Pre-Owned
2024
GMC
Sierra 3500 HD
Denali Ultimate
- Greater Lowell Price $91,900
See Important Disclosures Here
Pre-Owned
2024
GMC
Sierra 3500 HD
Denali Ultimate
Dealership Photos
Manufacturer Photos
May not represent actual vehicle (options, colors, trim and body style may vary).
Current Offers
- Price $91,900
Other Offers You May Qualify For
- $500 Greater Lowell First Responder OR Military Re1- $500 Take Retail Delivery By 12-31-2025 - Not Compatible with Some Other Offers
Click here for more offer information
1Not available to everyone. First Responder ELIGIBILITY FOR FIREFIGHTERS, POLICE OR EMT/PARAMEDICS, 911 DISPATCHERS. For Military ELIGIBILITY, ACTIVE, RESERVE AND RETIRED MILITARY PERSONNEL (INCLUDING DISCHARGED VETERANS) AND THEIR SPOUSE. Take delivery by 12/1/2025 Residency restrictions apply. See dealer for complete details.
Specifications
- Miles 8,279
- Exterior Onyx Black
- Interior Alpine Umber
- Stock Number 245222A
- Engine 6.6 8 Cylinder Engine
- Transmission Automatic
- VIN 1GT49YEYXRF169991
Last one available
Vehicle Description
GMC CERTIFIED!!! ONE OWNER WITH ONLY 8K FOR MILES CLEAN CARFAX AND ALL THE TOYS!!! ! THIS 1 OF A KIND SINGLE REAR WHEEL LONG BED WITH THIS EQUIPMENT AND MILES IS SURE TO SELL FAST!!!! EQUIPPED WITH 6.6 DURAMAX DIESEL, DENALI ULTIMATE PKG, HEATED AND COOLED LEATHER MEMORY SEATS, MOON ROOF, NAVIGATION, TRAILERING PKG,POWER RUNNING BOARDS, 5TH WHEEL/GOOSENECK PKG, XM RADIO, ONSTAR, BLUETOOTH, 4G LTE WI-FI AND OF COURSE THAT DISTINCTIVE HONEYCOMB GRILL THAT TELLS EVERYONE YOU ARE DRIVING A DENALI MUCH MUCH MORE!!!!
Vehicle At A Glance
- Fuel Economy * N/A city / N/A hwy
- Mileage 8,279 MILES
- Transmission 10-Speed A/T
- Exterior Color Onyx Black
- Interior Color Alpine Umber
- Engine Data 6.6 8 Cylinder Engine
Specifications
Exterior
- Tailgate with EZ Lift assist, power lock & release, Hitch area lighting May require additional optional equipment
- Deep-tinted glass, Provides added protection from sun and glare
- Spray-on bedliner, Provides a Black, textured, non-skid surface that helps protect the bed and minimizes cargo shifting Covers the entire bed surface below side rails, front box top rail, gauge hole plugs and tie-downs Chemically bonded, the sprayed-on liner permanently bonds to the truck bed, providing a watertight seal Does not include spray-on liner on tailgate due to Black composite inner panel Includes logo on all trims except PRO
- Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass, Chrome mirror caps Power folding/extending Lower convex mirrors Heated upper glass Integrated turn signal indicators Puddle lamps Perimeter lighting Auxiliary lighting Extends 3.31-inches AT4 features molded in color Black mirror caps
- 20" Ultra Bright machined aluminum wheels with gloss Black inserts
- Power-retractable assist steps with LED perimeter lighting, Textured step pads help provide secure footing Retracts when not in use Deploy Running Board mode for car wash cleaning LED perimeter lighting Bright accent strip May require additional optional equipment
- Spare tire carrier lock, Helps keep spare tire secure Utilizes the same key as the door and ignition
- Rear wheelhouse liners, Help protect your truck's rear wheelhouse area from damage caused by dirt, rocks, mud, road salt and the weather May require additional optional equipment
- GMC MultiPro Tailgate, Six function tailgate designed to help improve loading, unloading and accessing the cargo box Hitch area lighting Power lock and release May require additional optional equipment
- Chrome mirror caps
- Winter Grille Cover, May require additional optional equipment
- IntelliBeam, At speeds above 25 mph, can automatically turn vehicle's high beams on and off according to surrounding traffic conditions
- Power sliding rear window with rear defogger, Helps to keep your rear view clear of fog or frost Utilizes a warming grid to remove fog or frost from the rear window The window switch is conveniently located in the overhead console for easy 1-touch operation May require additional optional equipment
- Cargo bed LED lighting, Provides light to find cargo in the bed Rear pillar lamps May require additional optional equipment
- Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps, Illuminate when your vehicle is running and headlamps are off
- LED fog lamps, Help minimize glare in adverse driving conditions
- MultiPro™ Audio System by Kicker, A weatherproof audio package that fits the MultiPro™ exclusively. Bluetooth® sound streams from connected devices to the 2-channel, 100 watt, 50 watts RMS per-channel Tailgate Sound System. The illuminated display puts the user in charge of the programming track, volume and source System operation that is completely independent of the interior audiosystem Bluetooth®1 compatibility for wireless playback 3.5mm and USB inputs for audio playbacks A custom ABS baffle with full gasket sealing A weatherproof amplifier hidden in the tailgate A design that maintains the full structural integrity
- Body-color front bumper
- Smoked Amber LED roof marker lamps, Roof-mounted lamps near the front of the cab
- Body-color rear bumper
- Rainsense automatic wipers, Turn on automatically when sensors detect varying degrees of precipitation on the windshield When turned on, will automatically clear the windshield when sensors detect varying degrees of precipitation on the windshield
- CornerStep rear bumper, Helps make it easier to get into and out of the pickup bed Located at each end of the rear bumper Textured step pads to help provide secure footing
- 18" LT275/70R18 all-terrain, blackwall spare tire, May require additional optional equipment
- 20" LT275/65R20 all-terrain, blackwall tires
- Power sunroof, Opens over the first row at the push of a button Retracts into the roof Offers tilt and slide features with express-open and -close May require additional optional equipment
- Chrome door handles
- Front license plate bracket, Front bracket is included if displaying a front license plate is required in your state
Interior
- USB ports, (2) Data/charge ports located inside center console¹
- Driver memory, Press memory button 1 or 2 to program and recall preferences May require additional optional equipment
- Ventilated driver and front passenger seats, Separate buttons on the climate control panel allow you to choose from 3 levels of fan circulation Individually controlled Cooling feature includes both seatbacks and cushions Includes heated front seating May require additional optional equipment
- Rear window defogger, Helps to keep your rear view clear of fog or frost Utilizes a warming grid to help remove fog or frost from the rear window
- 16-way power passenger seat with power lumbar and massage
- Remote Start, Start your vehicle remotely and step into a comfortably warmed or cooled vehicle, depending on the weather and your preset preferences Locks doors and turns on parking lamps while the engine is running Activates the climate control system
- In-Vehicle Trailering App, Checklist¹ Trailer maintenance reminders Trailer security alerts Trailer mileage Tow/haul reminder Trailer electrical diagnostics Includes trailer tire pressure monitoring alert ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed
- Wireless Charging, Uses induction technology for portable electronic devices¹ Convenient charging location on the top of the center console Device may require optional case for phones that are compatible Customers can charge their smartphones while they drive without connecting to any cables May require additional optional equipment
- Manual tilt and telescoping steering column, Allows the driver to adjust the steering wheel up or down, and the steering column forward or back May require additional optional equipment
- Front center console, Includes reconfigurable feature with cupholders, cell phone storage, power cord management and file holder capacity May require additional optional equipment
- Steering-wheel mounted controls, Allow the driver to easily operate the audio system and phone interface controls May require additional optional equipment
- Power windows with driver and front passenger express-up/down, Quickly raises the window or lowers it with the touch of a button If obstruction is detected, the anti-pinch feature will auto-reverse
- Power windows with rear express-down, May require additional optional equipment
- Carpeted floor covering, Color-keyed to match the interior
- 120-volt power outlet, 3-prong auxiliary household-style outlet Located on the instrument panel Makes it convenient for powering laptops, phone chargers and other electronic devices May require additional optional equipment
- Power windows with driver express-up/down, Quickly raises the window or lowers it with the touch of a button If an obstruction is detected, the anti-pinch feature will auto-reverse
- Front carpeted floor mats, Helps protect your interior from road debris and the elements Color-keyed to match the interior Denali models feature unique premium tufted carpeting
- USB ports, (2) First row, located on console¹
- USB ports, (2) Charge ports located on rear of console¹
- Front bucket seats, May require additional optional equipment
- Up-level rear seat with storage package, Full-length bench seat Seatback storage on left and right side Center fold out armrest with 2 cupholders Underseat storage (full cab width)
- Universal Home Remote, 3-channel programmable Conveniently activates compatible devices such as garage door openers, security systems, and home automation devices from inside your vehicle May require additional optional equipment
- 16-way power driver seat with power lumbar and massage
- Adaptive Cruise Control, Allows the cruise control set speed and following gap to be selected¹ If no vehicle is detected in your path, works like regular cruise control If a vehicle is detected in your path, can maintain the selected following gap between your vehicle and the vehicle ahead You can always override the feature and take control
- Compass, Located in instrument cluster
- Power door locks, Programmable Allows you to lock and unlock doors easily whether it's from the driver or front passenger seat or from outside using the key fob (when equipped)
- Keyless Open and Start, With the key fob in your possession, lock and unlock your car's doors by pressing the button on a front exterior door handle, increasing convenience Lockout protection helps you avoid locking keys in the vehicle
- Head-Up Display, Projects vehicle information onto the windshield low in the driver's line of sight to help you keep your eyes on the road Multi-color 15" Diagonal Head-Up Display Can select key vehicle information to display including an off-road inclinometer Adjustable vertical position and brightness of the display May require additional optional equipment
- Rear Camera Mirror, Uses a camera to provide you with the option of using a wide and less obstructed view behind your vehicle while driving instead of a traditional rearview mirror¹ The feature also allows brightness, vertical tilt and zoom adjustments May require additional optional equipment
- Heated steering wheel, With the press of a button the steering wheel quickly heats up to provide additional comfort on a cold day May require additional optional equipment
- Theft-deterrent unauthorized entry system, Sounds the horn and flashes the turn signals when someone attempts to open the vehicle without the proper key or remote transmitter Helps deter unauthorized entry, helping to protect your vehicle May require additional optional equipment
- Dual-zone automatic climate control, Automatically maintains the selected temperatures for both the driver and front passenger Allows individual climate settings for both driver and front passenger Driver and front passenger can choose a temperature up to 30 degrees difference May require additional optional equipment
- 12.3" diagonal color Driver Information Center, Includes driver personalization, warning messages and vehicle information Replaces traditional analog gauges with fully reconfigurable high definition cluster layout with normally black background and new graphics High definition display provides crisp, premium appearance Allows drivers to personalize vehicle features, including warning messages and vehicle information
- 120-volt box-mounted power outlet, 3-prong auxiliary household-style outlet Located in the pickup bed May require additional optional equipment
- Rear carpeted floor mats, Helps protect your interior from road debris and the elements Color-keyed to match the interior Denali models feature unique premium tufted carpeting
- Rear air vents, Provides cabin comfort for rear occupants
- Heated driver and front outboard passenger seats, Separate buttons on the climate control panel allow you to choose from 3 levels of warmth At the touch of a button you can warm the cushions and seatbacks with multilevel temperature control Individually controlled Seats can be programmed to automatically warm up when it's cold out May require additional optional equipment
- Heated rear outboard seats, At the touch of a button you can warm the cushions Provide comfort in cold weather for passengers in the rear outboard seating positions Passengers can manage heat settings with their own controls May require additional optional equipment
- Leather-wrapped steering wheel, Includes controls for audio, phone, Driver Information Center and cruise control
- GMC Connected Access capable, Subject to terms. See onstar.com or dealer for details. May require additional optional equipment
- 13.4" diagonal GMC Premium Infotainment System with Google built-in, 13.4" diagonal GMC Premium Infotainment System with Google built-in, includes multi-touch display, AM/FM/SiriusXM¹ radio capable Bluetooth®2 streaming audio for music and select phones Wireless Apple CarPlay™ capability for compatible phones³ Wireless Android Auto™ capability for compatible phones⁴ Customize and manage entertainment and vehicle feature settings through the 13.4" diagonal touch-screen display Use, control and manage select smartphone apps through the Infotainment system Voice-activated technology for phone
Entertainment
- 13.4" diagonal GMC Premium Infotainment System with Google built-in, 13.4" diagonal GMC Premium Infotainment System with Google built-in, includes multi-touch display, AM/FM/SiriusXM¹ radio capable Bluetooth®2 streaming audio for music and select phones Wireless Apple CarPlay™ capability for compatible phones³ Wireless Android Auto™ capability for compatible phones⁴ Customize and manage entertainment and vehicle feature settings through the 13.4" diagonal touch-screen display Use, control and manage select smartphone apps through the Infotainment system Voice-activated technology for phone
- Wireless phone projection, For Apple CarPlay™¹ and Android Auto™²
- Wi-Fi® hotspot capable, Terms and limitations apply. See onstar.com or dealer for details. May require additional optional equipment
- Bose® Premium Series with 12-speaker system, 12-speakers with Richbass® woofer Bose® is renowned for expert sound engineering and high-quality audio and with premium speakers positioned throughout the cabin, you'll get rich, concert-like sound
- SiriusXM® with 360L 3-month Trial Subscription, Enjoy a 3-month Platinum Trial Subscription and enjoy the full SiriusXM with 360L experience¹ This vehicle is equipped with SiriusXM with 360L. This advanced in-car technology will guide you to the most SiriusXM channels, shows and exclusive content for a ride that's uniquely you, with personalization features to make discovering your perfect soundtrack easier than ever before For the full SiriusXM with 360L experience, a Platinum Plan is required. If you subscribe to a lower package, certain features of 360L will not be available With the Platinum Plan you can listen when outside of your vehicle on the SXM App May require additional optional equipment. Some features, including streaming content and listening recommendations require GM connected vehicle services Some features, including streaming content and listening recommendations require GM connected vehicle services²
Mechanical
- Pickup bed, Roll-formed high-strength steel
- Skid plates, Help protect the front underbody, oil pan, differential case and transfer case May require additional optional equipment
- Heavy-Duty Air Filter, Thick construction helps to trap more dirt before it can enter the air intake
- Air filtration monitoring, Alerts the driver when the engine air filter needs replacement
- Allison® 10-speed automatic transmission, Electronically controlled with overdrive for smooth-shifting performance Tow/Haul mode that reduces shift cycling for better control and improved cooling when towing or hauling heavy loads Auto Grade Braking that automatically downshifts when needed to enable engine braking, helping to slow the vehicle on downhill grades and reduce brake wear (operates in Tow/Haul mode) May require additional optional equipment
- Brake pad wear indicator
- Chrome vertical recovery hooks, Two front frame-mounted1
- External engine oil cooler, Heavy-duty air-to-oil cooler Helps extend engine oil life under heavy loads
- Diesel exhaust brake, Reduces the amount of conventional braking needed while towing a heavy trailer or driving downhill Uses the variable vanes in the turbocharger to smoothly and quietly create additional back pressure in the engine to help slow the vehicle Works with the transmission's Tow/Haul mode and Auto Grade Braking to help the driver maintain the desired speed even on long, steep downgrades Switch activated May require additional optional equipment
- Digital Variable Steering Assist, This system automatically adjusts steering based on speed, road conditions, and other inputs to help reduce driver fatigue
- Fully boxed frame, Hydroformed front section High-strength steel
- 6.6L Duramax Turbo-Diesel V8 engine, 470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm 3.42 rear axle ratio Exhaust brake Engine block heater Capped fuel fill Paired with an Allison® 10-speed automatic transmission Diesel Exhaust Fluid (DEF) fill located in fuel door Engine after run feature for cooling performance May require additional optional equipment
- Push Button Start
- 3.42 rear axle ratio, Requires a diesel engine
- Engine block heater, Helps ease cold weather starts Heats the engine and engine block fluids
- Autotrac® 2-speed transfer case with push button controls, 4-button control 2WD, Auto, 4WD, 4WD LO 2WD High for most on-road and highway situations 4WD High for snowy or wet roads when added traction is needed 4WD Low for deep sand, mud or snow to provide maximum torque to all 4 wheels When in AUTO mode, remains in 2WD mode until the system detects wheel slippage Automatically engages 4WD until traction is regained Neutral ONLY used for towing vehicle (Dinghy tow capability)- allows vehicle to roll freely May require additional optional equipment
- 4-wheel antilock disc brakes, Help reduce wheel lockup and maintain steering control during hard braking on most slippery surfaces DuraLife™ brake rotors feature a hardened surface to reduce corrosion and provide quieter braking with less vibration. DuraLife™ rotors are hardened and strengthened during the manufacturing process Brake system features a corrosion-fighting process called Ferritic Nitro-Carburizing (FNC) which can double rotor life expectancy and reduce or minimize rust over non-FNC coated rotors
- Integrated trailer brake controller, Integrated with the antilock brake system (ABS) Helps provide measured brake force signaling to electric-controlled trailer brake systems Trailer gain and output are displayed in the Driver Information Center
- External auxiliary transmission oil cooler, Heavy-duty air-to-oil cooler Helps provides optimal transmission performance even when operating under a heavy load or towing a trailer May require additional optional equipment
- 12,250 lbs. GVWR, When properly equipped; includes weight of vehicle, passengers, cargo and equipment
- Automatic locking rear differential, When the differential senses a significant difference in wheel speed, it locks to turn both rear wheels in unison for added traction The Eaton® Locker senses a difference in wheel speed of approximately 100 rpm
- Dual, 220 amp and 170 amp each alternators, May require additional optional equipment
- Gooseneck / 5th Wheel Prep Package, Hitch platform to accept Gooseneck or 5th wheel hitch Hitch platform with tray to accept ball and stamped box holes with caps installed Box mounted 7-pin trailer harness May require additional optional equipment
Safety
- Forward Collision Alert, Warns you if it detects a potential collision with a detected vehicle you're following so you can take action¹ Can also provide a tailgating alert if you're following a vehicle much too closely
- Automatic Emergency Braking, Can help you avoid or reduce the severity of a collision with a detected vehicle you're following using camera technology¹ Can automatically provide hard emergency braking or enhance your hard braking Works at speeds between 5 and 50 mph
- Rear Seat Belt Indicator warning
- HD Surround Vision, Provides selectable digital camera views of the area around your vehicle¹ Can help you park or avoid vehicles and objects You can also display a guideline to show where your vehicle is heading Tailgate must be in the raised position for the HD Rear Vision Camera to operate properly Includes 2 Trailer Camera Provisions Requires Auxiliary Trailer Camera if one of the following camera views is desired: Transparent Trailer, Rear Trailer View, Picture-in-Picture or Inside Trailer View May require additional optional equipment
- Front and Rear Park Assist, Provides alerts of nearby detected vehicles and objects in front of or behind your vehicle¹ These can help you park and avoid collisions May require additional optional equipment
- Rear Seat Reminder, Helps to remind the driver to check the back seat(s) before leaving the vehicle¹ Activates when rear doors are opened and closed up to 10 minutes before or anytime while your vehicle is on Under certain conditions, once the vehicle is switched off, designed to sound audible chimes and display a visual message within the driver display Activates only once each time the vehicle is turned on and off, and would require re-activation on a second trip
- 3 Years of OnStar® Premium Plan
- Hill Descent Control, Uses antilock braking to help provide a smooth, controlled descent Helps driver maintain control of the vehicle without depressing the brake pedal Activates by pushing a button below the instrument panel May require additional optional equipment
- Safety Alert Seat, Uses left-, right- or both-side driver seat vibration pulses to help you detect and identify the direction of potential crashes¹ You can also switch to beeping crash avoidance alerts May require additional optional equipment
- Hitch Guidance, When in Reverse, displays a centered guideline on the Rear Vision Camera view¹ Can help you line up the hitch to your trailer When driving, lets you check the trailer using Rear Vision Camera view
- Tire Pressure Monitoring System with Tire Fill Alert, Monitors tire pressure and alerts of an under-inflated condition in one or more of the tires¹ Provides visual and audible alerts outside the vehicle when inflating an under inflated tire to the recommended tire pressure
- Rear Cross Traffic Alert, Warns you of detected vehicles crossing behind you when in Reverse¹ May require additional optional equipment
- Trailer Tire Pressure and Temperature Sensors, Set of 4 sensors Sensors will be shipped loose with the truck and will need to be installed on trailer by customer Additional or replacement sensors are available as GM Accessory System is capable of monitoring up to 6 wheels May require additional optional equipment
- Buckle to Drive, Helps remind the driver to buckle their seat belt before driving by preventing the vehicle from being shifted out of PARK temporarily when the driver's seat belt is not buckled Also reminds the front passenger to buckle up
- Trailering provisions, Includes connector for accessory wiring harness
- Front Pedestrian Braking, At speeds between 5 and 50 mph, can help you avoid or reduce the severity of a collision with a pedestrian it detects directly in front of you¹ Provides pedestrian alerts and can automatically provide hard emergency braking or enhance driver's hard braking Limited nighttime and low visibility performance
- Bed View Camera, Camera in the Center High Mount Stop Lamp (CHMSL) provides an elevated view of the truck bed from the back of the cab¹ Allows driver to see inside the cargo bed on the infotainment display to help with 5th wheel or gooseneck hitching and to check cargo Includes 2 Trailer Camera Provisions May require additional optional equipment
- 6 airbags, Dual-stage frontal airbags for driver and front outboard passenger¹ Seat-mounted side-impact airbags for driver and front outboard passenger¹ Head-curtain airbags for outboard seating positions¹ Includes front outboard Passenger Sensing System for frontal outboard passenger airbag and illuminates a status light that indicates whether the airbag is on or off¹
- Trailer Side Blind Zone Alert, Provides visual side-mirror alerts when a moving vehicle is detected in a side blind zone that is extended to trailer lengths¹ May require additional optional equipment
- Hitch View, Shows a close-up view of the trailer hitch¹ In Reverse, the view can be used to line up your hitch to your trailer When driving, the view can be used to check your trailer hitch Shifting to Park automatically engages the Electric Parking Brake (if equipped) May require additional optional equipment
- OnStar® & GMC Connected Services capable, Terms and limitations apply. See onstar.com or dealer for details.
- Following Distance Indicator, Displays the following time in seconds between your vehicle and a detected vehicle in front of you¹ Designed to help you maintain a safe following distance
- Lane Departure Warning, Alerts you when it detects that you are unintentionally drifting out of detected lane lines¹ System alerts do not occur if you're using your turn signal, or it detects you may be intentionally leaving your lane
- Seat Belt Adjustable Guide Loops, Front row only
- Teen Driver, Helps encourage better driving habits for teens by providing an in-vehicle report card¹ Activates certain safety systems, if equipped, when a Teen Driver-designated key fob is used Mutes the radio until the front-seat occupants fasten their seat belts
Package
- Sierra HD Pro Safety, Forward Collision Alert¹ Following Distance Indicator¹ Front Pedestrian Braking¹ IntelliBeam Lane Departure Warning¹ Buckle to Drive Automatic Emergency Braking¹
- Technology Package, Rear Camera Mirror¹ Multi-color 15" Diagonal Head-Up Display¹ Adaptive Cruise Control¹ on Denali AT4 Preferred Package on AT4 May require additional optional equipment
- Trailering Package, Trailer hitch¹ Trailering hitch platform Includes a 2.5" receiver hitch (with 2" insert), 4-pin and 7-pin connectors 7-wire electrical harness and 7-pin sealed connector for connecting your trailer's lights and brakes to your vehicle Hitch Guidance² May require additional optional equipment
- Gooseneck Hitch Package, Gooseneck ball Chain tiedown kit with case May require additional optional equipment
- Snow Plow Prep / Camper Package, Power feed to accommodate a backup and roof emergency light¹ A single 220-amp alternator Heavy-duty front springs Under body skid plates to help protect the transfer case from debris May require additional optional equipment
Similar Vehicles
- Greater Lowell Price
- $89,185
- MSRP
- $90,185
- Fuel Economy
- N/A city / N/A hwy
- Stock Number
- 255049
- Engine Data
- 6.6 8 Cylinder Engine
- Exterior Color
- Downpour Metallic
All Vehicles
The Manufacturers Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.
All Vehicles
MPG estimates on this website are EPA estimates; your actual mileage may vary. For used vehicles, MPG estimates are EPA estimates for the vehicle when it was new. The EPA periodically modifies its MPG calculation methodology; all MPG estimates are based on the methodology in effect when the vehicles were new (please see the Fuel Economy portion of the EPAs website for details, including a MPG recalculation tool).
The features and options listed are for the new 2024 GMC Sierra 3500 HD and may not apply to this specific vehicle.