Table 1 shows one common power train related problems of the 2018 GMC Sierra.
| Problem Category | Number of Problems |
|---|---|
| Power Train problems |
Driving down the highway about 65mph it made a loud clunk and I took it in to service department and they told me I would have to pay about $400. 00 to drain the transmission fluid and replace it. I told them m pick up only has less than 15,000 miles on it I don't think this is fair, the service gu said the don't pay for it and other GMC denali customers had theirs done and problem was solved and I wasn't the only customer that had the issue and cory from alaska auto body said it was safe to drive.