Replaced a master key and before I put the chip in the remote I tried to see if it would turn it. Wound up setting off the security system the key wouldn't turn the ignition not even the valet key I was using before. Called Lexus roadside and they had me make sure all doors were shut then lock the driver side door then unlock it then open and close it a total of 3 times then I had to wait about 10 minutes. Luckily it worked it reset the security system lock out.