* EPA estimated 15 city/21 hwy mpg with 5.3L V8 engine. Based on 2009 GM Large Pickup Segment.
** Based on 2009 GM Large Pickup segment. Excludes other GM vehicles. EPA-est hwy: Sierra XFE 22 mpg, Sierra Hybrid 22 mpg, Sierra 1500 with 5.3L V8 21 mpg.
*** Five-star rating is for the driver and front passenger seating positions in the frontal crash test and for the front and rear seating positions in the side-impact crash test. Side-impact crash test rating is for models tested with and without optional Head Curtain side-impact air bags (SABs). Government star ratings are part of the National Highway Traffic Safety Administration's (NHTSA's) New Car Assessment Program (www.safercar.gov).