What's New for 2003 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 2003
The Sierra gets a revised look this year that includes a new front fascia, revised side moldings and optional multifunction, fold-away mirrors. On the inside, GMC has added new seats, a more comprehensive driver information center, a redesigned instrument panel and optional dual-zone climate control and satellite steering wheel controls. On the hardware side, the standard 6.0-liter V8 gets electronic throttle control as well as the ability to run exclusively on Compressed Natural Gas (CNG) or a mix of CNG and gasoline. Other upgrades include an improved Insta-Trac part-time four-wheel drive system for reduced service costs, a more efficient starter for the 8.1-liter V8 and a revised headlight switch that allows drivers to turn off the daytime running lamps. 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 |
2003 GMC Sierra 2500HD Reliability Rating
| Category |
Rating |
Comments |
| Engine |
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An occasional problem on this vehicle is failure of the Fuel Injectors on vehicles equipped with 6.6L Duramax Diesel (RPO LB7- VIN Code 1) engine. A problem with the fuel injectors could cause the service engine soon (SES) light illumination, low power, hard start and/or fuel in crankcase. On some vehicles, this problem may be covered by the manufacturer Special Policy Adjustment # 04039A. Contact your local dealer for more information. The cost to repair the Fuel Injectors is estimated at $2800.00 for parts and $825.50 for labor. Prices are estimates based on $65.00 per flat rate hour and do not include diagnostic time or any applicable sales tax. |
| Transmission & Driveline |
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An occasional problem on this vehicle is failure of the Park Neutral Switch for the Allison Automatic Transmission. This can cause the "Service Engine Soon" light to come on or the transmission to not shift properly. The cost to replace the Park Neutral Switch is estimated at $165.17 for parts and $45.00 for labor. All prices are estimates based on $65.00 per flat rate hour and do not include any applicable sales tax.. |
| Steering & Suspension |
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| Brake |
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An occasional problem on this vehicle is failure of the Front Wheel Speed Sensor. Failure of the Front Wheel Speed Sensor can cause false cycling of the ABS brakes. The cost to repair the Front Wheel Speed Sensor(s) is $124.97 for the parts and $84.50 for labor per side. All prices are estimates based on $65.00 per flat rate hour and do not include diagnostic time or any applicable sales tax. |
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| Overall |
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4 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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Reliability History for GMC
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