Well I have an interesting question. I just went to verify that my main aftermarket key is in fact a master key transponder by doing the security light test. Sure enough, the security light turns off immediately as I insert my main key. I went to do the same test with my grey oem Lexus "valet" key and I was shocked when it too turns off the security light when inserted. How could this be? While doing all this, I also came to the unfortunate realization that the lock on my glove box is broken.. I can visually see that the lock itself is broken, I had just never needed to try and look it for anything, so I was unaware. Another important point is that both keys work perfectly for the door locks as well as the ignition, but my main "master" key is the only one that opens the trunk. My grey oem Lexus key, that I am referring to as my "valet"key, does not open the trunk, this is another reason why I am so confused that it turns off the security light when inserted in the ignition. What is going on here? Please help, I am literally just looking to have a spare key/clicker fob for the keyless entry that can also open the trunk. Do I just need to send pics of my "master" key? It is just like the Lexus oem key, but aftermarket with no Lexus badge, it appeared to be brand new when I got my is a year ago. I am just super confused as to why both of my keys had the same results with the security light test, yet only the main one with the fob opens the trunk. I am almost certain my grey regular Lexus key is a valet because it does not open the trunk, but why does it turn off the security light??