Need a new key fob? This DIY keyless remote is designed to match the appearance and function of the original on specific vehicle years, makes, models and configurations. With easy-to-follow instructions, you can program it yourself in minutes, and rely on it for years. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Buick Rainier: 2004, 2005, 2006, 2007] - [Chevrolet Trailblazer EXT: 2002, 2003, 2004, 2005, 2006] - [Chevrolet Trailblazer: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009] - [GMC Envoy XL: 2002, 2003, 2004, 2005, 2006] - [GMC Envoy: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009] - [Oldsmobile Bravada: 2002, 2003, 2004]