2012 GMC Sierra 1500. ATTENTION!!! Your satisfaction is our business! This 2012 Sierra 1500 is for GMC nuts who are hunting for a terrific-looking and gas-saving truck. Accepts alternative fuel source. Consumer Guide calls Sierra surprisingly pleasant and manageable for such large hefty vehicles. 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.