CARFAX One-Owner. The 2018 GMC Sierra 1500 SLT 4WD is a pickup that blends refined comfort with proven capability. Under the hood, it delivers strong, dependable performance, while the 4WD system gives you the confidence to tackle tough weather, job sites, or weekend adventures without hesitation. The SLT trim surrounds you with upscale touches like premium materials, a quiet, well-crafted cabin, and advanced technology that keeps you connected and in control. Whether youre towing, hauling, or just enjoying the drive, this Sierra offers a smooth, composed ride with the strength you expect from a full-size truck. Its the perfect balance of rugged durability and everyday luxury, ready to handle work and life with equal ease.. This vehicle is covered by Fords BLUE Certified Program and includes a 90-Day/4,000-Mile Comprehensive Warranty, 4-Day Vehicle Exchange Program, 24-Hour Roadside Assistance, Local Home Delivery, and much more! Price excludes tax, title & license.