The Lemon Index2024 GMC Terrain.
The 2024 GMC Terrain is so far better than average by owner complaints: 52 complaints in its first 3 years and a Lemon Index of 74, where 100 is the average car. Owners complain most about transmission & drivetrain, it has 1 recall, and it gets 25 to 26 mpg combined. The best GMC Terrain year is 2017.
Early read
Before you buy. What matters most for this car.
How serious. Out of 52 owner complaints, owners reported:
Every GMC Terrain year. 2024 is highlighted. Lower is better.
What owners complain about most. From owner complaints to the government.
Share of this year's owner complaints filed with NHTSA, not the share of cars that break. One complaint can name more than one area.
When owners reported problems. From owner complaints to the government.
Most owners who filed a complaint with NHTSA had 1K to 22K miles on the car (7 complaints listed the miles). This shows when people who had a problem reported it, not the odds that your car will have it.
Recalls 1
- body structure 2023
The door strikers may fracture, resulting in the door opening unexpectedly.
Recall repairs are free at any dealer. A recall only matters if it's still open on that exact car, so check its VIN.
Problems GMC told dealers about
GMC sent dealers 376 repair notes for this car. The ones about its biggest problems:
- This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine…
Ask a seller or mechanic if these were done. Some are free under warranty or a special program.
Safety
Crash test details
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| GMC Terrain SUV AWD | ★★★★★ | ★★★★★ | ★★★★★ | ★★★★☆ |
| GMC Terrain SUV FWD | ★★★★★ | ★★★★★ | ★★★★★ | ★★★★☆ |
Fuel cost and engines
About $2450–2550 a year in fuel (EPA estimate). Engines: 1.5L 4-cyl.
In owners' words
Leaking transmission fluid at 7,000 miles. Technicians noticed during routine oil change at dealership.
2024 GMC Terrain owner · NHTSA complaint 11749897
More owner reports
While driving several times smelt gas and car cut out engine came on and car stopped mid driving multiple times. Says they replaced fuel pump reset car etc
NHTSA complaint 11723116
Quick answers
Is the 2024 GMC Terrain reliable?
It's too early to be sure. So far it has drawn 1.4× fewer complaints than average per car sold, against other 2024 cars after the same time on the road (early Lemon Index 74; 100 is average). The best GMC Terrain year by this measure is 2017.
What are the most common 2024 GMC Terrain problems?
In owner complaints to the government, the parts named most are transmission & drivetrain (42%), engine (21%) and fuel or ev drive system (19%). That is the share of complaints, not the share of cars that break.
How many recalls does the 2024 GMC Terrain have?
1 safety recall (latest: body structure). Recall repairs are free at any dealer; check a specific car's VIN at nhtsa.gov/recalls.
What gas mileage does the 2024 GMC Terrain get?
25 to 26 mpg combined, depending on the engine (EPA estimate).
Is the 2024 GMC Terrain safe?
NHTSA gave it 5 out of 5 stars overall in its best tested version. Ratings differ by body style, and the full table is on the advanced page.
Does the 2024 GMC Terrain have transmission problems?
Transmission and drivetrain issues make up 42% of its owner complaints.
How much does the 2024 GMC Terrain cost in fuel a year?
About $2450 to $2550 a year, by the EPA's current estimate.
What engines does the 2024 GMC Terrain have?
1.5L 4-cyl.
What GMC Terrain year is better than the 2024?
By owner complaints per car sold, the best recent years are 2017, 2021 and 2016.
Lemon Index = safety complaints filed with the U.S. government (NHTSA) in a car's first 3 years, per car sold, against the average car of the same model year. 100 is average; lower is better. A complaint is an owner's report, not a confirmed defect. How it works