What's New for 2006 GMC Sierra 2500HD
Knowing how much a vehicle has changed from previous model years can help provide additional context when reviewing reliability ratings. Our Editors give you the bottom-line on what's new, the pros, the cons and more.
What's New for 2006
For 2006, the Duramax diesel engine receives a host of power and refinement upgrades, as well as reduced emissions. The Allison automatic transmission is now a six-speed, and features a tap-shift range selection mode. The camper-style mirrors have been replaced by a folding and extending design with a built-in convex spotter glass. Trim levels and packaging have also been juggled. Read More
Long-Term Reliability Ratings by Identifix
Portions © 2008 by Identifix, Inc. All rights reserved
Ratings Key
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Minimal Problems |
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Moderate Problems |
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Significant Problems |
2006 GMC Sierra 2500HD Reliability Rating
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Rating |
Comments |
| Engine |
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| Transmission & Driveline |
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An occasional problem on this vehicle is failure of the Transmission Cooler Hoses on vehicles with the Allison transmisssion (6.6L and 8.1L engines). The Transmissin Cooler Hoses can leak transmission fluid and cause the transmission to fail. The cost to repair the Transmission Cooler Hoses is $130.00 for parts and $143.00 for labor. All prices are estimates based on $65.00 per flat rate hour and do not include diagnostic time or any applicable sales tax. |
| Steering & Suspension |
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| Brake |
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| Heating & Air Conditioning |
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| Starting & Charging |
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| Accessories |
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| Overall |
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5 out of 5 |
Reliability ratings displayed above reflect style specific standard features and may vary from aggregated values displayed for the same year in the historical model overview below.
Reliability History for GMC Sierra 2500HD
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2006 |
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| Brake |
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| Heating & Air Conditioning |
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| Starting & Charging |
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| Overall |
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Reliability History for GMC
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2005 |
2006 |
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| Transmission & Driveline |
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| Steering & Suspension |
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| Brake |
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| Heating & Air Conditioning |
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| Starting & Charging |
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| Accessories |
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| Overall |
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