product.specifications
specs.g_fuel_economy
specs.city_mpg24
specs.highway_mpg29
specs.combined_mpg26
specs.annual_fuel_cost$2600
specs.ghg_score5 / 10
specs.g_engine_drivetrain
specs.engine_size1.5 L
specs.cylinders4
specs.fuel_typeRegular
specs.transmissionAutomatic 9-spd
specs.drivetrainFront-Wheel Drive
CO₂342 g/mi
specs.g_classification
specs.vehicle_classSmall Sport Utility Vehicle 2×2
specs.data_sourced_from FuelEconomy.gov (specs.energy_dept)
product.complaints_section28 total
GMC TERRAIN 2024 FUEL/PROPULSION SYSTEM
mediumSince purchase, this vehicle has consistently had an issue with the fuel system. When I call GMC they state only use no ethanol fuel. I wouldnât have bought this car if that was the case. The dealership never said that when I was buying it. We replaced the entire engine for $11,000 because of a torn radiator hose, overheating and cracked a gasket. Now, the car is refusing to drive, giving engine power reduced
GMC TERRAIN 2024 AIR BAGS
highThe contact owned a 2024 GMC Terrain. The contact stated that while her daughter was driving 5 MPH on an intersection, another vehicle driving 40 MPH crashed into the driver's side of the vehicle, by the driver's side door. The driver's side curtain air bag deployed. The contact stated that the three holes on the air bag propelled burning air, which melted and burned through the three layers of clothing of the driver. The driver sustained second-degree burns and blisters on the hip. The contact picked up and transported the driver to Urgent Care, where medical assistance was provided. A police report was filed. The vehicle was deemed a total loss by the police officer. The vehicle was towed to a tow lot, pending assessment from the insurance company. The dealer and the manufacturer were not yet contacted. The failure mileage was approximately 55,000.
GMC TERRAIN 2024 UNKNOWN OR OTHER
lowthis just started on it's own. back up rear camera shows distortion from time to time and appears to be getting worse or happening more.
GMC TERRAIN 2024 POWER TRAIN
lowWhile driving the vehicle, the engine light came on, plus message board said service transmission and the engine went into limp mode. We let the car sit for awhile and checked the car. A scan said it was the pressure solenoid A in the transmission. The car sat for a day and the light was off. Drove the car and then it acted up again and now reverse doesn't work.
GMC TERRAIN 2024 POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER
mediumThe contact owns a 2024 GMC Terrain. The contact became aware of a fluid leak underneath the vehicle. There was no warning light illuminated. The vehicle was driven to a local dealer, where it was diagnosed with a leaking torque converter seal, allowing transmission fluid to leak onto the ground. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 3,787.
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product.status_history
status.certified→status.safe9 Jun 2026
Lemon Score: 88. 21 data points. v3 scoring.
status.uncertain→status.certified31 May 2026
Lemon Score: 92. 8 data points. v3 scoring.