Compatible with FCC ID: KOBLEAR1XT, P/N: 15042968. Each remote key replacement is pre-tested to ensure quality. This remote key replacement is compatible with Chevy Silverado, Suburban, Tahoe 2001–2002, and Avalanche 2002. Package includes: 2 x for Cadillac / Chevrolet / GMC remote keys. This key fob replacement is compatible with 2001–2002 GMC Sierra, Yukon keyless entry remote. Fits turn-the-key ignition and standard keyless entry systems. Programming instructions are included. The programming process is complex and recommended for users experienced with vehicle key programming. You may search online for instructional videos based on the provided programming guide to program the key yourself. If you are unable to program the key, it is strongly recommended to have a professional locksmith or dealer perform the programming. Before ordering, please verify the compatibility, FCC ID, part number, and physical appearance of this remote key with your 2001–2004 Chevy S10 or GMC Sonoma.