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GMC Sierra 1500 and Pontiac G8 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.
36 vehicles, 11.7 months per vehicle, 81800 miles driven

Includes 2008s and 2009s. 2009		 Pontiac G8
[?] see reported repairs
  36 vehicles, 11.7 months per vehicle, 81800 miles driven

Includes 2008s and 2009s.
36 vehicles, 11.7 months per vehicle, 81800 miles driven

New design, spring introduction. Combined with the 2009.2008		 Pontiac G8
[?] see reported repairs
  36 vehicles, 11.7 months per vehicle, 81800 miles driven

New design, spring introduction. Combined with the 2009.

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GMC Sierra 1500 vs. Pontiac G8 Lemon Odds and Nada Odds

Other sources of GMC Sierra 1500 and Pontiac G8 reliability data provide only averages, which can conceal as much as they reveal. So we also report the percentage of GMC Sierra 1500s and Pontiac G8s with no repairs at all in the past year and the percentage of GMC Sierra 1500s and Pontiac G8s 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 Pontiac G8 lemon odds as the cars age. Others can be over a year behind. Only TrueDelta tells you how reliable the GMC Sierra 1500 and Pontiac G8 have been recently.

To see how frequently GMC Sierra 1500 and Pontiac G8 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 Pontiac G8

Pontiac G8 Brand Reputation: Pros
YearBody/PowertrainComment
2009 4dr Sedan 361-horsepower 6.0L V8
6-speed shiftable automatic RWD		 Pontiac has always been about performance. see full Pontiac G8 review
Pontiac G8 Brand Reputation: Cons
YearBody/PowertrainComment
2009 4dr Sedan 256-horsepower 3.6L V6
5-speed shiftable automatic RWD		 Pontiac...need I say more? see full Pontiac G8 review
2008 4dr Sedan 361-horsepower 6.0L V8
6-speed shiftable automatic RWD		 What brand image? see full Pontiac G8 review
2008 4dr Sedan 256-horsepower 3.6L V6
5-speed shiftable automatic RWD		 gee whiz target, little over the top, although this model is less so than past efforts. was a pleasant ride with good handling see full Pontiac G8 review