The keys have a chip inside. This ignition switch comes with 2 keys that contain a 48 chip. The chip must match the vehicle's engine computer to start the car. Professional programming is required for the chip to function properly. To program the key: - If you have the original key, a local locksmith can duplicate the key and program the chip to match the original. - If you do not have the original key, a locksmith can use a programming device connected to the OBD2 port to program the vehicle to accept the new key. Part Number: 35100-SDA-A71 Compatibility: - Honda Accord 20032007 (excludes 20032005 2-Door models) - Honda Element 20032011 - Does not fit manual transmission models Important Notice Chip Information by Model Year: - Accord 20032005: 48 chip - Accord 20062007: 8E chip - Accord 20082011: 46 Electronic chip - Accord 20142016: 46 Electronic chip Color: Silver + Black Material: Metal Package Contents: 1 x Ignition Switch Lock Cylinder 2 x Keys with 48 chip Note: Light and display differences may cause slight color variation between the product image and actual item. Measurement may vary by +/- 13 cm.