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The 2015 GMC Sierra 3500 is not yet rated. Help future customers learn about a car you've owned and write a review.
**RepairPal Reliability Ratings are based on the actual cost, frequency, and severity of unscheduled repairs and maintenance on make/model data for select 2006-2020 vehicles. The reliability of a specific vehicle may vary depending on its maintenance and driving history, model year, trim, and features. RepairPal Reliability Ratings are provided by RepairPal and CarMax is not responsible for their accuracy. These ratings are based on RepairPal Reliability data as of 09/01/2021. Learn more about RepairPal reliability ratings
* Price excludes taxes, title, registration, and fees. Applicable transfer fees are due in advance of vehicle delivery and are separate from sales transactions.