Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2026 Terrain.
The 2026 GMC Terrain represents the latest iteration of General Motors' compact crossover, positioned within a model lineage that has demonstrated substantial evolution in owner satisfaction over the past decade and a half; during that span, complaint volumes have declined from a peak of 397 in 2011 to just 12 in 2025, with the current model year recording 22 total complaints centered around nonspecific categories alongside a single recall, suggesting that while not without minor issues, this generation benefits from the manufacturer's accumulated refinement efforts and stands as arguably the most reliable installment in the Terrain's history.
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
Owner complaints about the 2026 GMC Truck Terrain lead in one area — the unknown or other, 6 of 22 reports (27%), well ahead of the next concern. None of this vehicle's 1 recall campaigns target the unknown or other, so those reports read as owner-reported wear-and-tear rather than an acknowledged defect. 1 of the reports describe a crash and 2 a fire — a small share of the total, but worth weighing against the unknown or other pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.
All 22 complaints on record, top 8 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 1 of 1 campaigns on record for this vehicle.
General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cadillac OPTIQ, Chevrolet Colorado, Equinox EV, GMC Canyon, 2026 Buick Enclave, Envision, Cadillac CT5, Escalade, Escalade ESV, Escalade IQ… Remedy: Dealers will reset the vehicle radio, which will facilitate automatic download of the electronic owner’s manual, free of charge. Owner notification letters were mailed April 16…
Showing 5 of 150 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| PIT5966F | 2026-06-23 | Unknown Or Other | This Preliminary information communicates an issue with an OTA pending message still… |
| 662.20 | 2026-06-22 | Unknown Or Other | • Improvements to the performance of driver assistance features • Fixes to help ensure… |
| PIT6503B | 2026-06-17 | Unknown Or Other | This preliminary information is to inform technicians that GM is placing the B174W Front… |
| N25-252332 | 2026-06-16 | Unknown Or Other | • Fixes to help prevent loss of functionality for connectivity features such as OnStar… |
| PIP6121 | 2026-06-10 | Unknown Or Other | This PI communicates a possible speedometer and/or odometer error due to an error in the… |
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
Decode factory build data for a specific vehicle by VIN.
Cross-vehicle references for the kinds of data on this page.
NHTSA lists 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.