Onyx Black 2026 GMC Sierra 1500 AT4 4WD 10-Speed Automatic 3.0L I6 Must See, Four Complimentary Oil Change and Tire Rotation, Complimentary 12 Month Collision Deductible Waiver (up to $500), Sierra 1500 AT4, 4D Crew Cab, 3.0L I6, 10-Speed Automatic, 4WD, Onyx Black, Jet Black With Kalahari Accents Leather, AT4 Preferred Package, AT4 Premium Package, Bed View Camera, Hitch Guidance, Multicolor 15' Diagonal Head-Up Display, Off-Road High Clearance Step (LPO), Power Sliding Rear Window w/Rear Defogger, Rear Camera Mirror, Technology Package, Trailering Package, Universal Home Remote. Holm Automotive is committed to providing our customers with a transparent, stress-free shopping experience. That is why we have been rated the 1 Buick and GMC Dealership in Kansas on Cars.com. While we strive to ensure highly accurate mileage and pricing of all our vehicles, occasional fluctuations may occur due to servicing, transportation, or customer test drives. Please confirm any details with our sales team. Sales tax and title fees are not included in the advertised price. Recent Arrival! All vehicles sold by Holm Buick GMC and Holm Automotive Center include two years complimentary maintenance to keep your new ride in top running condition!