New
2025
GMC
Sierra 2500 HD
SLT
- MSRP Less Savings $77,614
- MSRP $79,775
- Savings $2,161
See Important Disclosures Here
New
2025
GMC
Sierra 2500 HD
SLT
Dealership Photos
Manufacturer Photos
May not represent actual vehicle (options, colors, trim and body style may vary).
Current Offers
- MSRP $79,775
- AutoNation Savings 1- $2,161
- MSRP Less Savings $77,614
- Savings $2,161
Available Specials
- UAW Hourly Employee Vehicle Allowance 2$1,500
- New Inventory Special 3
- 3.9% APR for 48 Months for Well-Qualified Buyers When Financed w/ GM Financial 424-40G-15: For Well-Qualified Buyers When Financed w/ GM Financial
Click here for more offer information
1Savings from MSRP. AutoNation Savings are available to everyone.
22025 UAW-GM Hourly Employee Vehicle AllowanceREFER TO WWW.GMFAMILYFIRST.COM FOR COMPLETE ELIGIBILTY DETAILS. Must meet incentive eligibility criteria. Not all buyers may qualify. Please ask your salesperson for details.
3Please see dealer for details.
43.9% APR for 48 months for well-qualified buyers when financed w/GM Financial. Monthly payment is $22.53 for every $1000 you finance. Average example down payment is 10.0%. Not available with leases and some other offers. Must take new retail delivery by 12/02/2024.
Specifications
- Exterior Sterling Metallic
- Interior Jet Black
- MSRP $79,775
- Mileage 5
- Transmission Automatic
- Engine 6.6L 8 CYL
- Model Code TK20743
- Stock Number SF155391
- VIN 1GT4UNEY0SF155391
- Location AutoNation Buick GMC West Sahara
Specifications
Exterior
- Side Bed Step, Black textured step pads help provide secure footing Integrated on forward portion of outer bed on driver and passenger side to provide ease of access to forward portion of the bed
- Tailgate with EZ Lift assist, power lock & release, Hitch area lighting May require additional optional equipment
- 18" LT275/70R18 all-terrain, blackwall spare tire, May require additional optional equipment
- LED fog lamps
- Chrome front bumper, May require additional optional equipment
- Cargo tie-downs, 12-fixed rated at 500 lbs. per corner
- Chrome beltline moldings
- Animated LED Signature Tail lamps with Stop, turn and Reverse lamps, LED taillamps with LED stop lights and animation
- Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
- Rainsense automatic wipers, 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
- 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
- Tailgate and bed rail protection caps
- Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass, Chrome mirror caps AT4 and AT4X features high gloss Black 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
- Chrome door handles
- 18" machined aluminum wheels with Dark Grey metallic accents
- Deep-tinted glass, Provides added protection from sun and glare
- 18" LT275/70R18E all-terrain, blackwall tires
- Spare tire carrier lock, Helps keep spare tire secure
- Chrome mirror caps
- Cab-mounted cargo area lamps, Activated by switch located on center switch bank Illuminates the cargo bed area
- 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
- IntelliBeam, At speeds above 25 mph, can automatically turn vehicle's high beams on and off according to surrounding traffic conditions
- Chrome rear bumper, With integrated CornerSteps May require additional optional equipment
- Cargo bed LED lighting, Provides light to find cargo in the bed May require additional optional equipment
- Front license plate bracket, Front bracket is included if displaying a front license plate is required in your state
- 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 GMC logo on all trims except PRO
- Winter Grille Cover, May require additional optional equipment
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
- 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
- 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
- USB ports, (2) Charge ports located on rear of console¹
- Assist handles, Front A-pillar mounted for Driver and Passenger Rear B-pillar mounted
- 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
- Compass, Located in instrument cluster
- 10-way power driver seat with power lumbar, Includes 8-way power driver seat Includes a 2-way power lumbar control
- Power door locks, 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)
- Cruise control, Maintains a selected speed while driving Automatically disengages when the vehicle's traction control system needs to limit wheelspin on slippery surfaces or when the StabiliTrak® stability control system detects an oncoming skid Set and resume speed functions Steering-wheel mounted controls to easily maintain and manage cruising speed
- 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
- 10-way power front passenger seat, Includes 8-way power front passenger seat Includes a 2-way power lumbar control
- Up-level rear seat with storage package, 60/40 Full-length folding bench seat Seatback storage on left and right side Center fold out armrest with 2 cupholders Underseat storage (full cab width)
- 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 High definition display provides crisp, premium appearance
- Power windows with rear express-down
- Driver memory, Press memory button 1 or 2 to program and recall preferences May require additional optional equipment
- 120-volt box-mounted power outlet, 3-prong auxiliary household-style outlet Located in the pickup bed May require additional optional equipment
- 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
- Outside temperature display, Located in infotainment display
- Rear air vents, Provides cabin comfort for rear occupants
- Wrapped steering wheel
- 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
- 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 setting Use, control and manage select smartphone apps through the Infotainment system Voice-activated technology for phone
- Inside rearview auto-dimming mirror, Automatically dims the inside rearview mirror when it senses bright light from behind When headlamp glare is no longer detected, the mirror returns to its normal state
- Rear window defogger, Utilizes a warming grid to help remove fog or frost from the rear window
- 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
- 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
- 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
- Steering-wheel mounted controls, Allow the driver to easily operate the audio system and phone interface controls May require additional optional equipment
- Carpeted floor covering, Color-keyed to match the interior
- USB ports, (2) Data/charge ports located on instrument panel¹
- Front center console, Includes reconfigurable feature with cupholders, cell phone storage, power cord management and file holder capacity 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 May require additional optional equipment
- Wireless Charging, Uses induction technology for select portable electronic devices¹ Convenient charging location Customers can charge their smartphones while they drive without connecting to any cables May require additional optional equipment
- Front bucket seats, May require additional optional equipment
- USB ports, (2) Data/charge ports located inside center console¹
Entertainment
- Wi-Fi® hotspot capable, Terms and limitations apply. See onstar.com or dealer for details. May require additional optional equipment
- Bluetooth®, Pair your compatible mobile phone to your vehicle's infotainment system¹ Place and receive hands-free phone calls Store your phone's contact list in the system to place an outgoing call quickly using the touch-screen display or voice command system With streaming audio capability, you can listen to files stored on your phone or Bluetooth digital media device
- SiriusXM with 360L Trial Subscription, With your trial subscription, new GM vehicles equipped with SiriusXM with 360L advance in-car technology will bring you closer to your favorite stars, artists, creators, hosts and athletes¹ SiriusXM with 360L transforms your ride with our most extensive and personalized radio experience on the road that lets you enjoy ad-free music, talk and news, live sports, comedy, podcasts and more Experience SiriusXM wherever you go in your vehicle and on the SiriusXM app with personalization features to make discovering your perfect entertainment easier than ever before
- Wireless phone projection, For Apple CarPlay™¹ and Android Auto™²
- 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 setting Use, control and manage select smartphone apps through the Infotainment system Voice-activated technology for phone
- Bose Premium Sound System, 7-speakers with Richbass® woofer Bose is renowned for expert sound engineering and high-quality audio and with premium speakers positioned throughout the cabin May require additional optional equipment
Mechanical
- External engine oil cooler, Heavy-duty air-to-oil cooler Helps extend engine oil life under heavy loads
- Black vertical recovery hooks, Two front frame-mounted¹
- Fully boxed frame, Hydroformed front section High-strength steel
- Push Button Start
- 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
- Digital Variable Steering Assist, This system automatically adjusts steering based on speed, road conditions, and other inputs to help reduce driver fatigue
- 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 May require additional optional equipment
- 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
- 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
- Pickup bed, Roll-formed high-strength steel Includes bed assist step
- Suspension Package, Designed to help maintain handling and ride quality while towing a trailer or carrying a load
- 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
- 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
- Brake pad wear indicator
- 11,750 lbs. GVWR, When properly equipped; includes weight of vehicle, passengers, cargo and equipment
- 220-amp alternator, May require additional optional equipment
- 3.42 rear axle ratio, Requires a diesel engine
- 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
- 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
- Engine block heater, Helps ease cold weather starts Heats the engine and engine block fluids
- 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
- 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
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
- OnStar® services capable, See onstar.com for details and limitations. Services vary by model. Service plan required.
- 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
- Rear Seat Belt Indicator
- 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
- 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
- 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
- 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
- OnStar Basics, Drive confidently with core OnStar services including¹ Remote commands Built-in voice assistance Real-time traffic and navigation Automatic Crash Response
- Seat Belt Adjustable Guide Loops, Front row only
- HD Rear Vision Camera, Shows high-resolution digital image of area directly behind your vehicle while in Reverse¹ Can help you park or avoid vehicles and objects You can also display an overlay of where your vehicle is heading Tailgate must be in the raised position for the HD Rear Vision Camera to operate properly May require additional optional equipment
- Teen Driver, Helps encourage safe 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
- 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
- Trailering Information Label, Provides max trailer ratings for tongue weight, conventional, gooseneck hitch and 5th wheel hitch
- StabiliTrak, electronic stability control system with traction control, Automatically helps enhance control, particularly during emergency maneuvers, by adjusting the brakes and engine torque to help you stay on your intended path Activates when vehicle sensors detect a difference between the driver's intended path and the direction the vehicle is actually travelling Includes Traction Control that detects wheel slippage and applies brake pressure and/or reduces engine power to help the driver maintain control when accelerating on wet or snow-covered roads Includes Brake Assist which detects rapid brake pedal applications due to emergency braking situations and provides additional braking via the Antilock Brake System (ABS) module Includes Trailer Sway Control Hill Start Assist
- 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 The feature also reminds the front passenger to buckle up, if equipped
- LED Daytime Running Lamps
- 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
Package
- 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
- Sierra HD Pro Safety, Forward Collision Alert¹ Following Distance Indicator¹ Front Pedestrian Braking¹ IntelliBeam Lane Departure Warning¹ Buckle to Drive Automatic Emergency Braking¹
- ProGrade Trailering System, Hitch Guidance with Hitch View In-vehicle Trailering App
- Max Trailering Package, 3500 HD Frame 3500 HD Leaf Springs 12" Rear axle 3500 HD Shock Package Gooseneck / 5th Wheel Prep provisions Bed stamped holes with caps installed
- SLT Convenience Package, Bucket seats Center console Ventilated front seats USB ports¹ in center console LED roof marker lamps Wireless Charging² Bose®3 Premium Sound System with Richbass® woofer
Warranty
- Corrosion: 3 Years/36,000 Miles, Rust-Through, 6 Years/100,000 Miles
- Roadside Assistance: 5 Years/60,000 Miles, 3.0L & 6.0L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
- Drivetrain: 5 Years/60,000 Miles, 3.0L & 6.0L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
- Warranty: <<< Preliminary 2025 Warranty >>>
- Basic: 3 Years/36,000 Miles
- Maintenance: First Visit: 12 Months/12,000 Miles
Options
- Engine, Duramax 6.6L Turbo-Diesel V8, B20-Diesel compatible
- Rear axle, 3.42 ratio
- Trailer Tire Pressure Monitor Sensors
- GVWR, 11,750 lbs. (5330 kg)
- Sterling Metallic
- Transmission, Allison 10-speed automatic
- Emissions, California state requirements
- SLT Convenience Package
- Max Trailering Package
Ask A Question
Vehicle Description
Engine; Duramax 6.6L Turbo-Diesel V8; B20-Diesel Compatible,Slt Convenience Package,Max Trailering Package,Leather Seats,Sterling Metallic,Navigation System,Keyless Start,Trailer Tire Pressure Monitor Sensors,Emissions; California State Requirements,Gvwr; 11;750 Lbs. (5330 Kg),Jet Black; Perforated Leather-Appointed Front Outboard Seating Positions,Rear Axle; 3.42 Ratio,Transmission; Allison 10-Speed Automatic
Vehicle At A Glance
- Keyless Entry
- Satellite Radio
- Bluetooth Connection
- Heated Front Seat(s)
- Smart Device Integration
- Cooled Front Seat(s)
- Multi-Zone A/C
- Steering Wheel Audio Controls
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Accessories
Shop our entire portfolio of GMC Accessories and make your vehicle one of a kind.
Whether you’re looking for Premium All-Weather Floor Liners and Floor Mats to help protect your interior, 22” Wheels and Black GMC Emblems for personal style or a set of Cross Rails to expand your cargo options, we’ve got you covered.
Choose from the only accessories Designed, Engineered, Tested and Backed by GMC as well as Associated Accessories from our partners at Thule, Kicker and others to personalize and enhance your vehicle.
All Vehicles
Dealer sets actual price. Accessories and color may vary. Quoted price subject to change without notice to correct errors or omissions. New vehicle pricing may already include applicable manufacturer incentives which may expire at any time and are subject to incentive qualification criteria and requirements, and which may be contingent upon manufacturer finance company approval. Manufacturer incentive data and vehicle features is provided by third parties and believed to be accurate as of the time of publication. Please contact the store by email or phone for details and availability of incentives. Sales tax or other taxes, tag, title, registration fees, government fees, and $699 dealer document fee are not included in quoted price.
Certain data and other content displayed herein is copyrighted by AutoNation, Inc. and / or third parties. (In addition, providers of data and other materials to AutoNation, Inc. or such third parties may have a copyright interest in and to such data to the extent that such data and other materials are subject to copyright protection under applicable United States laws.) Such data may not be reproduced or distributed in whole or in part by any printed, electronic or other means without explicit written permission from AutoNation, Inc. All information is gathered from sources that are believed to be reliable, but no assurance can be given that this information is complete and neither AutoNation, Inc. nor its suppliers assume any responsibility for errors or omissions or warrant the accuracy of this information.
Displayed MPG is based on applicable EPA mileage ratings. Use for comparison purposes only. Your actual mileage will vary, depending on how you drive and maintain your vehicle, driving conditions, battery pack age/condition (hybrid models only) and other factors. 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 2025 GMC Sierra 2500 HD and may not apply to this specific vehicle.
Certain data and other content displayed herein is copyrighted by AutoNation, Inc. and / or third parties. (In addition, providers of data and other materials to AutoNation, Inc. or such third parties may have a copyright interest in and to such data to the extent that such data and other materials are subject to copyright protection under applicable United States laws.) Such data may not be reproduced or distributed in whole or in part by any printed, electronic or other means without explicit written permission from AutoNation, Inc. All information is gathered from sources that are believed to be reliable, but no assurance can be given that this information is complete and neither AutoNation, Inc. nor its suppliers assume any responsibility for errors or omissions or warrant the accuracy of this information.
Displayed MPG is based on applicable EPA mileage ratings. Use for comparison purposes only. Your actual mileage will vary, depending on how you drive and maintain your vehicle, driving conditions, battery pack age/condition (hybrid models only) and other factors. 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 2025 GMC Sierra 2500 HD and may not apply to this specific vehicle.
