2019 GMC Terrain Engine Problems
Owners have filed 70 complaints with NHTSA about engine problems on the 2019 GMC Terrain, 38% of all complaints for this model year. Half of the reports with a mileage happened before 72,000 miles. The words owners use most often: “vacuum pump” (33% of reports).
- 70engine complaints
- 72,000median miles at failure
- 0mention a crash
- 0mention an injury
- 0related recalls
- 63%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Vacuum pump: mentioned in 23 of 70 complaints (33%)
- Lafontaine ann: mentioned in 7 of 70 complaints (10%)
- Engine reduced: mentioned in 7 of 70 complaints (10%)
- Service center: mentioned in 5 of 70 complaints (7%)
At what mileage do engine problems happen?
Based on 9 complaints that reported the odometer reading.
How serious are the reports?
Of 70 complaints, 2 a fire.
GMC Terrain engine complaints by model year
| Model year | Engine complaints | Share of that year | Median miles |
|---|---|---|---|
| 2026 Terrain | 1 | 3% | — |
| 2025 Terrain | 2 | 15% | 1,126 |
| 2024 Terrain | 11 | 21% | 6,766 |
| 2023 Terrain | 15 | 38% | 41,000 |
| 2022 Terrain | 10 | 17% | 66,000 |
| 2021 Terrain | 10 | 28% | 61,000 |
| 2020 Terrain | 58 | 29% | 67,000 |
| 2019 Terrain | 70 | 38% | 72,000 |
| 2018 Terrain | 55 | 25% | 18,000 |
| 2017 Terrain | 79 | 59% | 79,750 |
| 2016 Terrain | 46 | 30% | 70,000 |
| 2015 Terrain | 80 | 27% | 83,000 |
| 2014 Terrain | 123 | 41% | 91,000 |
| 2013 Terrain | 197 | 54% | 91,000 |
| 2012 Terrain | 169 | 46% | 85,000 |
| 2011 Terrain | 178 | 46% | 85,500 |
| 2010 Terrain | 107 | 37% | 79,839 |
When owners reported it
Related recalls (0)
No safety recall lists engine for the 2019 GMC Terrain. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
VIN: [XXX] Mileage: Approximately 103,576 Incident location: [XXX] Safety Complaint: While my wife was driving our 2019 GMC Terrain into a shopping center parking lot, the vehicle suddenly experienced a severe loss of braking assistance. The brake pedal became extremely stiff and difficult to…
While driving on an interstate, vehicle became sluggish when accelerating. Took off on exit, engine was reduced to 50% power, attempted to drive to large parking lot, lost brakes, got the vehicle stopped in an intersection, would not shut off, go into neutral. Finally shut off, had to call tow…
On 9/15/2026, my wife drove her car, a 2019 GMC Terrain, to a doctor's appointment. She reported no known issues with the way the car operated during her drive nor had she or I experienced issues prior to this event. After she finished her appointment, she attempted to start her car and was unable…
Frequently asked questions
Do all 2019 GMC Terrains have engine problems?
No. NHTSA has 70 owner complaints about engine for the 2019 GMC Terrain (38% of the 186 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2019 GMC Terrain engine?
No recall currently lists engine for this vehicle.
At what mileage do engine problems start?
The median reported mileage is 72,000 miles: half of the reports with a mileage came before that.
What do owners say about engine problems on the 2019 GMC Terrain?
The most frequent phrase is “vacuum pump”, in 23 of 70 complaints, followed by “lafontaine ann” (7).
Other 2019 GMC Terrain problems
See all 2019 GMC Terrain problems or engine problems across all Terrain years.