2006
GMC Sierra 2500
Starts at:
$21,825

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Notable features
Half- , three-quarter- and one-ton models
Choice of engines
Three cab styles
RWD or 4WD
More powerful turbo-diesel V-8 for 2006 (2500HD, 3500)
The good & the bad
The good
Performance with gasoline V-8
Automatic-transmission response
Quietness
The bad
Ride comfort
Fuel economy
Available cars near you
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$12,995101 mi away
Factory warranties
New car program benefits
Basic
3 years / 36,000 miles
Corrosion
6 years / 100,000 miles
Powertrain
5 years / 100,000 miles
Roadside Assistance
3 years / 36,000 miles
Certified Pre-Owned program benefits
Age / mileage
5 model years or newer / up to 75,000 miles
Basic
12 months / 12,000 miles bumper-to-bumper original warranty, then may continue to 6 years / 100,000 miles limited (depending on variables)
Dealer certification
172-point inspection
Compare similar vehicles
Select cars to compare for more detailed info.
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2006GMC Sierra 2500Starts at$21,8253Seat capacityGas V8EngineRear-wheel driveDrivetrain4,235 lbsPayload CapacityN/ATowing Capacity
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2006Chevrolet Silverado 2500Starts at$21,8253Seat capacityGas V8EngineRear-wheel driveDrivetrain3,340 lbsPayload CapacityN/ATowing Capacity
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2002GMC Sierra 3500Starts at$24,4243Seat capacityGas V8EngineRear-wheel driveDrivetrainN/APayload CapacityN/ATowing Capacity
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2004GMC Savana 2500Starts at$23,5001Seat capacityGas V8EngineRear-wheel driveDrivetrain-Payload Capacity-Towing Capacity
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2007GMC Sierra 2500Starts at$22,2252Seat capacityGas V8EngineRear-wheel driveDrivetrain3,543 lbsPayload CapacityN/ATowing Capacity
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2009Chevrolet Silverado 3500Starts at$26,8152Seat capacityGas V8EngineRear-wheel driveDrivetrain3,591 lbsPayload Capacity13,000 lbsTowing Capacity
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Most recent
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I have owned a Dodge Cummins and this 2006 GMC
2006 Duramax is great truck for pulling my travel trailer. When just the truck over 20 mpg and 13 pulling a 8,000 trailer. Very comfortable and stable on the road, plenty of power. I installed a Pioneer system with 7" screen, blue tooth, dvd, satellite radio and android auto. With that I have every option of a new truck- Purchased a Used car
- Used for Towing
- Does recommend this car
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Very reliable!
This truck is very powerfull great for towing has a grade break for slowing when going downhill. It is loaded with options and is a very comfortable ride!- Purchased a Used car
- Used for Having fun
- Does recommend this car
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amazing duramax
I have driven a lot of trucks including transports and have never liked a vehicle as much as I like this one. Low maintenance good mileage lots of power the only bad thing is that it came with a 26 gal. Fuel tank so I upgraded to a 52 gal tank at $3500. Which was a ridiculous price but in the end well worth it. Amazing truck- Purchased a Used car
- Used for Towing
- Does recommend this car
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Sharp and plenty of power
Excellent truck plenty of power for towing my toy hauler camper. It?s four door so plenty of space for family.- Purchased a Used car
- Used for Towing
- Does recommend this car
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great investment
Fills all my needs... and then some. cant wait to use it camping.. I didn't think I would like a truck that bug at first. but it has proven to be an excellent purchase, and usefull for many applications.- Purchased a Used car
- Used for Having fun
- Does recommend this car
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2006 GMC 2500HD
Took 2 road trips with this truck already. One was pulling a 7500 LB travel trailer 2800 miles, interior comfort was nice and the ride was smooth. Love the truck. The 8.1 Vortec and Allison 6 speed auto made for decent acceleration but fuel economy was pretty rough. Still the best towing truck I have had.- Purchased a Used car
- Used for Commuting
- Does recommend this car
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Best truck!
I loved my Sierra.. I smiled every time I got in :) I loved everything about it. From the leather heated seats, the height, the reliability and durability. How it had memory seat positions. This truck was badass. Many compliments. The gas was a bit pricey, but to be expected. The handling was great. Overall extremely happy- Purchased a Used car
- Used for Commuting
- Does recommend this car
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expensive maintenance
2500HD diesel work truck bought new, now with 60k miles. Garaged, rarely started without going 100miles, mostly interstate, but has a lot of rust on the frame. Lightweight slide-in camper on it most of the time. But already all 4 calipers replaced, and fluid lines on transmission leaking and had to be replaced! The mechanic- Purchased a New car
- Does recommend this car
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Sierra SLE
Decent truck I use for my business and going up in the mountains to my mining sites. The only beef is mileage sucks I have seen 16mpg thats it. I tried to use a diablo on the computer but seems to not really do much except when towing it got 10mpg! Without the tune 12mpg. Other than that super comfortable and great on and off- Purchased a Used car
- Does recommend this car
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strongest sturdiest truck i've ever owned
cant be beat for the money in all areas of workability and power.strong puller with good mileage and dependability in all weatther conditions.- Purchased a Used car
- Does recommend this car
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truck
use it everyday to pull enclosed trailer, bobcat trailer, and any other kind of trailer. 25MPG@55MPH- Purchased a New car
- Does recommend this car
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FAQ
What trim levels are available for the 2006 GMC Sierra 2500?
The 2006 GMC Sierra 2500 is available in 5 trim levels:
- SL (10 styles)
- SLE1 (10 styles)
- SLE2 (8 styles)
- SLT (8 styles)
- Work Truck (10 styles)
What are some similar vehicles and competitors of the 2006 GMC Sierra 2500?
The 2006 GMC Sierra 2500 compares to and/or competes against the following vehicles:
Is the 2006 GMC Sierra 2500 reliable?
The 2006 GMC Sierra 2500 has an average reliability rating of 4.7 out of 5 according to cars.com consumers. Find real-world reliability insights within consumer reviews from 2006 GMC Sierra 2500 owners.
Is the 2006 GMC Sierra 2500 a good Truck?
Below are the cars.com consumers ratings for the 2006 GMC Sierra 2500. 100.0% of drivers recommend this vehicle.
- Comfort: 4.7
- Interior: 4.5
- Performance: 4.8
- Value: 4.5
- Exterior: 4.5
- Reliability: 4.7
GMC Sierra 2500 history
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2025 GMC Sierra 2500 -
2024 GMC Sierra 2500 -
2023 GMC Sierra 2500 -
2022 GMC Sierra 2500 -
2021 GMC Sierra 2500 -
2020 GMC Sierra 2500 -
2019 GMC Sierra 2500 -
2018 GMC Sierra 2500
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