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The 2026 GMC Sierra 2500 HD AT4 Crew Cab 4WD is built to handle it all. This lifted truck adds even more presence and capability to an already rugged platform, giving you increased ground clearance and a bold stance for driving around Morton, IL or tackling tougher terrain. more If you are searching for a heavy-duty truck that delivers serious power with off-road capability, the 2026 GMC Sierra 2500 HD AT4 Crew Cab 4WD is built to handle it all. This lifted truck adds even more presence and capability to an already rugged platform, giving you increased ground clearance and a bold stance for driving around Morton, IL or tackling tougher terrain. Whether you need a truck for demanding job sites or weekend adventures, it offers the strength and confidence you expect from a Sierra HD. You can lifted GMC Sierra 2500 HD to explore this specific truck and see everything it has to offer. What Makes This 2026 GMC Sierra 2500 HD AT4 Stand Out? This Sierra 2500 HD AT4 is built for drivers who want serious capability without sacrificing comfort. According to the window sticker, it features a Duramax 6.6L turbo-diesel V8 engine paired with an Allison 10-speed automatic transmission, delivering exceptional torque and smooth power delivery. The AT4 trim also adds aggressive styling, off-road-focused design, and a more rugged overall appearance that pairs perfectly with the lifted stance. How Does This Sierra 2500 HD Perform for Work and Towing? This truck is designed to handle demanding workloads with ease. With proper equipment, the Sierra 2500 HD can tow over 20,000 pounds, making it a strong choice for hauling trailers, equipment, or recreational gear. The Duramax diesel engine delivers consistent power while the Allison transmission ensures smooth shifting under load. Combined with features like a trailer brake controller and integrated trailering technology, this truck is built to make towing more controlled and manageable. What Off-Road Features Come with This AT4 Model? The AT4 trim is designed specifically for off-road capability. It includes skid plates, all-terrain tires, a 2-speed Autotrac transfer case, and a traction select system with dedicated off-road modes. The lifted stance further enhances its capability by improving approach angles and ground clearance, making it better suited for uneven terrain. Whether you are navigating job sites or exploring trails, this truck is engineered to perform with confidence. What Interior Features Can You Expect? Inside, the Sierra 2500 HD AT4 offers a premium and comfortable cabin with durable materials and advanced technology. You will find heated and ventilated front seats, heated rear seats, dual-zone climate control, and a heated steering wheel. The 13.4-inch touchscreen with Google built-in, wireless Apple CarPlay and Android Auto, and Bose premium sound system provide a modern and connected experience. These features make it just as comfortable for daily driving as it is capable for heavy-duty work. Why Choose a Lifted Sierra 2500 HD AT4 Near Morton, IL? For drivers near Morton, IL, a lifted Sierra 2500 HD AT4 offers the perfect combination of heavy-duty performance, off-road capability, and bold styling. The added height gives it a commanding presence while improving visibility and functionality in tougher conditions. Whether you need a truck for work, towing, or recreation, this Sierra 2500 HD is built to handle it all. Frequently Asked Questions About This GMC Sierra 2500 HD What engine does this Sierra 2500 HD AT4 have? ▼ This truck is equipped with a Duramax 6.6L turbo-diesel V8 paired with an Allison 10-speed automatic transmission. It delivers exceptional torque and performance, making it ideal for heavy-duty towing and hauling. How much can this Sierra 2500 HD tow? ▼ When properly equipped, the Sierra 2500 HD can tow over 20,000 pounds. This makes it a strong option for hauling trailers, equipment, or recreational vehicles with confidence. What makes the AT4 trim unique? ▼ The AT4 trim is designed for off-road capability, featuring skid plates, off-road suspension, and advanced traction systems. It is ideal for drivers who want more capability beyond a standard heavy-duty truck. How does a lifted Sierra 2500 HD drive? ▼ A lifted Sierra 2500 HD provides a higher driving position and improved visibility. Despite the added height, it remains stable and controlled thanks to its heavy-duty suspension and advanced engineering. Is this truck comfortable for everyday driving? ▼ Yes, this Sierra 2500 HD AT4 offers a comfortable and refined interior with advanced technology and premium materials. It is well-suited for both daily driving and long trips.

This lifted 2026 GMC Sierra 1500 Denali Crew Cab 4WD stands out with a commanding presence while also offering the refined comfort and advanced technology the Denali trim is known for. more If you are looking for a premium truck that combines bold styling with elevated capability, the 2026 GMC Sierra 1500 Denali Crew Cab 4WD delivers on every level. This lifted truck stands out with a commanding presence while also offering the refined comfort and advanced technology the Denali trim is known for. Whether you are driving around Morton, IL or heading out on longer trips, it provides a smooth and confident ride with added ground clearance and a more aggressive stance. You can lifted GMC Sierra 1500 to explore this specific truck and see everything it has to offer. What Makes This 2026 GMC Sierra 1500 Denali Stand Out? This Sierra 1500 Denali Crew Cab 4WD is designed for drivers who want both performance and luxury. According to the window sticker, it features a Duramax 3.0L turbo-diesel engine paired with a 10-speed automatic transmission, delivering strong torque and smooth power for towing and everyday driving. The Denali trim adds signature styling elements like chrome accents, premium wheels, and a distinctive grille, giving it a high-end appearance. Combined with the lifted stance, this truck offers both visual impact and practical benefits like improved ground clearance. How Does This Sierra 1500 Perform for Daily Driving and Towing? The Sierra 1500 is built to handle a wide range of driving needs with ease. With available diesel torque reaching up to 495 lb-ft, this truck delivers strong pulling power for towing and hauling while maintaining efficiency for longer drives. The 10-speed automatic transmission helps ensure smooth acceleration and responsive performance in different conditions. Whether you are commuting, towing a trailer, or heading out on the highway, it offers a balanced and capable driving experience. What Interior Features Come with This Denali Model? Inside, the Denali trim focuses on comfort, technology, and premium materials. The cabin includes Forge perforated leather seating, heated and ventilated front seats, heated rear seats, and dual-zone climate control. A 13.4-inch touchscreen with Google built-in, wireless Apple CarPlay and Android Auto, and a Bose premium sound system provide a modern and connected experience. Additional features like a head-up display and adaptive cruise control enhance convenience and driver confidence. Is This Sierra 1500 Denali Good for Off-Road and Lifted Driving? While the Denali trim is known for luxury, the lifted setup adds a new level of versatility. The added height improves visibility and helps the truck handle rougher terrain when needed. Combined with 4WD capability, all-terrain tires, and advanced suspension systems, it remains stable and controlled whether you are on pavement or uneven surfaces. It is a great option for drivers who want a refined truck that still has the capability to go beyond the road. Why Choose a Lifted Sierra 1500 Denali Near Morton, IL? For drivers near Morton, IL, a lifted Sierra 1500 Denali offers a unique combination of upscale comfort and bold capability. The Denali trim delivers a premium experience with advanced features, while the lift gives it a stronger presence and added functionality. Whether you need a truck for daily driving, towing, or simply want something that stands out, this Sierra 1500 is built to meet those needs. Frequently Asked Questions About This GMC Sierra 1500 What engine does this Sierra 1500 Denali have? ▼ This truck is equipped with a Duramax 3.0L turbo-diesel engine paired with a 10-speed automatic transmission. It delivers strong torque and efficiency, making it ideal for towing and long-distance driving. What makes the Denali trim different from other Sierra 1500 models? ▼ The Denali trim focuses on luxury and advanced technology, offering premium materials, upgraded styling, and enhanced comfort features. It is designed for drivers who want a more refined full-size truck experience. How does a lifted Sierra 1500 Denali drive? ▼ A lifted Sierra 1500 Denali provides a higher driving position and improved road visibility. Despite the added height, it remains smooth and controlled thanks to its advanced suspension and refined engineering. Is this truck good for towing? ▼ Yes, this Sierra 1500 is well-equipped for towing with strong engine performance and advanced trailering features. It offers the capability needed for hauling trailers, boats, or equipment. Is the Sierra 1500 Denali comfortable for daily driving? ▼ Yes, the Denali trim is designed for everyday comfort with premium seating, advanced technology, and a quiet cabin. It provides a smooth and enjoyable driving experience whether you are commuting or traveling longer distances.

The 2026 GMC Sierra 2500 HD SLT Crew Cab 4WD delivers serious power, capability, and premium comfort, built to exceed expectations. more If you are searching for a heavy-duty lifted truck that delivers serious power, capability, and premium comfort, the 2026 GMC Sierra 2500 HD SLT Crew Cab 4WD is built to exceed expectations. Available at Lighthouse Buick GMC, this truck combines a bold lifted stance with the strength drivers need for towing, hauling, and demanding jobs. Whether you are working around Morton or heading off-road, it offers a confident and capable driving experience with standout presence. You can lifted GMC Sierra 2500 to explore this truck and see everything it has to offer. What Makes This 2026 GMC Sierra 2500 HD SLT Stand Out? This Sierra 2500 HD SLT is designed for drivers who need more than a standard pickup. It features a Crew Cab 4WD configuration powered by a 6.6L V8 gasoline engine paired with a 10-speed automatic transmission. This setup delivers strong, reliable performance for towing and heavy-duty tasks while maintaining smooth power delivery. The lifted stance enhances both appearance and function, giving the truck increased ground clearance and a more aggressive look. Finished in Sterling Metallic with a Dark Walnut and Slate interior, it offers a refined yet rugged feel. How Does This Sierra 2500 HD Perform for Work and Off-Road Use? This truck is built to handle tough conditions with confidence. It includes the X31 Off-Road and Protection Package, adding Rancho shocks, hill descent control, skid plates, and all-terrain tires for improved durability and traction. The integrated trailering package, trailer brake controller, and advanced trailering technologies help make towing safer and easier. With its lifted setup and heavy-duty engineering, this Sierra is ready for both demanding job sites and off-road environments. What Interior Features Come with This SLT Model? Inside, the Sierra 2500 HD SLT offers a premium cabin designed for comfort and convenience. You will find heated and ventilated front seats, a heated steering wheel, dual-zone climate control, and driver memory settings. The truck also includes a 13.4-inch touchscreen with Google built-in compatibility, wireless Apple CarPlay and Android Auto, and a 12.3-inch digital driver display. Additional features like Bose premium audio, wireless charging, and a center console enhance the overall driving experience, making it comfortable for long drives or daily use. What Safety and Towing Technology Is Included? This Sierra 2500 HD is equipped with advanced safety and trailering features to support both work and everyday driving. It includes forward collision alert, automatic emergency braking, lane departure warning, and following distance indicator. The Sierra HD Pro Safety Plus Package adds HD surround vision, trailer side blind zone alert, rear cross traffic alert, and front and rear park assist. Combined with the vehicle trailering app and multiple camera views, this truck is designed to make towing and maneuvering easier and more controlled. Why Choose a Lifted Sierra 2500 HD Near Morton, IL? For drivers near Morton, IL, a lifted Sierra 2500 HD offers the perfect mix of heavy-duty strength and standout styling. The added height improves visibility and off-road capability while giving the truck a bold, commanding presence. Whether you need a truck for work, towing, or simply want something that stands out, this Sierra 2500 HD delivers the power and versatility to handle it all. Frequently Asked Questions About This GMC Sierra 2500 HD What engine does this Sierra 2500 HD have? ▼ This truck is equipped with a 6.6L V8 gasoline engine paired with a 10-speed automatic transmission. It delivers strong, consistent power that is well-suited for towing, hauling, and heavy-duty use. What packages are included on this specific truck? ▼ This model includes the SLT Premium Package, SLT Convenience Package, SLT Preferred Package, and Sierra HD Pro Safety Plus Package. These add features like ventilated seats, Bose premium audio, adaptive cruise control, and advanced safety technology. How does a lifted Sierra 2500 HD drive? ▼ A lifted Sierra 2500 HD offers a higher driving position and improved road visibility, which many drivers prefer. While it may feel slightly firmer due to its heavy-duty suspension and lift, it remains stable and comfortable for both work and daily driving. Is this truck good for towing heavy loads? ▼ Yes, this Sierra 2500 HD is designed for serious towing and hauling. With its powerful V8 engine and advanced trailering features, it is well-equipped to handle demanding tasks with confidence. What makes this Sierra 2500 HD SLT different from a 1500 model? ▼ The Sierra 2500 HD is built for heavier workloads, offering increased towing and payload capabilities compared to the 1500. It is ideal for drivers who need more strength and durability for work or larger trailers.

The GMC Sierra 2500 HD is designed for drivers who need serious capability — whether that’s towing trailers, hauling heavy payloads, navigating job sites, or combining daily driving with adventure. GMC organizes the 2500 HD into multiple trim levels, each with its own set of features, comfort upgrades, and capability enhancements. more Pro – The Work-Focused Base Trim The Pro trim is the Sierra 2500 HD’s entry-level model. It’s all about rugged capability and value, offering a solid suite of standard technology and capability. What you get: 6.6 L V8 gas engine standard (Diesel optional) Trailering package with hitch and electrical connections Wireless Apple CarPlay and Android Auto Best-in-class HD cargo bed volume Who it’s for: buyers who need a dependable heavy-duty truck for work and towing without spending on premium extras. SLE – Comfort and Convenience Added The next step up is the SLE, which brings in more comfort features while keeping up with capability. Upgrades over Pro might include: Larger digital displays Heated front seats Traction Select System with Tow/Haul mode Available 13 camera views Who it’s for: drivers who want everyday comfort without jumping all the way to luxury trims. SLT – Balanced Package for Daily Use The SLT trim builds on SLE with even more comfort, appearance touches and convenience features. Highlights: Heated and ventilated front seats (available) Enhanced trailering tech and capability options More refined interior materials Who it’s for: people who want a truck that’s capable on the worksite but also comfortable and well-equipped for daily driving. AT4 – Rugged and Ready for Off-Road The AT4 trim is all about off-road capability without giving up heavy-duty performance. It adds hardware and design elements perfect for tackling rough terrain. What sets AT4 apart: All-terrain tires and unique wheels Off-road suspension and Rancho shocks Jet Black interior with Kalahari accents Ventilated front seats Who it’s for: drivers who mix towing and hauling with trail miles and adventures. AT4X – Extreme Off-Road Performance The AT4X takes the AT4 concept even further with more advanced off-road hardware and premium features. Specialized upgrades include: Factory-installed suspension lift and Multimatic® DSSV dampers Rear electronic-locking differential 35" Goodyear Territory MT tires Massaging front seats Who it’s for: enthusiasts who want a heavy-duty truck that can tackle extreme trails and technical terrain. Denali – Luxury and Style Meet Capability The Denali trim moves the Sierra 2500 HD into premium territory with upscale styling and interior materials. Luxury features might include: 20" Ultra-bright machined aluminum wheels Authentic wood trim and premium leather Advanced driver assists and comfort tech Who it’s for: those who want a capable heavy-duty pickup with a refined, upscale experience. Denali Ultimate – The Peak of GMC Luxury At the top of the lineup is Denali Ultimate, the most refined and feature-packed Sierra 2500 HD. Top-tier touches include: Standard Duramax 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission Leather seats with heating/ventilation and massage 16-way power front seats 12-speaker Bose® Premium Series surround sound Extensive safety and convenience tech Who it’s for: buyers who want maximum capability and luxury in a heavy-duty pickup — a truck that’s as comfortable on long road trips as it is on a job site. Choosing the Right Sierra 2500 HD Work and utility first? Go with Pro or SLE. Comfort plus capability? SLT strikes a great balance. Off-road and adventure? AT4 and AT4X are built to roam. Luxury Maximizers? Denali and Denali Ultimate offer premium refinement. Each trim builds on the last, adding features and enhancements to fit a range of heavy-duty needs and lifestyles. We hope that you are now ready and well equipped to choose the perfect trim for your lifestyle. Sierra HD Collection Contact Us

When the job demands serious muscle, the GMC Sierra HD Max Trailering Package delivers strength, reliability, and confidence at every turn. Designed for drivers who tow heavy loads, haul equipment, or rely on their truck for demanding work, this package equips the Sierra HD with heavy-duty components engineered to perform under pressure. more Heavy-Duty Foundation You Can Trust At the core of the Max Trailering Package is the 3500 HD frame, providing the structural backbone needed for extreme workloads. This is paired with 3500 HD leaf springs and a 3500 HD shock package, which work together to improve load control, ride stability, and durability—especially when towing or hauling at maximum capacity. Supporting it all is a massive 12-inch rear axle, built to handle high torque and heavy trailer weights with confidence. The result is a truck that feels planted, controlled, and ready for real work. Serious Towing Capability With a gross vehicle weight rating (GVWR) of up to 11,200 lbs., the Sierra HD is built to manage the combined weight of the truck, passengers, cargo, and equipment when properly equipped. Whether you’re towing a large trailer or hauling heavy payloads, this package ensures the Sierra HD is up to the challenge. Gooseneck & 5th Wheel Ready The Gooseneck / 5th Wheel Prep Package is a standout feature for drivers who tow heavy trailers regularly. It includes: A factory-installed hitch platform designed to accept gooseneck or 5th wheel hitches A tray to store the hitch ball when not in use Stamped bed holes with protective caps for clean, precise hitch installation A box-mounted 7-pin trailer harness for easy electrical connections This factory prep means fewer modifications and a cleaner, more integrated towing setup. (Additional optional equipment may be required depending on your towing configuration.) Durable Spray-On Bedliner Protection To protect the truck bed from the wear and tear of daily use, the Max Trailering Package includes a spray-on bedliner with a black, textured, non-skid finish. Covers the entire bed surface below the side rails Protects the front box top rail, gauge hole plugs, and tie-downs Is chemically bonded to the bed for a permanent, watertight seal Helps minimize cargo shifting during transport The Sierra HD Max Trailering Package isn’t about extras—it’s about essentials for drivers who push their trucks to the limit. From its heavy-duty suspension and reinforced frame to its factory towing prep and bed protection, every feature is designed to make tough jobs easier and safer. Sierra HD Collection Contact Us

Being a truck owner means needing a vehicle that’s ready for any job. Yet most traditional tailgates only do one thing—and that leaves a lot of potential on the table. The GMC Sierra HD changes the game with its Six-Function MultiPro Tailgate. Join us as we break down each of its configurations and show how they work together to maximize functionality, capability, and everyday convenience. Six-Function Break Down Closed Position: In this traditional tailgate setting, the gate is fully upright—just like a standard truck tailgate. Its job is simple but essential: keeping your cargo securely inside the bed and preventing anything from sliding out during transport. Primary Gate Position: This is the classic tailgate-down setup. Lowering the gate gives you straightforward access to the bed, making it easy to load gear in or take it back out. Primary Load Stop Position: In this mode, a built-in load stop flips up and locks into place while the tailgate is lowered. It effectively extends the usable length of the bed, letting you haul longer items—like lumber or sheet goods—without worrying about them sliding out the back. Easy Access Position: With the tailgate lowered, you can release an additional section that swings down even farther. This brings the edge of the bed closer to you—about a foot—making it significantly easier to reach in and grab items without having to climb up or stretch as far. Full-Width Step: With the tailgate in the Easy Access position, you can fold down an integrated panel that creates a sturdy, full-width step. It’s rated to support up to 375 pounds, making it a reliable boost for climbing in and out of the truck bed. It can even double as a small bench whenever you need to take a quick break between tasks. Work Surface Position: With the main tailgate closed, you can fold down a dedicated inner panel to create a convenient work surface. It’s a perfect spot for setting tools, measuring materials, or organizing whatever you need to get the job done efficiently. The Sierra HD’s MultiPro Tailgate isn’t just a clever piece of engineering—it’s a genuinely useful tool that adapts to the way you work and play. With six distinct functions designed to improve access, increase capability, and boost convenience, it transforms the truck bed into a more versatile space than ever before. Whether you’re hauling materials for a project, loading up gear for a weekend adventure, or simply looking for smarter ways to get things done, the MultiPro Tailgate proves that the right features can make all the difference. Sierra HD Collection Contact Us

When the pavement ends, the GMC Sierra 2500 AT4 stands ready to take on whatever challenge lies ahead. Built for those who demand more than just power — but also precision, durability, and confidence on any terrain — the Sierra HD AT4 combines off-road capability with best-in-class towing strength. The Sierra 2500 AT4 is well equipped for any terrain with its 10.1” ground clearance, 20” all-terrain, blackwall tires, and high gloss black aluminum wheels. This powerhouse also has an Off-Road Suspension Package with twin-tube Rancho shocks, skid plates, automatic locking rear differential, and Hill Descent Control, which uses antilock braking to help maintain control. Despite its rugged capability and hardworking nature, the Sierra 2500 AT4 offers a surprisingly refined and comfortable interior experience for the driver. The Jet Black interior with Kalahari accents creates a bold look, complemented by premium leather seating surfaces. Heated and ventilated front seats, along with a heated steering wheel, ensure year-round comfort no matter the conditions outside. The Advanced technology of the Sierra 2500 AT4 enhances every drive, with convenient features like wireless charging and remote start, while the expansive 13.4-inch Infotainment System provides added confidence with HD Surround Vision that will show a comprehensive view around the vehicle, making every maneuver easier and safer. The Sierra 2500 AT4 delivers the power and capability to conquer tough jobs and rugged terrain, all while keeping every drive comfortable. It’s a truck built for those who expect more from their vehicle—strength when it counts and confidence in every mile. Sierra HD Collection Contact Us

When it comes to purchasing a Sierra HD, each engine option offers unique capabilities designed to suit different drivers’ needs. Let’s take a closer look at the key differences between the 6.6L V8 Gas Engine and the 6.6L V8 Duramax Turbo-Diesel Engine to help you decide which one is the best fit for you. more 6.6L Gas vs. 6.6L Duramax Turbo-Diesel The chart below shows a side by side comparison between the two different engine options. Type: 6.6 V-8 6.6L V-8 Duramax Turbo-Diesel Fuel Type: Regular Gasoline (87 Octane) Ultra-Low Sulfer Diesel and B20 Biodiesel Horsepower: 401 HP (299kW) @ 5200 RPM* 470 HP (350 kW) @ 2800 RPM* Torque: 464 lb-ft (629 Nm) @ 4000 RPM* 974 lb.-ft. (1,322 Nm) @ 1600 RPM* Emissions Control: Catalytic Converter, Three-Way Catalyst, Positive Crankcase Ventilation Cooled Exhast Gas Recirculation, Selective Catalytic Reduction, Diesel Particulate Filter, Intake throttle Displacement: 6564 CC (400 CI) 6604 CC (403 CI) Engine Orientation: Longitudinal Longitudinal Compression Ratio: 10.8:1 16.0:1 Valve Configuration: Overhead Valves Overhead Valves Valves per Cylinder: Two Four Valve Lifters: Hydraulic Roller Mechanical Roller Firing Order: 1-8-7-2-6-5-4-3 1-2-5-7-8-4-5-6-3 Bore x Stroke: 103.25 x 98.0 mm 103 x 99 mm Block: Cast Iron Cast Iron Cylinder Head: Cast Aluminum Cast Aluminum Intake Manifold: Composite Cast Aluminum Exhaust Manifold: Stainless Steel Cast Nodular Iron with Steel Pipe Extension Main Bearing Caps: Cast Nodular Cast Nodular Iron with Steel Pipe Extension Crankshaft: Forged Steel Forged Steel Camshaft: Billet Steel Steel Connecting Rod: Forged Powder Metal PM Iron *As tested in the Chevrolet Silverado Heavy Duty and GMC Sierra Heavy Duty. After looking over the table, you’ll notice that both engines deliver impressive performance, but they’re built for different priorities. The 6.6L V8 Gas Engine offers strong horsepower and smooth, consistent power for everyday driving and lighter towing needs. On the other hand, the 6.6L Duramax Turbo-Diesel stands out with its torque and efficiency—perfect for heavy-duty towing, hauling, and long-distance performance. No matter which you choose, the Sierra HD delivers the strength and dependability you can count on. Sierra HD Collection Engine Availability The standard or availability of these engines changes for the different trims of the Sierra HD. The chart below shows which of the two engines are either standard or available as an upgrade on each of the Sierra HD trims. Engine 6.6L V-8 Gas 6.6L V-8 Duramax Turbo-Diesel Trim: ✅ ✴️ PRO ✅ ✴️ SLE ✅ ✴️ SLT ✅ ✴️ AT4 ✅ ✴️ AT4X ✅ ✴️ DENALI ✅ ✴️ DENALI ULTIMATE ❌ ✅ ✅ = Standard ✴️ = Available ❌ = Not available After reviewing the Sierra HD engine comparison and availability charts, we hope you now feel more confident and informed about which engine best fits your driving needs. Whether you value the balanced strength and everyday versatility of the 6.6L V8 Gas Engine or the unmatched towing power of the 6.6L Duramax Turbo-Diesel, both options deliver the dependability that drivers expect from GMC. No matter which engine you choose, your Sierra HD is built to handle the toughest jobs with confidence and capability mile after mile. Sierra HD Collection Contact Us

End of Year Tax Savings - 2025 With the end of 2025 right around the corner, are you taking advantage of your tax savings opportunities for your business? Section 179 of the IRS tax code was created so that business owners can write off a portion of the cost of new or used vehicles. The One Big Beautiful Bill Act of 2025 (OBBBA) made a significant change to Section 179 as well as bonus depreciation. These changes, when used together, may allow businesses to deduct up to 100% of vehicle purchases. Now is a great time to expand your fleet as a business owner. To maximize your tax savings, it makes sense to also maximize the value of the vehicle you choose. The GMC Sierra HD delivers on both fronts, offering impressive tax benefits and top-tier capability. Power That Performs. Powered by a Duramax 6.6L Turbo-Diesel V8, the GMC Sierra HD is engineered for serious performance, delivering 470 horsepower and a massive 975 lb.-ft. of torque. Designed with towing in mind, this engine features an exhaust brake for enhanced control on descents, a powerful turbo vane actuator, and heavy-duty valve springs for added durability. When equipped with the available Max Trailering Package and the Duramax engine, the GMC Sierra 2500 HD Crew Cab can tow up to an impressive 21,870 lbs. Technology That Excels 12.3" Driver's Information Center - Essential information front and center at your wheel with easy visibility and high resolution. 13.4" Premium GMC Infotainment System - Built in Google compatibility and voice activated technology that provides a seamless way to customize entertainment. 15" Head-Up Display - Important information like your speed, low fuel warning, off road inclinometer, and mobile alerts right in front of you, so you don't have to take your eyes off the road. ProGrade Trailering System - Advanced set of available technologies that streamline the hitching and towing process with up to 14 available camera angles using transparent trailer view that allows the driver to "see through" the trailer as if it wasn't there. (Displays not available on Pro) Every GMC Sierra 2500 HD and 3500 HD includes active safety driver assistance tech that helps aid in driving and trailering. Safety Features: Forward collision Alert Following distance indicator Automatic emergency braking lane departure warning Buckle to drive Rear view mirror camera Exterior That Shines. The GMC Sierra HD Denali will have heads turning with its chrome grille, front bumper and fascia. The lights in the HD are just as striking with animated sequences to help enhance the exteriors overall design, but the real bonus in the Sierra HD's exterior is its Six-Function Multi-Pro Tailgate. Six-Function Multi-Pro Tailgate Features: Load stop to prevent items from sliding out of the bed Fold-Down inner gate for easy access Inner gate can fold into a full-width step, capable of holding up to 375 lbs Inner gate load stop to prevent second-tier items from sliding out of the bed Disable the inner gate to prevent it from being opened when a hitch or other equipment is attached The opened inner gate provides a spacious work surface Available Integrated MultiPro Tailgate Audio System so you can take music outdoors Interior That Comforts. The Sierra HD Denali Ultimate might have an aggressively powerful look on the outside, but on the inside, it's luxury, outfitted with a sleek Alpine Umber interior featuring full-grain leather seating, plaited contrast stitching, and embossed and laser-etched topographical map patterns of its namesake’s mountain summit. With the end of 2025 fast approaching, now is the time to take full advantage of available tax deductions. Adding one or more vehicles to your fleet can help offset business expenses - and the GMC Sierra HD is a smart choice. It’s built for capability, engineered for performance, and ready to deliver serious value for your business, both on the job site and on your bottom line. SIERRA HD INVENTORY 🔎

The 2025 GMC Sierra 2500HD is a BEAST on the road. It’s hard to miss it, easy to spot with the bold presence it brings to the road, job site, field, and campsite. There’s so many ways to utilize the Sierra HD, but even more ways to sit back and enjoy the ride here. At Lighthouse, we like the best of both worlds. Let’s dive in! 2025 GMC Sierra HD Towing Capacity When choosing a Sierra HD, the engine under the hood makes the biggest change in towing performance. Here’s how the gas engine compares to the diesel engine when deciding which truck will give you the towing capacity you need – 6.6L V8 Gasoline Conventional (Ball Hitch): 14,500 – 16,000 lbs. 5th Wheel / Gooseneck: 18,200 – 18,700 lbs. What can change this range? Cab Style & Bed Length: Regular Cabs tend to offer the highest tow ratings, while Double and Crew Cabs can be slightly lower due to added weight. Drive Type: 2WD models usually tow a little more than 4WD because they’re lighter. Trim Packages: AT4, AT4X, and Denali models may have reduced capacities compared to standard trims due to off-road hardware or added luxury features. Duramax 6.6L Turbo-Diesel V8 Conventional (Ball Hitch): 14,500 – 20,000 lbs. 5th Wheel / Gooseneck: 17,700 – 22,390 lbs. What affects the range? Cab Style & Bed Length: Just like the gas engine, Regular Cab Long Beds are usually at the top of the towing spectrum. Drive Type: 2WD versions typically offer higher tow ratings than 4WD. Trim Packages: NHT (Max Tow) Package boosts capacities significantly, pushing ball hitch ratings up to 20,000 lbs. and gooseneck up to 22,390 lbs. Off-Road (AT4, AT4X, AEV) and luxury trims (Denali, Denali Ultimate) often reduce max towing slightly because of added weight and equipment. Key takeaways The Gas V8 engine tops out just under 19,000lbs max towing capacity. The Duramax Diesel has the highest pulling power, especially with the NHT Max Tow Package, topping out at 22,000 lbs. When deciding between trims and engines, keep in mind, the cab/bed configuration, drive type, and trim package all factor into the max towing capacity. Engine Hitch Type Towing Range What Influences It 6.6L V8 Gasoline Conventional (Ball Hitch) 14,500 – 16,000 lbs. Cab/bed size, 2WD vs. 4WD, trim weight 5th Wheel / Gooseneck 18,200 – 18,700 lbs. Cab/bed size, drivetrain, trim (AT4/Denali slightly lower) 6.6L Duramax Turbo-Diesel V8 Conventional (Ball Hitch) 14,500 – 20,000 lbs. Cab/bed size, 2WD vs. 4WD, trim weight, NHT Max Tow Package 5th Wheel / Gooseneck 17,700 – 22,390 lbs. Cab/bed size, drivetrain, off-road or luxury trims may reduce, NHT boosts max capacity We hope this has been a great resource for towing capacity, but if there’s any further questions you have, our sales team in Morton, IL is willing and equipped to answer your questions. Further, if you’re ready to view our Sierra HD collection here at Lighthouse, check it out here. We have a great selection and are the Sierra HD for Bloomington, Peoria, Lacon, Lincoln, and the Central Illinois area! Don't miss out, experience the Lighthouse Difference Today. Ask Us A Question Sierra HD Collection 2025 GMC Sierra HD Tech Now that you’ve found the right engine and options for your towing needs, now it’s time to get comfortable in your Sierra HD. Here’s the best of the tech in the 2025 GMC Sierra HD – Up to 14 Available Camera Views, including transparent trailer view Available best-in-class 16-way power front seats with massage feature Available adapative Cruise Control with Trailering Best-in Class crew cab front head and leg room 13.4” Diagonal Center Touchscreen 15” diagonal multicolor head-up display 12.3” diagonal color drive information center 6-function Multipro tailgate Sierra HD Pro Safety Features like Forward Collision Alert, Lane Departure Warning, Front Pedestrian Braking, Automatic Emergency Braking, and so many more! With all of the technology, there’s lots of other accessories you’re probably looking to add onto your Sierra HD from Lighthouse in Morton, IL. Are you ready to accessorize your truck? Let’s get started with these standard, frequently-added accessories to your truck – Assist Steps/Running Boards Truck Bed Covers Blacked-out or Illuminated Emblems Trailering Products Exterior Mirror Covers View all available accessories in the truck shop - https://accessories.gmc.com/categories/truck-shop View Sierra HD Collection Shop Accessories Ask Us A Question