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.
Engine check light has come on at least 6 different occasions. The dealer reported an assigned reason for the failure each time. Then on the last occurrece they did not even trouble-shoot the failure. Instead they reprogrammed the prom for the engine. Immediately after this my fuel economy went for 12-14 mpg to 8-9 mpg, the engine idle is rough (sometimes almost stalls) and on occasion there is a fuel smell. After complaining about these items the dealer "can not find anything wrong" GMC has refused all my attemps to have a regional support manager contact me. In addition to this the fuel pump has made a loud buzzing noise ( you can hear inside the vehicle with the windows up). The dealer said this was "normal".
- San Jose, CA, USA
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- San Jose, CA, USA