Hello, I've had my G37 for a couple of years. Wil probably need new break pads pretty soon. My mechanic told me today that I'm missing the lug nut socket which screws onto one of the bolts for wheel theft prevention. Says there are thousands of different configurations and couldn't tell me where I can have it replaced. He thinks it may be an aftermarket product saying Infiniti never installed these on new cars. Any suggestions? I'm calling Infiniti tomorrow just in cast my mechanic is misinformed. Thank you

 

Got a pic by chance?

 

Ask any teenager to take it off.

There are tons of YouTube videos that show how.
Basically, get a long socket just slightly larger than the locknut. Pound it on with a hammer. Then remove the lugnut with a long handle ratchet or breaker bar.
Then put a rod in the square drive hole in the socket and pound out the locknut. Repeat.
Takes 3minutes per wheel.

Use a very tightly fitting impact socket, one that won't fit on by hand. a cheap chrome socket may crack.

And if your Mech doesn't already know this, you may want to find another shop,