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Home›GMC›GMC Terrain› Problems
Owner complaints · every model year, every system

GMC Terrain problems, by model year and system

1,149 complaints owners filed with NHTSA about the GMC Terrain 2016–2027, and the 3 systems the record is deep on — engine (366), brake (245), transmission and drivetrain (211). Each system has a page across the years; 7 model-year pages go deeper still. Every figure is a linked federal record; none is a failure rate or a verdict on one car.

The systems the record is deep on

Source: NHTSA complaints, recalls, investigations and manufacturer communications
366complaints, engine

Engine problems across every model year, and the years with a page of their own →

245complaints, brakes

Brake problems across every model year, and the years with a page of their own →

211complaints, transmission and drivetrain

Transmission and drivetrain problems across every model year, and the years with a page of their own →

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GMC Terrain complaints, year by system

Source: NHTSA complaint database
Model yearenginebraketransmission and drivetrain
2027 0 in all———
2026 33 in all—45
2025 13 in all234
2024 49 in all11321
2023 39 in all15—7
2022 88 in all15—11
2021 36 in all1288
2020 197 in all617228
2019 185 in all697251
2018 223 in all558341
2017 134 in all80—24
2016 152 in all46—11

Complaints owners filed with NHTSA naming each system, per model year; a bold count links the year’s own page on that system. Counts scale with sales and with time on the road; nothing here is a rate, and NHTSA’s headings are coarse (“Power Train” is the transmission and the driveline).

From here
Every 2027 model on file, by price Compare two vehicles, trim vs trim See what a VIN was priced at See what owners reported

Common questions

Source: NHTSA complaint database

Which GMC Terrain system draws the most complaints?

Engine: 366 complaints across 12 model years, 32% of everything owners filed about the GMC Terrain. A count, not a rate — it says nothing about how many were sold.

Which GMC Terrain year has the most complaints?

2018 (223), 2020 (197), 2019 (185). Older years have had longer to collect them; the year pages show each year's share by system.