Shop 2021 GMC Sierra 1500 SLT vehicles in Pecan Acres, TX for sale at Cars.com. Research, compare, and save listings, or contact sellers directly from 6 2021 Sierra 1500 models in Pecan Acres, TX.

The Sierra 1500 Pro trim, GMC’s entry-level offering, saw the biggest price increase, rising from $31,295 in 2021 to $40,495 in 2025, a 22.7-percent uptick overall.