Everything NHTSA's vPIC database knows about this exact vehicle:
Decoding from NHTSA…
Vehicle history — accidents, title & owners
The decode above is what this vehicle is. For what it's been through — accidents, title brands, odometer, theft/total-loss and previous owners — pull a full history report.
NHTSA publishes the first 11 characters of the VIN with every complaint — that identifies the plant, model year, body and engine. So these are reports from cars built exactly like this one, not an average across the whole model.
3GKALTEV6JL••••••2018 Gmc TERRAIN
This build draws 2.2× more complaints than the average 2018 Gmc TERRAIN build (5 vs 2).
5on this build
214on the model
96builds in total
Most reportedService Brakes 3Power Train 2Engine 1Fuel/propulsion System 1
What owners of this build wrote
Service BrakesDec 2025
The contact owns a 2018 GMC Terrain. The contact stated that while driving approximately 30 MPH, the brake pedal became extremely difficult to depress, with the message "Brake Assist" displayed. The vehicle was driven to the shoulder of the roadway and the parking brake was…
Power TrainMar 2024
My check engine light comes on intermittently, since March 2024, after having Cabin & Engine air filters replaced. Each time, I’m told it is code P0171. This has happened too many times for my comfort. Usually, it happens around the time my gas gets below 1/2 tank or after I…
Service BrakesJul 2023
Driving on highway and all of a sudden I could not break - the car breaks failed to operate - had to slowdown by it self and pull to a McDonalds, I had the loss of effective braking with no warning whatsoever. We found out that the Break Booster Pump was destroyed without any…
Power TrainApr 2022
When you're sitting at idle in gear and go to accelerate the transmission will slip out of gear into neutral then into gear after the rpms climb. This happens alot. According to the dealership this is normal based on information from a bulletin from GMC
Service BrakesMay 2019
Bought brand new. At 14,000 miles all 4 rotors are pitted with grooves. Dealer took them apart and found nothing that could cause it. Said they were "weathered". Took it to 2 other places and said it was a manufacture defect. Dealer wont replace because bumper to bumper wont…
Owner complaints…
Now the whole model — all 96 builds of it, not just this build. Same NHTSA reports, wider net:
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The original window sticker and factory options
Full research report as a PDF you can hand to a mechanic
Decoded via NHTSA vPIC. Recalls, complaints and safety from NHTSA; MPG from EPA fueleconomy.gov. Full history reports from our partner. VIN 3GKALTEV6JL378902 · decoded Sep 2026. — ForCar Reviewed by Denis Kataev, founder of ForCar.