2025 GMC Sierra 2500 HD Model Review | Engines, Towing, & Interior
Unyielding capability defines the 2025 GMC Sierra 2500 HD, a heavy-duty pickup truck engineered for those who demand more from every drive. Its robust design, potent strength, and ability to tow up to 22,390 pounds make it a trusted partner for work and play alike. Continue reading to explore this full 2025 Sierra 2500 HD review from the team at W-K Chevrolet Buick GMC for more information about specs, performance, and configurations. Don’t forget to visit our guide highlighting the standard features of the Sierra 2500 HD trims to discover your ideal match.
Explore our new Sierra 2500 HD inventory and find a pickup in a configuration that matches your needs. Schedule a test drive at our GMC dealership in Sedalia, MO, to experience its power and capability firsthand. If you have any questions, our team is available online or by phone at (660) 826-8320 to assist you.
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2025 GMC Sierra 2500 HD Engines & Towing Capacity
Endurance and raw strength embody the 2025 GMC Sierra 2500 HD, where powerful V8 engines set the tone for heavy-duty performance. Choose from the standard 6.6L V8 gas engine or upgrade to the available Duramax® 6.6L turbo diesel V8, each designed to deliver exceptional capability for demanding jobs. With a maximum available towing capacity of 22,390 pounds, this truck is built to handle tough hauls and long days on the road. An Allison® ten-speed automatic transmission, available with and without an integrated power take-off system, and advanced two-wheel (rear-wheel) and four-wheel drivetrains further enhance confidence behind the wheel.
Learn more about the Sierra 2500 HD engines in our detailed guide, and see general engine highlights in the following table:
| Engine | 6.6L gas V8 | Duramax 6.6L turbo diesel V8 |
|---|---|---|
| Horsepower | 401 HP | 470 HP |
| Torque | 464 lb.-ft. | 975 lb.-ft. |
| Drivetrain | 2WD / 4WD | |
| Transmission | Ten-speed automatic | |
2025 GMC Sierra 2500 HD Payload & Towing
The 2025 GMC Sierra 2500 HD delivers the muscle needed for tough workdays with its remarkable towing and payload capacities. Whether you’re hauling materials, pulling a trailer, or transporting gear, this truck is engineered to handle demanding loads with ease. Helpful trailering features like an integrated trailer brake controller, available trailer cameras, and advanced monitoring systems make every task more manageable.
View the 2025 Sierra 2500 HD payload and towing capacities in the following table:
| Cab Size | Regular | Double | Crew |
|---|---|---|---|
| Max. Payload Capacity | 4,064 lbs. | 3,788 lbs. | 3,859 lbs. |
| Max. Payload Configuration | Long bed, 2WD, and Duramax 6.6L turbo diesel V8 engine | Long bed, 4WD, and 6.6L gas V8 engine | Standard bed, 2WD, Duramax 6.6L turbo diesel V8 engine, Max Trailering Package, and 18- or 20-in. wheels and tires |
| Max. Conventional Towing Capacity | 14,500 lbs. | 17,900 lbs. | 20,000 lbs. |
| Max. Conventional Towing Configuration | 2WD or 4WD | Long bed, 2WD, and Duramax 6.6L turbo diesel V8 engine | 2WD or 4WD, Duramax 6.6L turbo diesel V8 engine, Max Trailering package, and 18- or 20-in. wheels and tires |
| Max. Fifth-Wheel/Gooseneck Towing Capacity | 22,390 lbs. | 18,600 lbs. | 21,870 lbs. |
| Max. Fifth-Wheel/Gooseneck Towing Configuration | 2WD, Duramax 6.6L turbo diesel V8 engine, Max Trailering Package, Gooseneck/Fifth-Wheel Prep Package, and gooseneck/fifth-wheel hitch | 2WD, 6.6L gas V8 engine, Gooseneck/Fifth-Wheel Prep Package, 18- or 20-in. wheels and tires, and gooseneck/fifth-wheel hitch | Long bed, 2WD, Duramax 6.6L turbo diesel V8 engine, Max Trailering package, Gooseneck/Fifth-Wheel Prep Package, 18- or 20-in. wheels and tires, and gooseneck/fifth-wheel hitch |
2025 GMC Sierra 2500 HD Cab & Bed Options
The 2025 GMC Sierra 2500 HD adapts to your needs with cab and bed options that balance comfort, utility, and capability. Depending on your desired trim, select from a regular, double, or crew cab and a long or standard bed length, each designed to provide the right amount of space for work or daily life. Certain configurations offer seating for up to six passengers, offering plenty of room to bring along your crew or family.
View the 2025 Sierra 2500 HD cab size and seating capacities in the following table:
| Cab Size | Regular | Double | Crew |
|---|---|---|---|
| Bed Options | Long (98 in.) | Standard (82.2 in.) or long (98 in.) | Standard (82.2 in.) or long (98 in.) |
| Seating Capacity | Three | Six | Five or six |
| Legroom (Front/Rear) | 44.5 in. / - | 44.5 / 35.2 in. | 44.5 / 43.4 in. |
| Hip Room (Front/Rear) | 60.9 in. / - | 61.1 / 60.2 in. | 61.1 / 60.2 in. |
2025 GMC Sierra 2500 HD Interior Design & Technology
Designed to support even the busiest days, the interior of the GMC Sierra 2500 HD surrounds you with comfort and smart convenience. Premium materials and meticulous craftsmanship create an upscale atmosphere that feels both durable and inviting. Modern amenities, such as available heated and ventilated seats and dual-zone automatic climate control, help keep every drive relaxing. Advanced connectivity features, including a large 13.4-inch infotainment display with smartphone integration, keep you seamlessly connected on the go. An available Bose® audio system and MultiPro™ tailgate audio system by Kicker® deliver rich, immersive sound to enhance every journey.
Available design and comfort features include:
- Power sunroof
- Vinyl, cloth, or leather seat upholstery
- Front 40/20/40-split bench seat or bucket seats
- Heated, ventilated, 16-way power front outboard seats with massage
- Heated rear outboard seats
- 60/40 split-folding rear bench seat (double and crew cab)
- Heated steering wheel
- Single-zone manual or dual-zone automatic climate control
- Auto-dimming rearview mirror
- Up-level rear seat with storage package
- Universal home remote
Available audio and connectivity tech includes:
- 15-in. head-up display
- 3.5- or 12.3-in. driver information center
- 7- or 13.4-in. infotainment touchscreen
- Two- or six-speaker audio system, or Bose seven- or 12-speaker sound system
- MultiPro tailgate audio system by Kicker
- Google built-in
- Wireless Apple CarPlay® and Android Auto™
- SiriusXM® Satellite Radio capability
- Wi-Fi® hotspot capability
- Wireless charging
- Cab and bed 120V power outlets
- Rear camera mirror
2025 GMC Sierra 2500 HD Exterior Design
The 2025 GMC Sierra 2500 HD makes an unmistakable statement with its bold proportions and confident design. Distinctive exterior elements, including premium LED headlamps and a prominent grille, emphasize its commanding character. Added functionality comes from features like a standard CornerStep rear bumper, trailering mirrors, and the available MultiPro tailgate to support both work and everyday use.
Available exterior features include:
- 17-, 18-, and 20-in. wheels
- Front recovery hooks
- Animated LED projector headlamps
- LED daytime running lamps and fog lamps
- Rainsense™ automatic windshield wipers
- Heated, power-adjustable, power-folding vertical trailering mirrors with auto-dimming upper glass
- Fixed or power-retractable side assist steps
- Power sliding rear window
- Side bed step
- Cargo area LED lighting
- Spray-on bed liner
- 12 cargo tie-downs
- CornerStep rear bumper
- Six-function GMC MultiPro tailgate
2025 GMC Sierra 2500 HD Safety Features
The 2025 GMC Sierra 2500 HD elevates peace of mind with an array of safety and driver assistance technologies, including multiple available camera views. The Sierra HD Pro Safety suite of systems is standard, providing you with enhanced on-road awareness. Up to 13 unique camera angles, such as the transparent trailer view and HD surround vision, and the ProGrade trailering system are available, providing a clearer perspective for towing and maneuvering in tight spaces.
Available safety and driver assistance features include:
- Sierra HD Pro Safety
- Forward collision alert
- Following distance indicator
- Front pedestrian braking
- IntelliBeam® automatic high beams
- Lane departure warning
- Buckle to Drive technology
- Automatic emergency braking
- ProGrade trailering system
- Hitch guidance with hitch view
- In-vehicle trailering app
- Adaptive cruise control
- Bed view camera
- Front and rear park assist
- HD rear vision camera
- HD surround vision
- Rear cross-traffic alert
- Safety alert seat
- Trailering camera provisions
- Trailer side blind zone alert
Available camera views include:
- Transparent trailer view
- Hitch view
- Cargo bed view with zoom view and hitch guidelines
- Front camera view
- Rear camera view
- Surround view
- Front top-down view
- Rear top-down view
- Front side view
- Rear side view with trailer biasing
- Rear trailer view with guidelines and trailer angle indicator
- Inside trailer view
- Picture-in-picture view
2025 GMC Sierra 2500 HD Colors Available
- Summit White
- Onyx Black
- Sterling Metallic
- Cardinal Red
- Volcanic Red Tintcoat
- Downpour Metallic
- Thunderstorm Gray
- Titanium Rush Metallic
- White Frost Tricoat
2025 GMC Sierra 2500 HD Trims Available
- Pro $48,495*
- SLE $55,395*
- SLT $66,895*
- AT4 $73,195*
- Denali $76,095*
- AT4X $85,395*
- Denali Ultimate $95,495*
Test Drive the New Sierra 2500 HD in Sedalia, MO
Browse the selection of new GMC Sierra 2500 HD trucks in our inventory. When you've located a model in your preferred configuration with the power you desire for your busy days, schedule a test drive at our GMC dealership in Sedalia, MO, to experience its capability and features firsthand. For any questions, our team is ready to assist you — send us a message online or call us at (660) 826-8320.
May not represent actual vehicle. (Options, colors, trim and body style may vary)
The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.