Table 1 shows three common power train related problems of the 2024 GMC Terrain. The number one most common problem is related to the power train (20 problems). The second most common problem is related to the automatic transmission torque converter (one problem).
| Problem Category | Number of Problems |
|---|---|
| Power Train problems | |
| Automatic Transmission Torque Converter problems | |
| Automatic Transmission Control Module problems |
GMC adaptive learning transmission problems that lead to safety concerns, emissions reduction in mpg, and increased wear of the transmission. Regarding gm’s 9t45 automatic 9 speed transmission. Problem: - the gm adaptive learning of the transmission does not have safe guards in place to Read details...
The contact owns a 2024 GMC Terrain. The contact became aware of a fluid leak underneath the vehicle. There was no warning light illuminated. The vehicle was driven to a local dealer, where it was diagnosed with a leaking torque converter seal, allowing transmission fluid to leak onto the ground. Read details...
We purchased our 2024 GMC Terrain on April 13, 2024 and on June 12, 2024 my husband and I were headed out to go to dinner and when leaving our neighborhood I noticed a weird transmission shift or slip and then the vehicle rpms increased suddenly. Read details...