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GMC C6500 Topkick

Model Year Comparison

Worst Model Year
2006
Worst Category
suspension Problems

We don't have a lot of complaints on file for the GMC C6500 Topkick — feel free to add yours here. Probably because it's so old, no one bothers to post complaints anymore.

The 2006 GMC C6500 Topkick has the most overall complaints, & we also rate 2006 as the worst model year ranked on several factors such as repair cost & average mileage when problems occur. The most-reported problem is also with the 2006 GMC C6500 Topkick for excessive cab shaking.

Click on the graph bars for more details about a specific model year.

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Worst GMC C6500 Topkick Problems

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