Replaces 200+ factory original remotes for vehicles made by 21 car manufacturers from Buick to Volkswagen. Designed to work with factory-installed keyless entry systems. Works like a universal TV remote, but it's made for cars. Functions exactly like a vehicle's original factory remote, unlocking and locking doors, popping open the trunk, and other functions. Do-it-yourself setup is simple, fast, and uses no tools. This tough, water-resistant remote provides inexpensive, reliable, and easy-to-use access to your car's remote entry system. Backed by a 3-year limited warranty. For the first time ever, you can replace remotes using a single device.