GMC Terrain AWD
GMC · Cars · 2023
GMC Terrain AWD
94
10 complaints
status.verdict
status.certified
status.certified_sub
product.specifications
specs.g_fuel_economy
specs.city_mpg24
specs.highway_mpg28
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.drivetrainAll-Wheel Drive
CO₂347 g/mi
specs.g_classification
specs.vehicle_classSmall Sport Utility Vehicle 4×4

specs.data_sourced_from FuelEconomy.gov (specs.energy_dept)

product.complaints_section10 total
GMC TERRAIN 2023 UNKNOWN OR OTHER
low
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 waiting to hear back from my mechanic to see what the issue is but so far it is an indication of the fuel pump as well. Both times I required help from law enforcement because vehicle shut off in the middle of the road and safety to myself and other drivers was an issue until tow truck arrived to move my vehicle.
NHTSAUSMay 2026Source →
GMC TERRAIN 2023 UNKNOWN OR OTHER
medium
Car reduced speed and the smell of gas filled the car. Car shut off. Check engine light came on with reduced speed. This is the second time this has happened. Gas leaked onto ground from car. Car stalls immediately while driving and does not allow you to press the gas to keep moving. Almost hit from behind on Main Street.
NHTSAUSMay 2026Source →
GMC TERRAIN 2023 POWER TRAIN
medium
Took dealer 3/26 for Sam issue Engine Power reduced after already cause me hit curb. Got it out 4/1/26 Now 4/5/26 it happened again same codes after they claimed they fixed it. Also keep having Emergency services come on a caused my dashboard out. My issues is car keeps stalling losing power. Same codes as week ago after dealer fix. Also 4 time took for noises in my car from passenger side. They keep telling me they can’t replicate it, but you can clearly see where the door is not lined up. This has been going on for over 30,000 miles for that. Like some of these issues have been going on since the 36,000 but now I’m having issues where I’m losing power like this is insane all before 60,000 miles which I’m about to hit. It’s gonna end up getting me killed on the interstate.
NHTSAUSApr 2026Source →
GMC TERRAIN 2023 UNKNOWN OR OTHER
medium
Took dealer 3/26 for Sam issue Engine Power reduced after already cause me hit curb. Got it out 4/1/26 Now 4/5/26 it happened again same codes after they claimed they fixed it. Also keep having Emergency services come on a caused my dashboard out. My issues is car keeps stalling losing power. Same codes as week ago after dealer fix. Also 4 time took for noises in my car from passenger side. They keep telling me they can’t replicate it, but you can clearly see where the door is not lined up. This has been going on for over 30,000 miles for that. Like some of these issues have been going on since the 36,000 but now I’m having issues where I’m losing power like this is insane all before 60,000 miles which I’m about to hit. It’s gonna end up getting me killed on the interstate. My vin also says it’s fwd it’s awd AT4 . Called dealer said only to update software clearly not the issue. My doors are off and they have refused to fix those for over 30,000 miles now. It won’t let me attach any pics for some reason I’ve tried since yesterday
NHTSAUSApr 2026Source →
GMC TERRAIN 2023 POWER TRAIN
medium
The contact owns a 2023 GMC Terrain. The contact was informed by his wife that while attempting to accelerate from being stationary, the vehicle was shaking abnormally and hesitated before accelerating. There were no warning lights illuminated. The vehicle was taken to the dealer to be diagnosed but the cause of failure was not yet determined. The vehicle was not repaired. The manufacturer was informed of the failure. The manufacturer opened a case for the failure. The failure mileage was approximately 13,000.
NHTSAUSMar 2026Source →
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status.uncertainstatus.certified27 May 2026
Lemon Score: 100. 0 data points. v3 scoring.
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