AutoUtility currently tracks 48 official NHTSA owner defect complaints for the 2024 GMC Terrain. Powertrain & Transmission issues are the most frequently reported category, appearing in 20 complaints (41.7% of submitted records). Among these NHTSA complaint records, 1 filing cites a crash, 1 cites a fire, 2 report 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.
10 owner complaints submitted to NHTSA ODI for this subsystem.
7 owner complaints submitted to NHTSA ODI for this subsystem.
6 owner complaints submitted to NHTSA ODI for this subsystem.
Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis
6 complaint narratives describe this symptom.
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"The rear access closes on its own after sitting open for a period of time. I was sitting at grocery pick up with the access open. This caused it to close on worker at grocery pick up. It stayed closed and I had to hit the button to open it back it did not auto go back up when it couldn’t close."
"I was driving about 55 mph with adaptive cruise control set to maintain a three-car-length following distance. It was raining, and when the vehicle in front of me slowed down, my vehicle did not detect it or slow down as expected. Instead, it continued accelerating, and I had to brake to avoid..."
"Leaking transmission fluid at 7,000 miles. Technicians noticed during routine oil change at dealership."
"The vehicle has experienced a recurring transmission-related defect that has required multiple repair attempts by an authorized GMC dealership. The transmission system has also exhibited fluid leakage. Despite prior repairs, the problem has continued to reoccur. Transmission and associated..."
"Accelerator lag from any speed or stop. The care will take several seconds to hunt for the correct gear before shifting to accelerate. Or it will delay acceleration for several seconds while your pressing the accelerator. No SES indicator active. Mechanics can’t find issues. Other owners on forum a..."
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 | 37 | 2 | 2 | View 2023 Problems → |
| 2024 GMC Terrain Current Page | 48 | 1 | 1 | Current |
| 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 22 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Injury Entries | Fatality Entries |
|---|---|---|---|---|---|
| Powertrain NHTSA category: POWER TRAIN | 13 | 0 | 0 | 0 | 0 |
| Other / Uncategorized NHTSA category: UNKNOWN OR OTHER | 6 | 0 | 0 | 0 | 0 |
| ENGINE,FUEL/PROPULSION SYSTEM | 3 | 0 | 0 | 0 | 0 |
| Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM | 3 | 0 | 0 | 0 | 0 |
| Air Bags NHTSA category: AIR BAGS | 2 | 1 | 0 | 1 | 0 |
| ELECTRICAL SYSTEM,UNKNOWN OR OTHER | 2 | 0 | 0 | 0 | 0 |
| Forward Collision Avoidance NHTSA category: FORWARD COLLISION AVOIDANCE | 2 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE | 2 | 0 | 0 | 0 | 0 |
| POWER TRAIN,VEHICLE SPEED CONTROL | 2 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,LANE DEPARTURE | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| Engine NHTSA category: ENGINE | 1 | 0 | 0 | 0 | 0 |
| FIRERELATED | 1 | 0 | 1 | 1 | 0 |
| POWER TRAIN,ELECTRICAL SYSTEM,ENGINE | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| SERVICE BRAKES, HYDRAULIC,ENGINE | 1 | 0 | 0 | 0 | 0 |
| SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| Steering NHTSA category: STEERING | 1 | 0 | 0 | 0 | 0 |
| Structure & Body NHTSA category: STRUCTURE | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| VEHICLE SPEED CONTROL,ENGINE,FUEL/PROPULSION SYSTEM | 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 2024 GMC Terrain
In official NHTSA consumer records, the most frequently cited issue area for the 2024 GMC Terrain is Powertrain & Transmission, appearing in 20 records (41.7% of submitted filings).
Secondary reported categories include Fuel & Propulsion System (10) and Driver Assistance & Safety Tech (7).
AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 48 consumer defect complaints and 1 safety recall campaign for the 2024 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 2024 GMC Terrain, 1 filing cites a crash, 1 cite smoke or fire, and 2 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.