2018 GMC Terrain Specifications Overview

The 2018 GMC Terrain is certified across 6 configurations with 1.6L Turbo-Diesel Engine, 1.5L 4-Cylinder Engine, 2L 4-Cylinder Engine powertrain options. Available drivetrain layouts include Front-Wheel Drive, All-Wheel Drive paired with Automatic 6-spd or Automatic 9-spd. EPA classified under the Small Sport Utility Vehicle 2WD / Small Sport Utility Vehicle 4WD size category.

Engine / Motors
3 Options
1.6L Turbo-Diesel Engine, 1.5L 4-Cylinder Engine...
Drivetrain Options
2 Drivetrains
Front-Wheel Drive, All-Wheel Drive
Transmissions
2 Options
Automatic 6-spd, Automatic 9-spd
Vehicle Classification
Small SUV 2WD
Official EPA regulatory class

Certified Powertrain & Transmission Configurations (6)

Official laboratory certification specifications for each factory engine, transmission, and drivetrain permutation

Configuration / Model Engine & Displacement Cylinders Induction / Tech Transmission Drivetrain Fuel System
Terrain FWD Small Sport Utility Vehicle 2WD 1.6L Turbo-Diesel Engine 4 Naturally Aspirated Automatic 6-spd Front-Wheel Drive Diesel
Terrain AWD Small Sport Utility Vehicle 4WD 1.6L Turbo-Diesel Engine 4 Naturally Aspirated Automatic 6-spd All-Wheel Drive Diesel
Terrain FWD Small Sport Utility Vehicle 2WD 1.5L 4-Cylinder Engine 4 Naturally Aspirated Automatic 9-spd Front-Wheel Drive Regular
Terrain AWD Small Sport Utility Vehicle 4WD 1.5L 4-Cylinder Engine 4 Naturally Aspirated Automatic 9-spd All-Wheel Drive Regular
Terrain FWD Small Sport Utility Vehicle 2WD 2L 4-Cylinder Engine 4 Naturally Aspirated Automatic 9-spd Front-Wheel Drive Premium
Terrain AWD Small Sport Utility Vehicle 4WD 2L 4-Cylinder Engine 4 Naturally Aspirated Automatic 9-spd All-Wheel Drive Premium
EPA Certification Standards: Powertrain and transmission specifications represent official laboratory configuration records filed under 40 CFR Part 600. For detailed fuel economy ratings, electric range, and annual fuel costs, explore the 2018 GMC Terrain MPG & Range Report.

Regulatory Classification & Safety Architecture

Federal classification standards and standard active driver assistance system capabilities

EPA Regulatory Size Class

  • Small Sport Utility Vehicle 2WD
  • Small Sport Utility Vehicle 4WD

NHTSA NCAP Body Formats

  • 2018 GMC Terrain SUV FWD Later Release
  • 2018 GMC Terrain SUV FWD Early Release
  • 2018 GMC Terrain SUV AWD Later Release
  • 2018 GMC Terrain SUV AWD Early Release

Active Safety Technology

Evaluated under federal safety compliance standards.

Related Official Reports for 2018 GMC Terrain

Cross-reference fuel economy, safety ratings, owner defect complaints, and recall notices

Official US Government Data Provenance

Powertrain, transmission, drivetrain, and regulatory classification specifications on this page are derived directly from the United States Environmental Protection Agency (EPA) and National Highway Traffic Safety Administration (NHTSA) official laboratory certification registries.

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