The 2006 GMC Sierra 2500HD is a heavy-duty pickup truck built for serious work. Part of the second generation of Sierra HD trucks (2001-2007), it's available in regular, extended, and crew cab configurations. Key trims include the base, SLE, and SLT. New, it ranged from approximately $27,000 to $40,000+. It stands out for its powerful engine options and towing capacity, making it a popular choice for those needing a dependable workhorse.
The Good
The 2006 GMC Sierra 2500HD offers robust performance with strong engine choices and impressive towing. It has a reputation for reliability, offering peace of mind. Practical buyers appreciate its workhorse capabilities, while emotional buyers are drawn to its rugged design and commanding presence. Comfortable interiors, especially in higher trims, enhance the driving experience.
The Bad
The 2006 GMC Sierra 2500HD can suffer from issues such as "death wobble" in the front suspension. Fuel economy is poor, especially with the gas engines. Rust can be a problem, particularly in areas with harsh winters. Watch for signs of heavy use and deferred maintenance, as these trucks were often used for demanding tasks.
2006 GMC Sierra 2500HD: Quick Overview
- Engine Options:
- 6.0L Vortec V8 (gas): 300 hp, 360 lb-ft torque
- 6.6L Duramax Turbodiesel V8: 360 hp, 650 lb-ft torque
- Horsepower: Ranging from 300 hp to 360 hp depending on the engine.
- Fuel Economy:
- Gas engine: Expect 10-14 mpg combined
- Diesel engine: Expect 12-17 mpg combined
- 0-60 Times: Not a primary focus for this vehicle. Gas engines around 8-9 seconds, diesel engines slightly quicker.
- Towing Capacity:
- Varies depending on configuration (cab, bed, 2WD/4WD)
- Up to 12,000 lbs with the gas engine (properly equipped)
- Up to 16,000 lbs with the Duramax diesel (properly equipped)
- Trim-Level Features:
- Base: Vinyl seating, basic audio system, manual windows/locks.
- SLE: Cloth seating, power windows/locks, upgraded audio, cruise control.
- SLT: Leather seating, dual-zone climate control, premium audio, heated seats, alloy wheels.
2006 GMC Sierra 2500HD Specifications
Vehicle Information
| Year | 2006 |
| Make | GMC |
| Model | Sierra 2500HD |
| Trim | - |
| Style | Long Bed 2WD 4-Speed Automatic |
| Type | Pickup Truck |
| Category | Standard Pickup Truck |
Manufacturing Details
| Made In | United States |
| Manufacturing City | PONTIAC |
Dimensions
| Doors | 2-Door |
| Curb Weight | 5398 pounds |
| Gross Vehicle Weight Rating | 9200 pounds |
| Overall Height | 76.20 inches |
| Overall Length | 224.50 inches |
| Overall Width | 79.70 inches |
| Wheelbase Length | 133.00 inches |
| Standard Seating | 3 |
Engine & Performance
| Engine | 6.0-L V-8 OHV 16V |
| Engine Size | 6L |
| Engine Cylinders | 8 |
| Transmission | 4-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 4-Speed |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Recirculating |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $23,915 |
| Invoice Price | $21,882 |
| Delivery Charges | $875 |
Vehicle History Report
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Analysis
Analysis
What Problems Does the 2006 GMC Sierra 2500HD Have?
Frequently reported problems for the 2006 GMC Sierra 2500HD include the "death wobble," a violent shaking in the front end often attributed to worn steering components or suspension issues. Rust is a significant concern, especially in northern climates where road salt is used. Brake lines are particularly susceptible to corrosion. The fuel injectors in the Duramax diesel can sometimes fail.
Recalls for this model year have addressed issues like faulty pitman arms and potential airbag deployment failures. Long-term reliability concerns often center around the transmission, particularly if the truck has been used extensively for towing. The transfer case can also develop issues. The 2006 model year doesn't have drastically different problems compared to surrounding years, but thoroughly inspecting the suspension, brakes, and fuel system is crucial before purchasing any used Sierra 2500HD. Checking the vehicle history report for recall completion and past repairs is also highly recommended.
Recalls for this model year have addressed issues like faulty pitman arms and potential airbag deployment failures. Long-term reliability concerns often center around the transmission, particularly if the truck has been used extensively for towing. The transfer case can also develop issues. The 2006 model year doesn't have drastically different problems compared to surrounding years, but thoroughly inspecting the suspension, brakes, and fuel system is crucial before purchasing any used Sierra 2500HD. Checking the vehicle history report for recall completion and past repairs is also highly recommended.
How long will the 2006 GMC Sierra 2500HD last?
Given proper maintenance, a 2006 GMC Sierra 2500HD can easily reach 200,000-300,000 miles or provide 15-20+ years of service. Lifespan heavily depends on how the truck was used and maintained. Diesel engines generally last longer than gas engines. Weaknesses over time include rust, suspension wear, and potential transmission issues, especially if used for frequent heavy towing. Regular fluid changes, brake maintenance, and addressing rust promptly are crucial for maximizing longevity. Many are still on the road today, a testament to their inherent durability.
What Technology & Safety Features are Included?
The 2006 GMC Sierra 2500HD features relatively basic technology compared to modern vehicles. Standard entertainment features include an AM/FM radio and CD player. Higher trims may offer options like a Bose sound system. Driver-assistance features are limited; primarily consisting of antilock brakes (ABS).
Safety features include front airbags and optional side airbags on some models. There are no advanced driver-assistance systems like lane departure warning or automatic emergency braking. Optional features include OnStar for emergency assistance.
Crash-test ratings from the NHTSA (National Highway Traffic Safety Administration) and IIHS (Insurance Institute for Highway Safety) should be consulted for specific cab configurations. Ratings can vary. Generally, the Sierra 2500HD provides decent occupant protection for its time, but lacks the modern safety technologies found in newer trucks. The focus was more on utility and ruggedness than advanced tech. The availability of four-wheel drive enhances safety in inclement weather conditions.
Safety features include front airbags and optional side airbags on some models. There are no advanced driver-assistance systems like lane departure warning or automatic emergency braking. Optional features include OnStar for emergency assistance.
Crash-test ratings from the NHTSA (National Highway Traffic Safety Administration) and IIHS (Insurance Institute for Highway Safety) should be consulted for specific cab configurations. Ratings can vary. Generally, the Sierra 2500HD provides decent occupant protection for its time, but lacks the modern safety technologies found in newer trucks. The focus was more on utility and ruggedness than advanced tech. The availability of four-wheel drive enhances safety in inclement weather conditions.
What Colors Options are Available?
Exterior Colors
Summit White
Onyx Black
Sport Red Metallic
Dark Blue Metallic
Silver Birch Metallic
Dark Gray Metallic
Sand Beige Metallic
Arrival Blue Metallic
Interior Colors
Light Cashmere
Dark Charcoal
2006 GMC Sierra 2500HD Prices and Market Value
When new, the 2006 GMC Sierra 2500HD ranged from roughly $27,000 to $40,000+, depending on cab style, trim level, engine, and options. Current used market prices typically range from $8,000 to $20,000, depending on condition, mileage, and location.
Depreciation has been significant, as is typical for trucks of this age. Factors affecting resale value include the engine (Duramax diesels command a premium), 4WD, cab configuration (crew cabs are more desirable), and overall condition. Low mileage and a well-documented maintenance history can significantly boost the resale price. Rust-free examples are especially valuable.
Depreciation has been significant, as is typical for trucks of this age. Factors affecting resale value include the engine (Duramax diesels command a premium), 4WD, cab configuration (crew cabs are more desirable), and overall condition. Low mileage and a well-documented maintenance history can significantly boost the resale price. Rust-free examples are especially valuable.
2006 GMC Sierra 2500HD Cost of Ownership
The 2006 GMC Sierra 2500HD is generally costly to own. Insurance rates can be moderate to high, depending on your driving record and location. Fuel economy is poor, especially with the gas engine. Maintenance and repair costs can be significant, particularly for diesel models. Parts can be expensive, and labor can be intensive. Long-term ownership requires diligent maintenance to prevent costly repairs. Rust prevention is crucial to avoid bodywork expenses. It's not an economical vehicle for those seeking low running costs.
2006 GMC Sierra 2500HD Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
34.00 gallons
City Mileage
-
Highway Mileage
-
2006 GMC Sierra 2500HD Safety Rating
NHTSA
IIHS
2006 GMC Sierra 2500HD Warranty
Basic
Original warranty
36 months / 36,000 miles
Estimated remaining
Expired
Powertrain
Original warranty
36 months / 36,000 miles
Estimated remaining
Expired
Rust
Original warranty
72 months / 100,000 miles
Estimated remaining
Expired
2006 GMC Sierra 2500HD Insurance
Insurance for a 2006 GMC Sierra 2500HD is moderately priced, reflecting its status as a Pickup Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2006 GMC Sierra 2500HD Compare to Other Pickup Truck?
The 2006 GMC Sierra 2500HD competes with the Ford F-250 and Dodge Ram 2500. In terms of performance, the Duramax diesel is comparable to Ford's Power Stroke and Dodge's Cummins engines. Feature-wise, the trucks are fairly similar, with the SLT trim offering comparable luxury to competitors' high-end trims. Reliability is subjective, but all three have their share of potential issues. The Ram 2500 might offer a slightly more comfortable ride, while the Ford F-250 sometimes feels more robust in certain areas. Price-wise, they are generally in the same ballpark on the used market, though diesel models always command a premium.
Alternatives depend on priorities. If ride comfort is paramount, the Ram 2500 could be a better choice. If a simpler, more utilitarian truck is desired, a well-maintained base model of any of the three could suffice. For maximum towing capacity and engine longevity, a Duramax-equipped Sierra or Silverado is a strong contender. However, thorough inspection and maintenance records are crucial regardless of the chosen make and model.
Alternatives depend on priorities. If ride comfort is paramount, the Ram 2500 could be a better choice. If a simpler, more utilitarian truck is desired, a well-maintained base model of any of the three could suffice. For maximum towing capacity and engine longevity, a Duramax-equipped Sierra or Silverado is a strong contender. However, thorough inspection and maintenance records are crucial regardless of the chosen make and model.
Ranks #430 Truck
| 1 | 2023 Toyota Tundra | (5.0★) |
| 2 | 2022 Honda Ridgeline | (5.0★) |
| 3 | 2023 Ford E-Transit Chassis | (0.0★) |
| 4 | 2020 Mercedes-Benz Sprinter Cab Chassis | (0.0★) |
| 5 | 2024 Chevrolet Silverado 3500HD | (0.0★) |
| 6 | 2023 Hyundai Santa Cruz | (5.0★) |
| 7 | 2023 Nissan Frontier | (5.0★) |
| 8 | 2024 GMC Sierra 2500HD | (0.0★) |
| 9 | 2023 Ram 4500 | (0.0★) |
| 10 | 2022 Jeep Gladiator | (5.0★) |
| 11 | 2012 Suzuki Equator | (0.0★) |
| 12 | 2009 Mitsubishi Raider | (5.0★) |
| 430 | 2006 GMC Sierra 2500HD | (0.0★) |
Final Verdict: Is the 2006 GMC Sierra 2500HD a Good Pickup Truck?
The 2006 GMC Sierra 2500HD is ideal for those needing a capable work truck for towing and hauling, and who are willing to accept higher running costs. It's worth buying used if you find a well-maintained example, preferably with a Duramax diesel engine. Avoid trucks with excessive rust or signs of abuse. The SLT trim offers a more comfortable experience, but SLE trims can be a good value. A thorough pre-purchase inspection by a qualified mechanic is essential. Consider alternatives if fuel economy or comfort are top priorities.
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.