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Buick Century vs. GMC Sierra 1500 Powertrain and Chassis Reliability by Model Generation
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 and Model | % of Average Repair Frequency | |
 2014 - 2018 GMC Sierra 1500 |
Best
118%
Worst
|
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 2007 - 2013 GMC Sierra 1500 |
Best
88%
Worst
|
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 2000 - 2006 GMC Sierra 1500 |
Best
101%
Worst
|
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