BestKeys 2000-2002 Lincoln LS Chipped Transponder Key 2000-2002 Lincoln LS Chipped Transponder Key With Do-It-Yourself Programming Instructions Programming this key requires 2 working unique (not cloned) keys. If you do not have 2 working unique (not cloned) keys, you will need to have the key programmed at a locksmith or dealership. We will provide a link to our website with Free Do-It-Yourself programming instructions with your order.