2012 GMC Terrain Engine Problems
Engine problems account for 179 of 364 complaints (49%) filed against the 2012 GMC Terrain, the largest single category that year. Owners most often report stalling and sudden power loss, with a median failure mileage of 85,000. NHTSA lists no related recall for this engine issue.
- Engine complaints
- 179
- 49% of 364
- Crashes reported
- 2
- Fires reported
- 3
- Injuries reported
- 3
- Median mileage
- 85,000 mi
- Related recalls
- 0
Typical engine symptoms owners report
- Vehicle stalls or dies at low speeds or while idling, sometimes repeatedly within minutes and without warning lights.
- Check engine light comes on along with a rattling or knocking noise on startup that owners say worsens over time.
- Engine misfires accompanied by traction control and StabiliTrak warnings, with reduced power and rough shifting reported together.
- Sudden loss of acceleration on the highway with a 'reduced engine power' message limiting speed to a crawl.
- Engine compartment produces a popping sound and visible white smoke or flames during acceleration in at least one case.
When 2012 GMC Terrain engine complaints were filed
First complaint Dec 2, 2011, latest Jun 2, 2026.
Engine recalls for the 2012 GMC Terrain
No safety recalls on record for this model year.
Engine complaints by Terrain model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How common are engine problems in the 2012 GMC Terrain?
- Engine complaints make up 179 of the 364 total complaints filed for the 2012 GMC Terrain, or 49% of all complaints for that year.
- Is there a recall for the 2012 GMC Terrain engine?
- NHTSA lists no related recall tied to the engine complaints reported for the 2012 GMC Terrain.
- At what mileage do engine problems usually appear on the 2012 Terrain?
- The median mileage at failure among reported engine complaints is 85,000 miles.
- What kind of engine failures do owners report most?
- Owners most frequently describe the vehicle stalling at low speeds, engine misfires, rough or intermittent power loss, and in a few cases smoke or fire in the engine compartment.
- How does 2012 compare to other Terrain model years for engine complaints?
- The 2012 Terrain's 49% engine complaint share is close to 2011 (54%) and 2013 (57%), while later years like 2016 (32%) and 2018 (26%) show a lower share.