2020 GMC Sierra 2500 HD AT4

Call us today to schedule a test drive at 414.228.6200.

Experience legendary Duramax diesel power, premium comfort, and rugged off-road capability with this 2020 GMC Sierra 2500HD AT4 Crew Cab Standard Bed 4WD finished in bold Onyx Black with a Jet Black interior featuring distinctive Kalahari accents and perforated leather-appointed seating. Powered by the impressive 6.6L Duramax Turbo-Diesel V8 engine paired with an Allison 10-speed automatic transmission, this heavy-duty pickup delivers exceptional torque, confident towing capability, and outstanding versatility. Standout features include the AT4 Premium Package, AT4 Preferred Package, Power Sunroof, 20-inch Bright Machined Aluminum Wheels, Heated and Ventilated Front Leather Seats, Heated Rear Outboard Seats, Bose Premium 7-Speaker Audio System, GMC Premium Infotainment System with Navigation, Wireless Phone Charging, Power Sliding Rear Window, Driver Memory Settings, Remote Start, X31 Off-Road Package with Off-Road Suspension, Hill Descent Control and Skid Plates, ProGrade Trailering System, Integrated Trailer Brake Controller, Hitch Guidance with Hitch View, Fifth-Wheel and Gooseneck Trailer Wiring Provisions, Diesel Exhaust Brake, Spray-On Bedliner with AT4 Logo, Off-Road Assist Steps, HD Rear Vision Camera, Front and Rear Park Assist, Lane Change Alert with Side Blind Zone Alert, Rear Cross Traffic Alert, and 120-Volt Bed-Mounted Power Outlet. Whether you're towing heavy equipment, tackling demanding jobs, exploring Wisconsin's backroads, or searching for a premium heavy-duty diesel truck, this 2020 GMC Sierra 2500HD AT4 combines Duramax diesel performance, advanced trailering technology, distinctive AT4 styling, and upscale comfort. Visit www.umanskychevrolet.com to view additional photos, a FREE CARFAX® Vehicle History Report, and our complete inventory. Then stop by Umansky Chevrolet, 1500 W Silver Spring Dr., Milwaukee, WI 53209, or call (414) 228-6200 today to schedule your test drive., 10-Speed Automatic, 4WD, Jet Black w/Kalahari Accents w/Perforated Leather-Appointed Front Seat Trim, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 1st & 2nd Rows All-Weather Floor Liners (LPO), 2 USB Ports, 2 USB Ports (1st Row), 2-Speed Active Transfer Case, 220 Amps Alternator, 2nd Row Dual USB Charge-Only Ports, 3.42 Axle Ratio, 4-Wheel Disc Brakes, 4.2 Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, 6 Speakers, 6-Speaker Audio System Feature, ABS brakes, Air Conditioning, AM/FM radio: SiriusXM, Apple CarPlay/Android Auto, AT4 Preferred Package, AT4 Premium Package, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic temperature control, Bose Premium 7 Speaker Sound System, Brake assist, Bumpers: body-color, Compass, Compass Located In Instrument Cluster, Console-Mounted Safe (LPO), Deep-Tinted Glass, Delay-off headlights, Driver Alert Package I, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Electronic Stability Control, Engine Block Heater, Exhaust Brake, Floor-Mounted Center Console, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front License Plate Kit, Front reading lights, Front wheel independent suspension, Fully automatic headlights, GMC Connected Access Capable, HD Radio, HD Rear Vision Camera, Heated & Ventilated Front Bucket Seats, Heated 2nd Row Outboard Seats, Heated door mirrors, Heated Driver & Front Outboard Passenger Seats, Heated front seats, Heated rear seats, Heated steering wheel, Heavy-Duty 80 Amp Battery, Hill Descent Control, Hitch Guidance w/Hitch View, Illuminated entry, In-Vehicle Trailering System App, Integrat