Used 2025 GMC Sierra HD for sale in Boulder

Seller description

Experience the ultimate in power, capability, and style with the 2025 GMC Sierra 2500HD AT4. This impressive heavy-duty pickup is engineered to conquer any terrain, whether you're tackling off-road adventures or hauling heavy loads. - Power-Retractable Black Assist Steps with LED Lighting - Volcanic Red Tintcoat Exterior - Duramax 6.6L V8 Turbodiesel Engine with 470 hp and 975 lb-ft of torque - Dual 220-Amp Primary and 170-Amp Auxiliary Alternators - Gooseneck/5th Wheel Prep Package - AT4 Premium Plus Package with Power Sunroof, Technology Package, and High Clearance Step The Sierra 2500HD AT4 is built to handle the toughest jobs with ease. Its Duramax diesel engine delivers incredible power and torque, while the 10-speed automatic transmission and 4WD system ensure smooth, confident performance on any terrain. The off-road-tuned suspension and high-clearance steps provide the capability you need to tackle the most challenging conditions. Inside, the Sierra 2500HD AT4 pampers you with premium features, including a Bose premium sound system, heated and ventilated front seats, and a 15-inch head-up display. The spacious cabin offers ample room for passengers and cargo, and the available in-vehicle trailering system makes hauling your toys a breeze. Safety is also a top priority, with advanced features like Automatic Emergency Braking, Forward Collision Alert, and Lane Departure Warning keeping you and your loved ones protected on the road. Whether you're tackling tough jobs or embarking on epic adventures, the 2025 GMC Sierra 2500HD AT4 is the ultimate heavy-duty pickup. Experience the power, capability, and premium features that make this truck a true standout in its class. Serving drivers near Denver, Aurora, Littleton, Lakewood, Boulder, and surrounding Colorado areas.AT4 Preferred Package,AT4 Premium Plus Package,Gooseneck/5th Wheel Prep Package,Preferred Equipment Group 4SB,Technology Package,X31 Off-Road Package,7 Speakers,AM/FM radio: SiriusXM with 360L,Bose Premium 7-Speaker Sound System,Radio: AM/FM w/Premium GMC Infotainment System,SiriusXM w/360L Trial Subscription,Steering Wheel Audio Controls,Air Conditioning,Automatic temperature control,Electric Rear-Window Defogger,Front dual zone A/C,Rear window defroster,120-Volt Bed Mounted Power Outlet,120-Volt Instrument Panel Power Outlet,Driver Memory,Memory seat,Power driver seat,Power steering,Power windows,Push Button Start,Remote keyless entry,Remote Vehicle Starter System,Steering wheel mounted audio controls,Universal Home Remote,Manual Tilt-Wheel/Telescoping Steering Column,Off-Road Suspension,Speed-sensing steering,Traction control,4-Wheel Disc Brakes,ABS brakes,Dual front impact airbags,Dual front side impact airbags,Emergency communication system: OnStar,Front anti-roll bar,Front wheel independent suspension,Keyless Open & Start,Low tire pressure warning,Occupant sensing airbag,Overhead airbag,Power Sunroof,Pickup Box,Brake assist,Electronic Stability Control,Lane Departure Warning System,Hill Descent Control,Auto High-beam Headlights,Delay-off headlights,Front fog lights,Fully automatic headlights,Panic alarm,Security system,Unauthorized Entry Theft-Deterrent System,Speed control,2-Speed Active Transfer Case,Dual 220-Amps Primary/170-Amps Aux Alternators,Engine Block Heater,Exhaust Brake,Heavy-Duty 80 Amp Battery,High Idle Switch,Auto-dimming door mirrors,Bumpers: body-color,Front License Plate Kit,Gloss Black Header Grille & Grille Insert Bars,Heated door mirrors,IntelliBeam Automatic High Beam On/Off,LED Cargo Area Lighting,LED Smoked Amber Roof Marker Lamps,Off-Road High Clearance Step (LPO),Power door mirrors,Power-Retractable Black Assist Steps,Rear step bumper,Rear Wheelhouse Liners,Spray-On Pickup Bedliner w/GMC Logo,Turn signal indicator mirrors,Winter Grille Cover,2 Charge-Only Rear USB Ports,2 Charge/Data USB Ports Inside Center Console,2 USB Ports,Apple CarPlay/Android Auto,Auto-dimming Rear-View mirror,Automatic Emergency Braking,Bed View Camera w/2 Trailer Camera Provisions,Buckle to Drive,Compass,Console-Mounted Safe (LPO),Driver door bin,Driver vanity mirror,Floor-Mounted Center Console,Following Distance Indicator,Forward Collision Alert,Front Pedestrian Braking,Front Prem Floor Liners w/Removable Carpet Insert,Front reading lights,HD Surround Vision,Heated steering wheel,Illuminated entry,Inside Rearview Auto-Dimming Rear Camera Mirror,Multicolor 15" Diagonal Head-Up Display,OnStar Services Capable,Outside temperature display,Overhead console,Passenger vanity mirror,Rear Cross Traffic Alert,Rear Prem Floor Liners w/Removable Carpet Insert,Rear reading lights,Rear seat center armrest,Tachometer,Telescoping steering wheel,Tilt steering wheel,Trailer Cam Provisions & Trailer Viewing Software,Trailer Side Blind Zone Alert,Trip computer,Ultrasonic Front & Rear Park Assist,Voltmeter,Wireless Charging,Wireless Phone Projection,10-Way Power Driver Seat Adjuster w/Lumbar,10-Way Power Passenger Seat Adjuster w/Lumbar,Front Bucket Seats,Front Center Armrest,Heated 2nd Row Outboard Seats,Heated Driver & Front Outboard Passenger Seats,Heated front seats,Heated rear seats,Perforated Leather-Appointed Front Seat Trim,Power passenger seat,Safety Alert Seat,Split folding rear seat,Ventilated Driver & Front Passenger Seats,Ventilated front seats,Passenger door bin,Hitch Guidance w/Hitch View,In-Vehicle Trailering System App,Trailer Tire Pressure Monitor Sensors,Alloy wheels,Wheels: 20" High Gloss Black 8 Spokes Aluminum,Deep-Tinted Glass,Front Rain-Sensing Wipers,Power Front Passenger Windows w/Express Up/Down,Power Sliding Rear Window w/Defogger,Rain sensing wipers,Variably intermittent wipers,3.42 Axle Ratio,3.73 Rear Axle Ratio