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GMC Sierra 1500 and Hummer H3 Lemon Odds and Nada Odds for the Year Ending June 30, 2018

An asterisk (*) marks results based on small sample sizes.

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Year Make/Model Nada Odds per 100 Cars Lemon Odds per 100 Cars    
35 vehicles, 11.5 months per vehicle, 18500 miles driven2017 GMC Sierra (not HD)
[?] see reported repairs
  35 vehicles, 11.5 months per vehicle, 18500 miles driven
43 vehicles, 11.7 months per vehicle, 39900 miles driven2015 GMC Sierra (not HD)
[?] see reported repairs
  43 vehicles, 11.7 months per vehicle, 39900 miles driven
41 vehicles, 11.6 months per vehicle, 57900 miles driven

Redesigned.2014		 GMC Sierra (not HD)
[?] see reported repairs
  41 vehicles, 11.6 months per vehicle, 57900 miles driven

Redesigned.

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GMC Sierra 1500 vs. Hummer H3 Lemon Odds and Nada Odds

Other sources of GMC Sierra 1500 and Hummer H3 reliability data provide only averages, which can conceal as much as they reveal. So we also report the percentage of GMC Sierra 1500s and Hummer H3s with no repairs at all in the past year and the percentage of GMC Sierra 1500s and Hummer H3s that are lemons (required three or more repair trips in the past year). These figures might surprise you.

These stats are promptly updated four times a year, to closely track GMC Sierra 1500 and Hummer H3 lemon odds as the cars age. Others can be over a year behind. Only TrueDelta tells you how reliable the GMC Sierra 1500 and Hummer H3 have been recently.

To see how frequently GMC Sierra 1500 and Hummer H3 problems occur, check out our car reliability stats.

What Our Members Are Saying about the Brand Reputation of the GMC Sierra 1500

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What Our Members Are Saying about the Brand Reputation of the Hummer H3

Hummer H3 Brand Reputation: Pros
YearBody/PowertrainComment
2006 4dr SUV 220-horsepower 3.5L I5
4-speed automatic AWD w/low range		 Hummer is known for its offroad prowess and toughness. see full Hummer H3 review
2006 4dr SUV 220-horsepower 3.5L I5
4-speed automatic AWD w/low range		 Gives me a boost of self esteem! see full Hummer H3 review
Hummer H3 Brand Reputation: Cons
YearBody/PowertrainComment
2006 4dr SUV 220-horsepower 3.5L I5
4-speed automatic AWD w/low range		 Hearing dumb ass hippies crying about my H3 at the gas pump all the while filling up their Honda/Prius. "Least mine is American made, commie" became a common response from me. see full Hummer H3 review