2024 GMC Terrain

Typical pattern

18.7% of complaints about the 2024 GMC Terrain came in the first year, which is unremarkable for a 2024 vehicle — around the middle of the 178 model-years on record. The median complaint arrives at 1.8 yr in service. The most-reported system is power train (21 complaints), typically at 1.8 yr or about 3,787 miles.

Complaints: 75
Median age at failure: 1.8 yr
Median mileage: 6,766 n=9
Crash / fire / tow: 5.3% of reports
Safety recalls: 1

Safety recalls — NHTSA campaigns

23V869000 2023-12-21

Structure:body:door

General Motors, LLC (GM) is recalling certain 2024 Chevrolet Blazer, Blazer EV, Equinox, and GMC Terrain vehicles. The door strikers may fracture, resulting in the door opening unexpectedly.

A door opening while the vehicle is being driven can increasing the risk of injury or a crash.

In owners’ own words

Power train mileage not reported 1.5 yr in service

When accelerating, the engine revved up, switched itself from drive to park, resulting in complete loss of control and the vehicle coming to a sudden stop. The car behind narrowly avoided a rear-end collision by swerving around me. The malfunction indicator light came on for the first time, and the vehicle would not switch out of park. After turning the ignition off and on again, the vehicle would switch out of park. The GMC service inspector ran diagnostics and found fault codes related to the transmission valve components that must be replaced.

Power train mileage not reported 2.3 yr in service

Powertrain System failure while driving, causing complete loss of power on road. The car lacks any accessible manual overrides to put in neutral or turn off parking break. This leaves the car stuck in park with all four wheels locked in the middle of the road in an incident with no safe way to move or tow the vehicle. When attempting to tow car must be dragged, and parking brake continuously engages. Tow attempt took nearly 3 hours to saddle the vehicle in the roadway. Vehicle currently awaiting formal inspection/repair from dealership.

Power train mileage not reported 1.5 yr in service

Transmission dropped complete out of gear while driving. Got vehicle moving again. Took to dealership. Found complete internal transmission failure at 6779 miles. Transmission replaced with new unit. New transmission has erratic / hard shifts. Found replacement transmission leaking fluid due to front pump / porous case at 14800 miles. Customer Satisfaction Program N232433890 issued May 16, 2024

Other Terrain model years

How to read this

This is what owners reported, not a reliability rating. People file with NHTSA about alarming failures, not routine ones, and complaint volume tracks how many cars were sold.
Failure ages come from the incident date on each complaint, populated on about 83% of records. Mileage is shown where reported — NHTSA’s 2021 system change cut mileage capture to roughly 15%, so it thins out sharply after MY2020.
Every rank compares this vehicle only against others of the same model year. A 2025 car has not had time to accumulate five-year failures, so comparing early-failure share across years is meaningless.
Fourteen make-months distorted by media storms and mass recalls — Toyota in February 2010 ran 11× normal volume across 33 models — are excluded.
Recalls are manufacturer actions and authoritative; complaints are not. A recall listed here may already have been performed on any individual car. Check a specific VIN at nhtsa.gov/recalls.

2024 GMC Terrain

When each system is reported — middle 50% of complaints

Safety recalls — NHTSA campaigns

In owners’ own words

Other Terrain model years

How to read this