What Was New for 2017?
The Sierra received extensive cosmetic updates in 2016, so there were only minor changes in 2017. General Motors’ Teen Driver system became standard across the range, allowing parents to monitor the speed and location of the truck, as well as muting the radio until all occupants are buckled up. Also standard across the Sierra lineup were a capless fuel filler and new automatic shutters behind the grille, which automatically close to smooth airflow over the front end of the truck and improve fuel economy on the highway. Clever running boards were added to the list of available accessories; they power out for easy entry into the cabin and can motor rearward for quick access to the bed. Lastly, two new colors were added to the Sierra palette: Pepperdust and the magnificent Dark Slate.
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