Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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GMC C4500

Model Year Comparison

Worst Model Year
2006
Worst Complaint
excessive vibration at speeds between 43 to 48 mph

We don't have a lot of complaints on file for the GMC C4500 — feel free to add yours here. It's either not very popular ... or it's very, very good.

The 2006 GMC C4500 has the most overall complaints, & the most-reported problem is also with the 2006 C4500 for excessive vibration at speeds between 43 to 48 mph.

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

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Worst Reported Problems with the C4500

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