[ravenuer]

The "key" is actually a special socket that comes with the locking lug nuts. Do you have these locking lugs on your 4 other wheels? If at all possible, can you contact the previous owner to see if maybe they forgot to give the socket to you?
When I bought my set of locks, they came with a postcard to register with the company to get a replacement socket. Not sure what you can do if you can't get that socket.
One more thought: I keep the socket in my glove box. Have you looked in there?

 

[ravenuer]

I assumed RLS meant a lug nut that can only be turned with a special matching socket. Let's see if he can clear that up for us.

 

[ravenuer]

"....what I got...."

Does that mean it came with the vehicle or that is what you purchased to use for your vehicle?

I'd say he probably bought it on his own.

 

[ravenuer]

Agreed, the dealer can't help. They said the main ignition/central locking key should open it. The manual specifically states that this key will not open it. I'll find a drill.
........and a new dealer.