Lonsdor K518ISE can program Toyota/Lexus smart key all key lost via OBD by working together with extra SKE-LT Smart Key Emulator . SKE-LT: Smart Key emulator – Toyota/Lexus smart key for all key lost via OBD. Black: SKE-LT-DST40(94/D4) -Supports 94/D4 smart key.(optional) Red: SKE-LT-8A(88/A8)-Support 88/A8 smart key.(optional) Green: SKE-LT-DST80(98)-Supports 98 smart key.(optional) Blue: SKE-LT-8A(A9)-Supports A9 smart key. (optional) If you are interesting in buy SKE-LT Smart Key Emulator for Lonsdor K518ISE Key Programmer , Please check this link : https://www.obd2tool.com/goods-6967-SKE-LT+Smart+Key+Emulator+for+Lonsdor+K518ISE+Key+Programmer.html How to Operate the SKE-LT Smart Key Emulator on all key lost situation: 1) Binding 1. Go to the “Bind emulator key” function; 2. Turn on emulator key and put it into K518ISE key slot (put the status indicator down, make sure the key is active); 3. Following the system direction and click “OK”