1) Excellent replacement: Instead of going to a key maker, locksmith, or car dealership appointment for a key fob replacement. This keyless entry transmitter looks and functions like the original fob on certain vehicle years, makes, models and configurations. 2) Quick and Easy DIY Installation: The replacement key with remote kit offers do-it-yourself pairing. The package includes a installer that plugs into your OBD2 port to setup your new fob in less than 2 minutes, without expensive dealership cost. 3) Compatible with Various Vehicles: This Keyless Entry Remote Control Car Key Fob Replacement Is Compatible with Part Numbers:15913421, 20868672, 20952474, 22759546, 22936098, 5922035 and FCC ID:OUC60270, OUC60221. Key replacement kit is designed to fit Buick, Cadillac, Chevrolet, GMC Pontiac, Saturn, & Suzuki. 4) Matches features: key fob has 4 buttons: Lock, Unlock, Panic and Remote Start Buttons. Only the original functions when vehicle was manufactured will work. This product does not add new functions or features 5) Practical and User-friendly Choice: You can add up to 4 key fobs for a single vehicle. You need one of your original keys to start the engine and install. The installer will be linked to a single vehicle VIN upon use. After this, it cannot be used to add keys for a different vehicle.