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GMC Sierra HD Repair Frequencies

Results are for year ending June 30, 2018. Only successfully completed repairs are currently included in the analysis. Routine maintenance, most wear items, recalls, and problems fixed with just a reflash or warning light reset are not included.
Year Make/Model Repair Trips Per 100 Cars Compared to all models for the same year    
2015 GMC Sierra HD   small sample, members only   see reported repairs
  23 Sierra HDs, 10.0 months of data per Sierra HD, average 42800 miles

* Small sample, members only.
2011 GMC Sierra HD   small sample, members only   see reported repairs
  14 Sierra HDs, 8.0 months of data per Sierra HD, average 62100 miles

* Very small sample, members only.
2006 GMC Sierra HD   small sample, members only   see reported repairs
  10 Sierra HDs, 9.5 months of data per Sierra HD, average 85700 miles

* Very small sample, members only.
2004 GMC Sierra HD   small sample, members only   see reported repairs
  14 Sierra HDs, 9.9 months of data per Sierra HD, average 126000 miles

* Very small sample, members only.

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GMC Sierra HD Reliability

You won't find GMC Sierra HD reliability information like this anywhere else. Actual repair frequencies, not just vague dots. So you can tell how much the GMC Sierra HD truly differs from competing car models in reliability.

These stats have been promptly updated four times a year, to much more closely track GMC Sierra HD reliability as the cars age. Others tell you how reliable the GMC Sierra HD was a year ago, when the cars were a year younger and had 12,000 fewer miles on them. Only TrueDelta tells you how reliable the GMC Sierra HD has been recently.

See TrueDelta's information for all GMC models.