This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.
So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.
Inaccurate speedometer readings including complete failure of the speedometer on the instrument panel. Driving at highway speeds in excess of 60mph, speedometer showed 10mph.
After engine is warmed up, usually after driving just a few miles, there is a loud banging noise that appears to be coming from the muffler. It happens approx every 8-12 seconds with the truck running or off. I took it to the dealer and they said that they didn't hear it, although the sales manager that sold me the vehicle heard it. They said to bring it back later and that there is a bulletin out on it but GMC has not released the parts so they can't fix it even if they did hear it. When I am sitting next to another vehicle, for example at a light, it sounds like something is hitting their vehicle and is coming from mine. With road rage being what it is these days I am afraid that someone will not understand that GMC has "not released the parts" to fix it.
- Carrollton, TX, USA
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- Cherry Valley, IL, USA