2001 01 Lincoln LS Keyless Entry Remote - 4 Button w/ Trunk Release Programming instructions not included. This device requires programming by your local dealer or locksmith. The actual procedure takes a few seconds to complete and many dealerships will do it for free as a courtesy. If your dealer does charge a fee, local locksmiths usually charge much less to remain competitive. 8S4Z15K601A 8S-4Z-15K-601A