(July 16, 2015) DETROIT— GMC’s best-selling truck has great momentum coming off its best June since 2006 and 12 consecutive months of year-over-year sales gains.

With exterior styling as its top reason for purchase, the new truck adds key design elements: LED “C-shaped” signature daytime running lights and LED headlights; new front fascia and grilles for each trim level; new LED fog lamps; new bumpers; and new “C-shaped” LED taillights.

The new Sierra will be available in the fourth quarter of this year, with additional details and information on the new model released in the coming months.