Need an amazing truck Maybe a diesle one This 2013 GMC Sierra still has some factory warranty left. has only had one owner and they were from Colorado! This diesel GMC even comes with an exhaust brake!! It features an outlet for a USB hookup. OnStar and will also let you know what the temperature is outsite. Call ahead for location and availability. Equipped with OnStar. try 3 months for FREE! Must see. No accidents. Non-smoker. One owner....