2017 GMC Terrain Engine Problems
Engine complaints account for 79 of 133 total complaints (59%) filed for the 2017 GMC Terrain, the highest share of any year in the lineup. Owners report rear main seal failures causing oil loss, sudden power loss, and stalling, with a median failure mileage of 82,500. No related recalls are listed.
- Engine complaints
- 79
- 59% of 133
- Crashes reported
- 0
- Fires reported
- 1
- Injuries reported
- 0
- Median mileage
- 82,500 mi
- Related recalls
- 0
Typical engine symptoms owners report
- Rear main seal fails and leaks oil out of the engine, often triggering a low oil pressure warning with no earlier indication of a problem.
- Vehicle loses motive and electrical power suddenly at low speeds, sometimes restarting on its own.
- "Reduced engine power" and "service stabilitrak" warnings appear together on the highway, causing jerking and slow acceleration.
- Engine consumes oil at an accelerated rate, noticed as low oil levels shortly after a dealer oil change.
- Intake manifold and PCV system clogging is described as building pressure that pushes out the rear main seal, especially in cold weather.
- One case involved a power steering assembly fire that led to engine malfunction while driving at highway speed.
When 2017 GMC Terrain engine complaints were filed
First complaint Jan 29, 2021, latest Mar 29, 2026.
Engine recalls for the 2017 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
- Are 2017 GMC Terrain engine problems common?
- Yes. Engine complaints make up 79 of the 133 total complaints filed for the 2017 Terrain, or 59% of all complaints for that model year, one of the highest shares among Terrain model years.
- What is the most reported engine issue on the 2017 GMC Terrain?
- Owners most often describe rear main seal failures that leak oil out of the engine, along with sudden loss of power or stalling while driving.
- Is there a recall for the 2017 GMC Terrain engine?
- NHTSA lists no related recalls tied to this engine complaint category for the 2017 Terrain.
- At what mileage do 2017 GMC Terrain engine problems usually happen?
- The median mileage at failure reported to NHTSA for this engine complaint category is 82,500 miles.