Discover the rugged capability and refined comfort of this 2012 GMC Sierra 1500 SLE. Boasting a powerful Vortec 5.3L V8 engine, this Sierra delivers impressive performance and efficiency, with 15 city/21 highway MPG.- 5.3L V8 Flex Fuel engine with Active Fuel Management- Convenience Package with power-adjustable pedals, remote start, and rear parking assist- Power Tech Package including dual-zone climate control, Bluetooth, and steering wheel audio controls- Heavy-Duty Trailering Package for enh