 There are trucks, and then there's the truck, GMC Sierra. Not just any truck, the truck. Well-qualified buyers get 1.9% APR for 36 months on GMC Sierra light-duty models. See your Northwest GMC dealer. Monthly payment is $28.16 for every $1,000 you finance. Average example down payment, 15.0%. Some customers will not qualify. Not available with lease and some other offers. Take new retail delivery by 731.24.