Fuel Economy
23–27MPG
Gas & Hybrid options available
NHTSA Complaints
192
7 crash reports • 3 reporting injuries
Safety Recalls
2
2 official NHTSA recalls
NCAP Safety Rating
Not Rated / Pending

EPA Fuel Economy & Powertrain Specifications

Official EPA laboratory test ratings, electric driving range, and annual energy cost estimates by powertrain configuration

Powertrain Group Engine / Drivetrain City MPG Hwy MPG Combined MPG Est. Annual Fuel Cost
Standard 1.5L 4-Cyl Regular
Automatic 9-spd • Front-Wheel Drive
21–26 26–30 23–27 MPG $2,300–$3,300 / yr

NHTSA NCAP Crash Test & Safety Ratings

Official 5-Star Safety Ratings evaluated by the National Highway Traffic Safety Administration

NHTSA 5-Star NCAP laboratory crash evaluations are not currently on file for the 2020 GMC Terrain.

Active Driver Assistance Systems (NHTSA Recorded): Forward Collision Warning (FCW) is documented as Not Specified and Lane Departure Warning (LDW) is documented as Not Specified in official NHTSA records for tested 2020 GMC Terrain models.
View complete 2020 GMC Terrain crash test & safety breakdown →

Reported Problems & Owner Complaints Summary (192)

Summary of 192 verified consumer defect submissions filed with the NHTSA Office of Defects Investigation (ODI)

Total Complaints
192
Crash Reports
7
Fire Reports
2
Complaints w/ Injury
3
Total Injuries
5

Top Reported Problem Categories

Ranked by total consumer complaint submissions recorded by NHTSA

Service Brakes 35 complaints (3 crashes)
SERVICE BRAKES,ENGINE 12 complaints
Engine 11 complaints
Electrical System 10 complaints
Fuel & Propulsion System 9 complaints

Data Attribution & Context: Complaints are self-reported by vehicle owners to NHTSA and represent unverified consumer submissions. Complaint volume does not equal a statistically controlled failure rate and is not adjusted for total vehicles sold or cumulative mileage driven.

View all 2020 GMC Terrain problems & component breakdown (66 categories) →

Official Safety Recalls (2)

Manufacturer safety recall campaigns monitored and recorded by NHTSA

NHTSA Campaign #20V668000 Active Recall
Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION

Defect Summary: General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.

Free Manufacturer Remedy: GM will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202313440.
NHTSA Campaign #23V339000 Active Recall
Affected Component: CHILD SEAT:VEHICLE LATCH ANCHOR

Defect Summary: General Motors, LLC (GM) is recalling certain 2020-2023 Chevrolet Equinox and GMC Terrain vehicles. The four rear-seat lower child seat LATCH anchorage bars may have excessive powder coating, which could prevent a child seat from being installed with the anchorage bars. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 225, "Child Restraint Anchorage Systems."

Free Manufacturer Remedy: Owners are advised to install child seats using the vehicle's rear seat belts until the remedy is complete. Dealers will inspect the latch anchorage bars, and remove and replace the finish, as necessary, free of charge. Owner notification letters were mailed June 2, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N232403240.
View all 2020 GMC Terrain recalls & campaign history (2 campaigns) →
Official US Government Data Provenance

The specifications, safety ratings, defect reports, and recall campaigns published on this page are retrieved directly from official United States Government agency databases:

  • NHTSA Office of Defects Investigation (ODI): Consumer complaints and defect reports.
  • NHTSA New Car Assessment Program (NCAP): Frontal, side, and rollover 5-Star crash safety test ratings.
  • U.S. EPA / FuelEconomy.gov: Standardized multi-cycle dynamometer fuel economy, MPGe, and electric driving range ratings.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.