Certified. Onyx Black 2018 GMC Sierra 3500HD 4D Crew Cab SLT 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel CARFAX One-Owner. Heated Seats, Bluetooth® / Hands free Calling, Back Up Camera, Parking Sensors, Remote Start, Apple Carplay/Android Auto, Leather, Loaded, 110-Volt AC Power Outlet, 150 Amps Alternator, 4.2 Diagonal Color Display Driver Info Center, Auto-Dimming Inside Rear-View Mirror, Chrome Bodyside Moldings, Chrome Door Handles, Chrome Power-Adjustable Heated Outside Mirrors, Color-Keyed Carpeted 1st & 2nd Row Floor Mats, Color-Keyed Carpeting Floor Covering, Deep-Tinted Glass, Digital Steering Assist, Driver & Front Passenger Visors, Dual-Zone Automatic Climate Control, Duramax Plus Package, Electric Rear-Window Defogger, Electronic Shift Transfer Case, Exterior Parking Camera Rear, EZ-Lift & Lower Tailgate, Front Halogen Fog Lamps, GMC 4G LTE, Gooseneck/5th Wheel Prep Package, HD Radio, Heated front seats, Leather-Wrapped Steering Wheel, LED Cargo Box Lighting, Manual Tilt-Wheel/Telescoping Steering Column, OnStar & GMC Connected Services Capable, Power Adjustable Pedals, Power Windows, Preferred Equipment Group 4SA, Radio: AM/FM/SiriusXM w/GMC Infotainment & Nav, Rear 60/40 Folding Bench Seat (Folds Up), Remote Keyless Entry, Remote Locking Tailgate, Remote Vehicle Starter System, Single-Slot CD/MP3 Player, Standard Suspension Package, Steering Wheel Audio Controls, Trailering Equipment, Ultrasonic Front & Rear Park Assist, Unauthorized Entry Theft-Deterrent System, Universal Home Remote, Wireless Charging.Certification Program Details: CARBRAVO BENEFITS ?? Courtesy Transportation: Stay on schedule with courtesy transportation1 if your vehicle needs a warranty repair. We'll always make sure you have alternative transportation or reimburse you for a temporary vehicle. ?? 1-month trial2 of OnStar® and Connected Services or OnStar GuardianTM app3: Enjoy OnStar safety services like Automatic Crash Response, Roadside Assistance and the OnStar Guardian app. Plus, stay connected with in-vehicle data and your vehicle's mobile app. ?? 24-Hour Roadside Assistance: If you need us, help is just a phone call away with roadside assistance4 anytime, day or night. ?? 10-day/500-mile exchange: If you don't absolutely love your purchase, bring it on back and exchange it for another one.5 ?? 3-month trial6 of SiriusXM®: 165+ channels in the car plus access to 350+ channels on the SXM App. Enjoy commercial-free music, performances and interviews, plus comedy, talk, sports & more. ?? Multi-point inspection: Enjoy peace of mind knowing that all CarBravo vehicles undergo a rigorous multi-point inspection. Also, before a CarBravo vehicle is listed or sold, dealers complete all safety recalls. You can also double-check the recall status of any vehicle at www.nhtsa.gov/recalls.We use state-of-the-art software to price our vehicles to be the most competitive in the market. If you have found a better value, let us know about it. We would love the opportunity to keep giving the best values in the market. Contact our Sales Department at 517-507-4955 with your questions and to set up an appointment. Be our guest at LaFontaine Buick GMC of Lansing, and put us to work for you. NOTE: All Equipment Listed May Not Be Available.