St George Auto Gallery

1081 E 700 S, Saint George, UT 84790
4.5
4.5 out of 5 stars

Used 2015 GMC Sierra 2500HD SLT

181,164 miles
For Sale:$51,220
Estimated payment:$1,161/mo.
$0 trade-in, 10% down payment, 48 months, Great credit score

Value ChartA visual chart indicating the fair price range is between $24,800 and $29,200, while the current price is $51,220.$24,800 - $29,200$51,220
  • Priced at $51,220, this vehicle is $22,020 above the high end of its fair market value of $29,200.

  • The current fair market price range is between $24,800 to $29,200.

  • It has 181,164 miles, which is 18,864 (12%) above the median mileage of 162,300.

Note: This is an estimate based on a variety of factors (experimental feature). It is intended to provide a fair market value range to help guide your buying decision.

View Full Value Report
  • Truck
  • Pickup
  • Crew Cab
  • Heavy Hauler
  • Extended Front Legroom
  • Condition
    Used
  • Mileage
    181,164miles
  • Aggregate Ratings
    3.6
    3.6 out of 5 stars
  • Generation
    3(2014 - 2019)
  • Trim
    SLT
  • Drivetrain
    4X4
  • Transmission
    6-Speed Shiftable Automatic
  • Size Segment
    Heavy Duty
  • Doors
    4
  • Max Seating
    6
  • Max Towing Capacity
    13,000lbs.
  • Ground Clearance
    9.7inch
  • NHTSA Safety Ratings
    4
    4 out of 5 stars
  • Final Assembly Point
    Flint, Michigan
  • VIN
    1GT12ZE86FF653391

Engine6.6L V8 Diesel 397hp

  • Fuel Type:Diesel
  • Max Horsepower:397 hp @ 3000 rpm
  • Max Torque:765 ft.lbf @ 1600 rpm
  • Brand:Duramax
  • Displacement:6.6liters
  • Block Type:V
  • Cylinders:8
  • Aspiration:Turbo
  • Fuel Induction:Common Rail Direct Injection
  • Redline:3,000rpm
  • Oil Capacity:9.5liters
  • Cam Type:OHV
  • Stroke:3.9
  • Bore:4.06
  • Valves:32

Message from the seller

Looking for a clean, well-cared for 2015 GMC Sierra 2500HD available WiFi? This is it. Sophistication & understated luxury comes standard on this GMC Sierra 2500HD available WiFi SLT. Well-known by many, the Sierra 2500HD available WiFi has become a household name in the realm of quality and prestige. At home in the country and in the city, this 2015 4WD GMC Sierra 2500HD available WiFi SLT has been wonderfully refined to handle any occasion. Smooth steering, superior acceleration and a supple ride are just a few of its qualities. This is about the time when you're saying it is too good to be true, and let us be the one's to tell you, it is absolutely true. More information about the 2015 GMC Sierra 2500HD available WiFi: The GMC Sierra HD derives a lot of value from being extremely customizable. In its most basic form, the Sierra HD is a simple work truck, albeit an extremely capable one. With a base price of around $32,000, it's affordable enough that owners will feel comfortable using the truck in the utilitarian way it was intended. However there is plenty available beyond that, should buyers want something more upscale. Denali editions start at around $48,000 and offer plenty of luxury for those who want a truck that can both work hard and coddle its occupants. Interesting features of this model are optional dual-rear wheel setup, Many configuration possibilities, available luxury options, and high towing capacity

* Based on opinions and should be considered as general guidance only.

  • Reliability (4)
    4 out of 5 stars
    GMC trucks are generally known for their durability, and the 2015 Sierra 2500HD is no exception. With proper maintenance, these trucks tend to be very reliable for heavy-duty use.
  • Maintenance (3)
    3 out of 5 stars
    Maintenance costs can be higher than for a light-duty vehicle due to the heavy-duty components. However, parts are readily available, and many common issues are well-documented, making routine upkeep manageable.
  • Technology (3)
    3 out of 5 stars
    Technology features are decent for its time, including an infotainment system with basic connectivity. However, it lacks some of the more advanced driver-assistance systems and modern interface elements found in newer trucks.
  • Comfort (4)
    4 out of 5 stars
    The SLT trim provides a comfortable and well-appointed cabin, with supportive seats and a quiet ride for a heavy-duty truck. Road noise can be present on rougher surfaces, but overall it's a pleasant place to be.
  • Dynamics (4)
    4 out of 5 stars
    The 2015 GMC Sierra 2500HD SLT offers robust performance for towing and hauling, with a powerful engine and capable suspension, though it can feel a bit heavy and less agile in everyday driving.

  • Seating:

    • Seating Rows:2
    • Standard Seating:6
    • Max Seating:6
    • Leg Room (front):45.3in.
    • Leg Room (rear):40.9in.
  • Measurements:

    • Width:80.5in.
    • Ground Clearance:9.7in.
  • Wheels & Tires:

    • Tire:LT265/70R18E
  • Performance:

    • Towing Capacity:13,000lbs
    • Max Towing Capacity:13,000lbs
  • Fuel Tank:

    • Fuel Tank Volume:36gallon

2015 GMC Sierra 2500HD

The 2015 GMC Sierra 2500HD is a formidable heavy-duty pickup truck built for serious work and towing. It offers robust performance, a comfortable and well-appointed interior, and the legendary capability expected from the Sierra HD lineup. This model year brought a significant redesign, making it a compelling choice for those needing a truck that can handle demanding jobs.

Highlights

  • Engine Options:

    • 6.0L Vortec V8: This gasoline engine provides ample power for everyday hauling and towing needs. It's a reliable workhorse known for its stout performance.
    • 6.6L Duramax Turbo-Diesel V8: The star of the show for heavy-duty applications. This diesel engine delivers exceptional torque, making it ideal for towing large trailers, fifth-wheels, and goosenecks with ease. It's renowned for its pulling power and efficiency under load.
  • Safety Features:

    • StabiliTrak Stability Control: Helps maintain control of the vehicle during challenging driving conditions, especially when towing, by automatically detecting and reducing skidding.
    • Trailer Sway Control: Works in conjunction with StabiliTrak to detect and mitigate trailer sway, providing a safer towing experience.
    • Hill Start Assist: Prevents the truck from rolling backward when starting on an incline, crucial for hitching and unhitching trailers.
    • Rear Vision Camera: Aids in backing up, especially when connecting to trailers, improving visibility and safety.
    • Available Forward Collision Alert and Lane Departure Warning: These advanced driver-assistance systems can help prevent accidents by alerting the driver to potential hazards.
  • Trim Summary:

    • Sierra: The base trim offers essential features and robust capability, making it a no-nonsense work truck.
    • SLE: Steps up with more comfort and convenience features, including upgraded interior materials, power-adjustable features, and enhanced infotainment.
    • All-Terrain (2500HD Specific): Designed for those who venture off the beaten path, this trim adds unique styling cues, off-road suspension enhancements, and all-terrain tires for increased capability in rougher conditions.
    • Denali: The premium offering, the Denali boasts luxurious interior appointments, advanced technology, and distinctive exterior styling, providing a refined experience for a heavy-duty truck.
  • Other Notable Aspects:

    • Strong Towing and Payload Capacity: The Sierra 2500HD is engineered to handle substantial loads, making it a go-to choice for contractors, farmers, and RV enthusiasts.
    • Comfortable and Quiet Ride: Despite its heavy-duty nature, the 2015 Sierra 2500HD offers a surprisingly comfortable and composed ride, even when unloaded, thanks to its well-tuned suspension.
    • Spacious and Functional Interior: The cabin is designed for practicality and comfort, with ample storage solutions and user-friendly controls. Higher trims offer premium materials and advanced infotainment systems.
    • Distinctive Exterior Styling: The 2015 model features a bold and aggressive front-end design that clearly communicates its heavy-duty capabilities.

What to Expect

Ownership of a 2015 GMC Sierra 2500HD is generally characterized by its unwavering capability and robust build quality. You can expect this truck to be a dependable partner for demanding tasks. Maintenance will be more substantial than a light-duty truck, with larger tires, brakes, and more robust engine components. Regular oil changes, filter replacements, and fluid checks are crucial, especially for the Duramax diesel engine, where following the recommended service intervals for diesel-specific fluids and filters is paramount.

Insurance costs will likely be higher than for a smaller vehicle due to the truck's size, weight, and higher replacement value, especially if it's equipped with the Duramax diesel engine and higher trim levels. Fuel economy, particularly with the diesel engine, will be better than the gasoline V8 when towing heavy loads, but in everyday driving, expect fuel consumption to be higher than smaller trucks.

Potential Considerations

  • Diesel Engine Maintenance Costs: While the Duramax diesel is incredibly capable, its maintenance can be more expensive than the gasoline engine. Specific diesel fuel filters, exhaust fluid (if equipped with DEF, though less common on the '15), and potential for more complex repairs down the line are factors to consider.
  • Ride Comfort When Unloaded: While improved for its class, the heavy-duty suspension can still result in a firmer ride when the truck is not carrying a load or towing.
  • Maneuverability: The sheer size of the 2500HD can make it less agile in tight urban environments or crowded parking lots compared to smaller trucks.
  • Infotainment System Maturity: While functional, the infotainment system is of its era and may not offer the same seamless smartphone integration or feature set as newer vehicles.

Overall Summary

The 2015 GMC Sierra 2500HD is a highly capable and well-rounded heavy-duty pickup truck. It excels in towing and hauling, offering a choice between a strong gasoline V8 and a torque-rich Duramax diesel. With a comfortable and refined interior, especially in higher trims like the Denali, it provides a pleasant ownership experience for those who regularly need to tackle demanding jobs. While routine maintenance might be more involved and costly than a light-duty truck, its durability and performance make it a worthwhile investment for serious truck users.

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Listed on April 16, 2026 (4 days ago)
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