2nd Generation Terrain
- Years
- 2018–2021
- Reliability
- 17th out of 32
- PainRank™
- 2.51
- Complaints
- 12
1st Generation Terrain
- Years
- 2010–2017
- Reliability
- 30th out of 32
- PainRank™
- 18.94
- Complaints
- 434
GMC Terrain Generations
The Terrain has 2 generations available in North American markets. A generation is a group of model years where few, if any, changes were made to the vehicle which means their model years tend to break in similar ways.
The 1st generation (2010—2017) has been the least reliable.
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