GMC Terrain

2018 only

322 classified complaints 5 recalls

114,311 sold in the US for 2018.

28 complaints on file
per 10,000 sold

2018 GMC Terrain have 322 classified complaints on record for that year specifically, plus 5 recalls. The most common issue in this year is Master cylinder and booster, typically surfacing around 54,569 miles.

Computed directly from stored federal records for 2018 model years only — not blended with the rest of this vehicle's production run. See the full GMC Terrain report for every year combined.

Where this year fits

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2018

2019

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2021

2022

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2024

Complaints filed per individual model year — highlighted bars link to their own dedicated page.

What breaks, and when — 2018 only

Master cylinder and booster · Brakes 90 complaints · 7.9/10k sold

Median onset: 54,569 miles. 1.1% of these reported an injury, a death, or a crash with fire.

Tends to show up later than this model's other issues. · More common in newer model years.

Harsh, delayed or erratic shifting · Transmission 36 complaints · 3.1/10k sold

Median onset: 8,000 miles.

More common in newer model years.

Body control and other modules · Electrical 31 complaints · 2.7/10k sold

Median onset: 2,500 miles.

Tends to show up earlier than this model's other issues. · More common in newer model years.

Internal engine (bearings, pistons, rings) · Engine 29 complaints · 2.5/10k sold

Median onset: 90,500 miles.

Tends to show up later than this model's other issues. · More common in older model years.

Airbags, seatbelts and restraints · Body and interior 22 complaints · 1.9/10k sold

Median onset: 5,250 miles. 27.3% of these reported an injury, a death, or a crash with fire.

Tends to show up earlier than this model's other issues. · More common in older model years.

Stalling and no-start · Engine 15 complaints · 1.3/10k sold

Median onset: 10,608 miles.

More common in older model years.

Wiring harness, grounds and connectors · Electrical 10 complaints · 0.9/10k sold

Median onset: 2,040 miles.

Tends to show up earlier than this model's other issues. · More common in newer model years.

Infotainment, screen and software · Electrical 9 complaints · 0.8/10k sold

Median onset: 27,000 miles.

Tends to show up later than this model's other issues. · More common in newer model years.

From owner-filed complaints to NHTSA, not independently verified. Federal mileage reporting on recent complaints is sparse — see how it works.

Cost estimator: what will this one cost you?

Enter the car's year and mileage. See which known problems are due in your next 3 years, what each costs at your state's labor rates, which ones to ask the seller about, and routine maintenance to budget for.

Sources: NHTSA Office of Defects Investigation — complaints and recalls, scoped to 2018 model year. See the full GMC Terrain report for every year and full specs/safety data.