AutoUtility currently tracks 37 official NHTSA owner defect complaints for the 2023 GMC Terrain. Fuel & Propulsion System issues are the most frequently reported category, appearing in 20 complaints (54.1% of submitted records). Among these NHTSA complaint records, 2 filings cite a crash, 1 cites a fire, 1 reports one or more injuries.
Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records
20 owner complaints submitted to NHTSA ODI for this subsystem.
7 owner complaints submitted to NHTSA ODI for this subsystem.
7 owner complaints submitted to NHTSA ODI for this subsystem.
7 owner complaints submitted to NHTSA ODI for this subsystem.
Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis
5 complaint narratives describe this symptom.
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"The contact owns a 2023 GMC Terrain. The contact stated that while driving at various speeds, the vehicle unexpectedly decelerated and failed to properly accelerate. The service transmission and service fuel management system messages were displayed, and the check engine warning light was flashing..."
"adaptive cruise disengaging alert on dash- no cars or weather conditions to induce this. loss of power and bucking on highway( near accident caused) catostostrophic sudden loss of power engine/transmission failure while mechanic driving resulting in car towed back to dealer. loss of power multiple..."
"I have had 2 different instances where my vehicle stops in the middle of a busy intersection or traffic and have no warning what so ever. Vehicle just shuts off and I am not able to turn back on to move out of the way. First time I got it repaired it was related to the fuel pump and now I am..."
"The contact owns a 2023 GMC Terrain. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated and the engine stalled. The contact attempted to drive the vehicle to the shoulder of the road, the engine seized. The contact stated while attempting to start..."
"I was driving the vehicle on the highway the cruise control was on. All of a sudden I got a warning on vehicle info panel that stated vehicle power is reduced. The vehicle decelerated on its own and I could not accelerate past 55. The check engine light came on. I pulled off the road and turned the..."
Reported defect complaint volume across sibling model years (2015–2026)
| Model Year | NHTSA Complaints | Crash Reports | Safety Recalls | Detailed Report |
|---|---|---|---|---|
| 2015 GMC Terrain | 315 | 10 | 3 | View 2015 Problems → |
| 2016 GMC Terrain | 152 | 9 | 2 | View 2016 Problems → |
| 2017 GMC Terrain | 133 | 11 | 1 | View 2017 Problems → |
| 2018 GMC Terrain | 218 | 14 | 5 | View 2018 Problems → |
| 2019 GMC Terrain | 181 | 7 | 3 | View 2019 Problems → |
| 2020 GMC Terrain | 192 | 7 | 2 | View 2020 Problems → |
| 2021 GMC Terrain | 34 | 4 | 2 | View 2021 Problems → |
| 2022 GMC Terrain | 81 | 0 | 2 | View 2022 Problems → |
| 2023 GMC Terrain Current Page | 37 | 2 | 2 | Current |
| 2024 GMC Terrain | 48 | 1 | 1 | View 2024 Problems → |
| 2025 GMC Terrain | 12 | 2 | 0 | View 2025 Problems → |
| 2026 GMC Terrain | 0 | 0 | 1 | View 2026 Problems → |
Complete distribution of consumer defect reports across all 26 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Injury Entries | Fatality Entries |
|---|---|---|---|---|---|
| Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM | 5 | 0 | 0 | 0 | 0 |
| ENGINE,FUEL/PROPULSION SYSTEM | 3 | 0 | 0 | 0 | 0 |
| Electrical System NHTSA category: ELECTRICAL SYSTEM | 2 | 0 | 0 | 0 | 0 |
| FUEL SYSTEM, GASOLINE,ENGINE | 2 | 0 | 0 | 0 | 0 |
| Powertrain NHTSA category: POWER TRAIN | 2 | 0 | 0 | 0 | 0 |
| Other / Uncategorized NHTSA category: UNKNOWN OR OTHER | 2 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,FUEL/PROPULSION SYSTEM | 2 | 0 | 0 | 0 | 0 |
| AIR BAGS,LANE DEPARTURE | 1 | 1 | 1 | 0 | 0 |
| ELECTRICAL SYSTEM,ENGINE | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,UNKNOWN OR OTHER,ENGINE | 1 | 0 | 0 | 0 | 0 |
| Engine NHTSA category: ENGINE | 1 | 0 | 0 | 0 | 0 |
| ENGINE AND ENGINE COOLING,FUEL SYSTEM, GASOLINE,ENGINE | 1 | 0 | 0 | 0 | 0 |
| Fuel System NHTSA category: FUEL SYSTEM, GASOLINE | 1 | 0 | 0 | 0 | 0 |
| FUEL SYSTEM, GASOLINE,POWER TRAIN | 1 | 0 | 0 | 0 | 0 |
| FUEL SYSTEM, GASOLINE,POWER TRAIN,ENGINE | 1 | 0 | 0 | 0 | 0 |
| Lane Departure Warning NHTSA category: LANE DEPARTURE | 1 | 0 | 0 | 0 | 0 |
| LANE DEPARTURE,BACK OVER PREVENTION,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ELECTRICAL SYSTEM | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| STEERING,LANE DEPARTURE | 1 | 1 | 0 | 1 | 0 |
| STRUCTURE,UNKNOWN OR OTHER,ENGINE | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| VEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| VISIBILITY,VEHICLE SPEED CONTROL | 1 | 0 | 0 | 0 | 0 |
Cross-reference safety recalls, crash test safety ratings, and EPA fuel economy for this model year
Key performance indicators, EPA fuel economy specs, powertrain variants, and summary ratings.
Official recall campaigns, safety defect descriptions, and manufacturer free remedy instructions.
NHTSA 5-Star NCAP crash test results, driver assistance systems, and rollover resistance ratings.
EPA fuel economy ratings, electric range, and annual energy cost benchmarks.
Direct, deterministic answers synthesized from verified United States government databases for the 2023 GMC Terrain
In official NHTSA consumer records, the most frequently cited issue area for the 2023 GMC Terrain is Fuel & Propulsion System, appearing in 20 records (54.1% of submitted filings).
Secondary reported categories include Driver Assistance & Safety Tech (7) and Powertrain & Transmission (7).
AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 37 consumer defect complaints and 2 safety recall campaigns for the 2023 GMC Terrain.
Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.
Among consumer complaint records on file with NHTSA for the 2023 GMC Terrain, 2 filings cite a crash, 1 cite smoke or fire, and 1 report one or more injuries.
Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.
The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.