2020 GMC Sierra 3500 HD Repair & Maintenance Costs

A guide to repairs, service, and maintenance costs for your 2020 GMC Sierra 3500 HD
We don’t currently have enough data on the 2020 GMC Sierra 3500 HD to give you an accurate yearly maintenance cost. For details on the 2020 GMC Sierra 3500 HD, click here.
2020 GMC Sierra 3500 HD
2020 GMC Sierra 3500 HD

Most Common 2020 GMC Sierra 3500 HD Problems

2020 GMC Sierra 3500 HD vehicles have 0 reported problems.The most commonly reported 2020 GMC Sierra 3500 HD problem is: GMC Sierra 3500 HD transfer case issue persisting for 2 months
2020 GMC Sierra 3500 HD
Some gmc sierra 3500 hd owners report experiencing persistent transfer case issues that can stem from various...

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2023 GMC Sierra 3500 HD
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Average
The GMC Sierra 3500 HD Reliability Rating is 2.5 out of 5.0, which ranks it 11th out of 17 for fullsize trucks. The average annual repair cost is $1,121 which means it has poor ownership costs. The frequency of repairs is average, but when issues do arise, they are more likely to be severe than with other models.
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