Can I make a Master Key from Valet Key? Options

[skaufmann]

I only have the original Valet key that turns the ignition. I have a 2nd key (Master) that opens the passenger door (and nothing else) and a 3rd key (Valet) that open the driver door (and nothing else).

From what I can gather, the only difference between the master key and the valet key is the channeling down the side of the key, not the notch/tooth profile. If I'm correct, can I make a copy of the original Valet key to a new Master key?

My thought is it's easier to rekey the door locks and I suspect the new Master will then work the trunk and glove box since those were not likely replaced like the door locks were.

[doug_b_928]

My car only came with a valet key. Reading on the classic thread, it seems the only difference is the valet key has an additional slot running the length of the key (that interacts with the 'valet wafer' so that it won't unlock locks that are so equipped). So, if I order a new master (black) blank and have a locksmith simply copy the profile of the valet key onto it, will the new master work in the locks for the glovebox and frunk (assuming, of course, that no one ever messed with them and that they're functional).