There should be be a 'lock ID card' (from the wheel lock key co. - in my case it is McGard - 3875 California Rd. Orchard Park - NY 14127-4198) Their tel. # is 1-800-444 5847 or 1-716-662 8980. One is supposed to return a registration form to them, so that in the event of the loss of the wheel lock key, they can identify you and send you a new key. This registration form contains numbers that identify the lock combination I assume most if not all the Lexus wheel locks will be sourced from them. Maybe you can give them a call and see what they say? If the issue is the need to change a wheel (undo the lug nuts) now, an earlier post somewhere on the site suggests forcing the wheel lock with a no. ?? socket that you hammer into the lock nut, and wrench it open (.. search it). Obviously, this destroys the lock nut.
Thank for the reply,I will call them thanks very much!!!!