I went to get my back left tire replaced today, only to find out that I have a lug nut lock on the wheel. I have the All-Star package with the 20 inch wheels. I was wondering where exactly is this key to the locking lug located. I called my local dealer just to see if I could get another one just in case. They told me GM uses 20 different lug lock styles. He also told me it would be $30-50 for a key.