What You Need To Know: This item is a replacement key fob case only, not a remote key. It does not include interior components such as battery, electronics, or transponder chips. You will need to transfer the internal components from your original remote into this case. No programming required. After Sales Service: Please verify your vehicle and part number information before purchasing. This case is compatible only with the vehicles listed below. Fitment: - 1996-2005 Buick LeSabre 3.8L - 1996-2005 Buick Park Avenue 3.8L - 1996-1999 Buick Riviera 3.8L - 2001-2005 Cadillac DeVille 4.6L - 1998-2002 Cadillac Eldorado 4.6L - 1998-2004 Cadillac Seville 4.6L - 2000-2005 Chevrolet Astro 4.3L - 2002 Chevrolet Blazer 4.2L - 1998-2005 Chevrolet Blazer 4.3L - 2001-2004 Chevrolet Corvette 5.7L - 2003-2007 Chevrolet Express 1500 4.3L Buy with confidence: Each unit is inspected for quality and functionality. FCC: Replace your worn or broken shell case easily. Keyless fob replacement with part numbers: KOBLEAR1XT, 10443537, 25695954, 25695955, 15184352