 2 keys.  However, the original owner subsequently found the missing key and turned it over to the dealership.

 

Fast forward months later, I buy the car, and am given all three.  Two of them work, the third does not, even after replacing the battery.  I inspect the physical cut key itself and it does not match the two functioning keys.  I can only assume the owner turned in a key to some other Porsche, although it looks the same as the other two. 

 

My question: can I get this third key "converted" so that it works on my panamera?  I know I'll need to replace the blank inside, but can I then have a dealership program the fob to work on my car?

Edited November 18, 2014 by Shawnta

[bala]

Most dealers won't do it if the key was not for this car. The dealer who sold you might. 150 bucks to program it. But if the dealer gave you the keys then you could request it be made a working one.