2010 GMC Sierra 1500. Flex Fuel! 4X4! This good-looking 2010 GMC Sierra 1500 is the rare family vehicle you have been hunting for. This terrific GMC is one of the most sought after used vehicles on the market because it NEVER lets owners down. J.D. Power and Associates gave the 2010 Sierra 1500 5 out of 5 Power Circles for Overall Initial Quality. Ask about our preowned superstore one year maintenance lifetime inspections with every preowned vehicle purchased. Prices only good for day they appear. All prices are subject to change. We cannot extend special Internet pricing without a printed copy of the online pricing the in-store price may exceed our special online pricing.