The 2020 GMC Sierra 2500HD is a heavy-duty pickup truck, part of GMC's formidable lineup, known for its robust capabilities. This generation, introduced for the 2020 model year, features a bold, distinctive body style that emphasizes strength and utility. Available in various trims like Sierra, SLE, SLT, AT4, and Denali, it offers a wide pricing range from approximately $38,000 to over $70,000 when new. It stands out for its exceptional towing and hauling capacities, coupled with a premium interior, making it a popular choice for both demanding work and upscale personal use.
The Good
The 2020 GMC Sierra 2500HD offers immense practical advantages, boasting powerful engine options that ensure superior towing and hauling performance. Its reliability is a strong point for practical buyers, built for demanding tasks. Emotionally, the upscale design, comfortable interior, and advanced technology provide a sense of luxury and capability, making long hauls less strenuous. It delivers significant value through its blend of heavy-duty utility and refined experience, appealing to those seeking both brute force and sophisticated comfort.
The Bad
When considering the 2020 GMC Sierra 2500HD, potential weaknesses to watch out for include its relatively large size, which can make maneuverability challenging in tight spaces. Fuel efficiency, while improved for a heavy-duty truck, remains a significant cost factor. Some owners have also noted the potential for higher maintenance and repair costs compared to lighter-duty vehicles, typical for this class of truck. The infotainment system, while functional, might not feel as cutting-edge as some rivals.
2020 GMC Sierra 2500HD: Quick Overview
The 2020 GMC Sierra 2500HD is offered with robust powertrain options and a range of features designed for heavy-duty work and comfort:
- Engine Options:
– 6.6L V8 gasoline engine
– 6.6L Duramax Turbo-Diesel V8 engine - Horsepower:
– 6.6L Gas V8: 401 hp @ 5200 rpm
– 6.6L Duramax Diesel V8: 445 hp @ 2800 rpm - Torque:
– 6.6L Gas V8: 464 lb-ft @ 4000 rpm
– 6.6L Duramax Diesel V8: 910 lb-ft @ 1600 rpm - Transmission:
– 6-speed automatic (gas)
– Allison 10-speed automatic (diesel) - Fuel Economy:
– EPA does not require or provide official fuel economy ratings for heavy-duty trucks. Owners typically report averages ranging from 12-17 MPG depending on engine, load, and driving conditions. - 0-60 Times:
– While not typically a priority for HD trucks, estimates for the Duramax diesel are around 7.0-7.5 seconds, with the gas engine slightly slower. - Towing Capacity:
– Max Conventional Towing: Up to 18,500 lbs (diesel)
– Max Fifth-Wheel/Gooseneck Towing: Up to 18,500 lbs (diesel); specific configurations can reach higher. - Trim-Level Features:
– Sierra: Basic work truck, vinyl or cloth seats, essential connectivity.
– SLE: Adds more comfort with power windows/locks, larger infotainment, keyless entry.
– SLT: Upscale features like leather seats, advanced infotainment, trailering package, heated seats/steering wheel.
– AT4: Off-road focused with lifted suspension, Rancho shocks, skid plates, all-terrain tires, unique styling.
– Denali: Premium luxury trim with exclusive grille, perforated leather seating, open-pore wood trim, Bose audio, advanced safety features, larger infotainment screen, head-up display. Features vary by configuration (2WD/4WD, cab/bed).
2020 GMC Sierra 2500HD Specifications
Vehicle Information
| Year | 2020 |
| Make | GMC |
| Model | Sierra 2500HD |
| Trim | - |
| Style | Double Cab LB Rear-Wheel Drive |
| Type | Truck |
| Category | Medium Truck |
Manufacturing Details
| Made In | United States |
| Manufacturing City | FLINT |
Dimensions
| Doors | 4-Door |
| Curb Weight | - |
| Gross Vehicle Weight Rating | 10000 pounds |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 6.6-L V-8 |
| Engine Size | 6.6L |
| Engine Cylinders | 8 |
| Transmission | 6-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 6-Speed |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
Vehicle History Report
Vehicle
Specifications
Specifications
Ownership
History
History
All History
Events
Events
NMVTIS Title
History Check
History Check
Salvage/Rebuilt
Check
Check
Accident
Check
Check
Theft
Check
Check
Open Lien
Check
Check
Past Sale
Listings
Listings
Safety
Recalls
Recalls
Odometer
Check
Check
Market Price
Analysis
Analysis
What Problems Does the 2020 GMC Sierra 2500HD Have?
The 2020 GMC Sierra 2500HD, while generally robust, has had a few frequently reported problems and recalls. A significant recall involved an issue with the brake pedal pivot nut on certain models, which could loosen and cause the pedal to become inoperative, increasing crash risk. Another recall addressed potential issues with seat belt retractors that might not properly restrain an occupant during a crash. There was also a recall related to the fuel tank selector valve on some earlier 2020 models, potentially leading to fuel leaks. Owners have occasionally reported minor issues like infotainment system glitches or connectivity problems, but these are often resolved with software updates. Some early production models had reports of issues with the power steering assist or specific electrical gremlins, although these were not widespread and often addressed under warranty. Long-term reliability concerns primarily revolve around the complexity of modern diesel emissions systems, which, while necessary, can sometimes lead to expensive repairs if not properly maintained. The Allison transmission and Duramax engine generally have excellent reputations for durability, but consistent maintenance is crucial for optimal longevity and to avoid costly repairs down the line. Overall, the 2020 model year had a relatively smooth launch, with major powertrain components proving reliable.
How long will the 2020 GMC Sierra 2500HD last?
Based on owner data and maintenance habits, a well-maintained 2020 GMC Sierra 2500HD can reliably achieve 200,000 to 300,000 miles, with many Duramax diesel owners reporting even higher mileage. Regular servicing, including oil changes, fuel filter replacements, and transmission fluid services, is paramount. Long-term durability is a strong point, especially for the powertrain. However, over time, components like suspension bushings, universal joints, and emissions system sensors may require attention. Rust on frames and body panels can also become a weakness in regions with harsh winters or road salt if not proactively managed. With diligent care, these trucks are built to last for many years of heavy-duty service.
What Technology & Safety Features are Included?
The 2020 GMC Sierra 2500HD offers a comprehensive suite of built-in technology, entertainment, driver-assistance, and safety features. Standard on most trims is the GMC Infotainment System, typically with an 8-inch touchscreen (a 7-inch is standard on base models), Apple CarPlay, Android Auto, and a Wi-Fi hotspot. Upper trims like SLT, AT4, and Denali upgrade to navigation, Bose premium audio, and a larger, more advanced interface with integrated apps. Driver-assistance features include an available HD Surround Vision camera system, especially useful for trailering and parking, featuring up to 15 camera views. Other optional safety features include Forward Collision Alert, Lane Departure Warning, Front and Rear Park Assist, Rear Cross Traffic Alert, and Blind Zone Alert. The ProGrade Trailering System is a standout, offering smart trailer integration, an in-vehicle trailering app, and a trailer tire pressure monitoring system. Safety is enhanced with six standard airbags, stability control, and traction control. While the NHTSA typically doesn't provide full crash-test ratings for heavy-duty trucks due to their size and weight, GMC builds the Sierra 2500HD with a robust frame and advanced safety systems designed to protect occupants in the event of a collision.
What Colors Options are Available?
We’re working on this section!
In the meantime, feel free to explore the other sections for more content.
In the meantime, feel free to explore the other sections for more content.
2020 GMC Sierra 2500HD Prices and Market Value
When new, the 2020 GMC Sierra 2500HD had a broad pricing range. Base models like the Sierra started around $38,000, while well-equipped Denali trims could easily exceed $70,000, and fully optioned models approached $80,000. For the current used market, prices have remained strong due to high demand for heavy-duty trucks. A used 2020 Sierra 2500HD can range from approximately $35,000 for a base model with higher mileage to $60,000 or more for a low-mileage Denali. Depreciation is generally lower than for half-ton trucks, especially for diesel models, which hold their value exceptionally well. Factors affecting resale value include mileage, condition, trim level (Denali and AT4 command premiums), engine choice (Duramax diesel adds significant value), and optional features like advanced trailering packages or specialized equipment. The robust nature and utility of these trucks ensure a slower depreciation curve compared to many other vehicle segments.
2020 GMC Sierra 2500HD Cost of Ownership
Long-term ownership costs for the 2020 GMC Sierra 2500HD can be significant. Insurance premiums are generally higher due to the vehicle's cost and repair expenses. Fuel costs will be substantial; while the Duramax diesel offers better efficiency than the gas V8, both consume a lot of fuel, and diesel fuel itself is often more expensive. Maintenance is crucial and can be costly, especially for the diesel engine which requires specific fluids, filters (like fuel filters), and emissions system upkeep. Repair costs can also be high for heavy-duty components and specialized systems. For instance, replacement tires are large and expensive. Overall, the 2020 GMC Sierra 2500HD is a costly vehicle to own, reflecting its heavy-duty capabilities and robust construction. It is not an economical choice for those not requiring its significant utility.
2020 GMC Sierra 2500HD Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2020 GMC Sierra 2500HD Insurance
Insurance for a 2020 GMC Sierra 2500HD is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2020 GMC Sierra 2500HD Compare to Other Truck?
The 2020 GMC Sierra 2500HD stacks up strongly against its key rivals: the Ford F-250 Super Duty and the Ram 2500. In performance, the Sierra 2500HD's Duramax diesel and Allison transmission combo is highly competitive, offering excellent power and smooth delivery, on par with Ford's Power Stroke and Ram's Cummins. Ford often leads in maximum conventional towing, while Ram is known for its class-leading ride comfort, thanks to coil-spring or air suspensions. The Sierra generally finds a balance between power, capability, and refinement. In terms of features, all three offer advanced trailering tech, luxury interiors on top trims, and comprehensive safety suites. The Sierra's MultiPro Tailgate is a unique offering. Reliability is strong across the board for all three, though specific model year issues can arise. The Duramax and Cummins engines have legendary reputations. Price-wise, they are all in a similar premium heavy-duty segment, with top trims easily exceeding $70,000. For an alternative that prioritizes ride comfort, the Ram 2500 is a strong contender. For raw towing numbers, the Ford F-250 often excels. The Sierra 2500HD offers a compelling blend of premium aesthetics, strong capability, and advanced trailering tech, positioning it as a refined yet powerful workhorse.
Final Verdict: Is the 2020 GMC Sierra 2500HD a Good Truck?
The 2020 GMC Sierra 2500HD is an ideal vehicle for individuals or businesses requiring significant towing and hauling capabilities, without compromising on comfort and upscale features. It's particularly well-suited for those who frequently pull large trailers, operate fifth-wheel setups, or carry heavy payloads for work or extensive recreational activities. It's worth buying for those who need a true heavy-duty truck and appreciate a more premium interior and unique features like the MultiPro Tailgate. Considering it used often provides excellent value, especially for diesel models, as they hold their value well and offer long-term durability if maintained. Look for well-maintained SLT, AT4, or Denali trims to balance capability with luxury. Avoid if you merely need a light-duty truck, as its size and ownership costs are overkill.
Cathleen V
Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.