The GMC Terrain III 1.5L Turbo AWD Automatic, introduced in August 2024, represents the latest iteration of GMC’s compact SUV offering. This variant occupies a key position within the Terrain III lineup, aiming to balance fuel efficiency with capable all-wheel-drive performance. It builds upon the foundation of the redesigned Terrain III, which shares its platform with the Chevrolet Equinox and Buick Envision. The 1.5L Turbo AWD Automatic is positioned as a mainstream offering, appealing to buyers seeking a practical and well-equipped SUV for everyday use and light-duty adventures.
Technical Specifications
| Brand | GMC |
| Model | Terrain |
| Generation | Terrain III |
| Type (Engine) | 1.5L Turbo (177 Hp) AWD Automatic |
| Start of production | August, 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel Type | Petrol (Gasoline) |
| Power | 177 Hp @ 5600 rpm |
| Power per litre | 118.8 Hp/l |
| Torque | 275 Nm @ 2000-4000 rpm / 202.83 lb.-ft. @ 2000-4000 rpm |
| Engine layout | Front, Transverse |
| Engine Model/Code | LYX |
| Engine displacement | 1490 cm3 / 90.93 cu. in. |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 74 mm / 2.91 in. |
| Piston Stroke | 86.6 mm / 3.41 in. |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5 l / 5.28 US qt | 4.4 UK qt |
| Coolant | 6.6 l / 6.97 US qt | 5.81 UK qt |
| Trunk (boot) space – minimum | 844 l / 29.81 cu. ft. |
| Trunk (boot) space – maximum | 1799 l / 63.53 cu. ft. |
| Permitted trailer load with brakes (12%) | 680 kg / 1499.14 lbs. |
| Length | 4597 mm / 180.98 in. |
| Width | 1892 mm / 74.49 in. |
| Height | 1680 mm / 66.14 in. |
| Wheelbase | 2730 mm / 107.48 in. |
| Front track | 1626 mm / 64.02 in. |
| Rear (Back) track | 1628 mm / 64.09 in. |
| Ride height (ground clearance) | 205 mm / 8.07 in. |
| Minimum turning circle (turning diameter) | 11.3 m / 37.07 ft. |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels permanently, and the rear wheels are driven through an electrically or mechanically operated clutch if necessary. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission |
| Front suspension | Independent type McPherson |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs, 300×26 mm |
| Rear brakes | Disc, 288×12 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 235/65 R17; 235/55 R19 |
| Wheel rims size | 17; 19 |
Powertrain & Engine Architecture
At the heart of the Terrain III 1.5L Turbo AWD Automatic lies the LYX engine, a 1.5-liter inline-four cylinder gasoline engine. This engine utilizes direct injection and a single turbocharger with an intercooler to deliver a balance of power and efficiency. The direct injection system precisely meters fuel into the combustion chambers, optimizing combustion and reducing emissions. The turbocharger boosts power output by forcing more air into the engine, while the intercooler cools the compressed air, further enhancing performance. The engine is paired with an eight-speed automatic transmission, designed for smooth and efficient gear changes. This transmission is electronically controlled and features overdrive for improved highway fuel economy. The engine also incorporates a Start & Stop system, which automatically shuts off the engine when the vehicle is stationary to conserve fuel.
Driving Characteristics
The 177 horsepower and 275 Nm (202.83 lb-ft) of torque produced by the 1.5L Turbo engine provide adequate performance for everyday driving situations. Acceleration is reasonably brisk, though not as spirited as higher-output Terrain trims. The eight-speed automatic transmission contributes to a smooth driving experience, with well-chosen gear ratios that keep the engine in its optimal power band. The all-wheel-drive system enhances traction in various weather conditions, providing added confidence on slippery surfaces. Compared to the base engine option (if available), the 1.5L Turbo offers a noticeable improvement in performance. However, it doesn’t match the responsiveness of potential future higher-performance trims. The automatic transmission, while convenient, may not offer the same level of driver engagement as a manual transmission, if one were offered.
Equipment & Trim Levels
The Terrain III 1.5L Turbo AWD Automatic typically comes standard with a comprehensive suite of features. These generally include an infotainment system with a touchscreen display, Apple CarPlay and Android Auto compatibility, keyless entry, and a suite of advanced driver-assistance systems (ADAS) such as automatic emergency braking, lane departure warning, and lane keep assist. Interior upholstery is typically cloth, with available upgrades to leatherette or leather. Higher trim levels may add features such as a power liftgate, heated front seats, a panoramic sunroof, and a premium audio system. Optional extras often include navigation, adaptive cruise control, and a surround-view camera system.
Chassis & Braking
The Terrain III utilizes an independent suspension system, with McPherson struts at the front and a multi-link setup at the rear. This suspension configuration provides a comfortable ride quality while maintaining good handling characteristics. The all-wheel-drive system adds to the vehicle’s stability and control. Braking duties are handled by ventilated discs at the front and solid discs at the rear. The vehicle is equipped with an Anti-lock Braking System (ABS) to prevent wheel lockup during hard braking. Steering is provided by an electric power steering system, which offers precise and responsive control.
Market Reception & Comparison
The GMC Terrain III 1.5L Turbo AWD Automatic has been generally well-received by automotive critics. Reviewers have praised its comfortable ride, spacious interior, and user-friendly technology. Fuel economy is considered competitive within its class. Compared to other trims in the Terrain lineup, the 1.5L Turbo AWD Automatic offers a good balance of performance and efficiency. It’s a more compelling option than the base engine for drivers who prioritize power, but it’s more affordable than higher-output trims. In terms of reliability, the LYX engine is relatively new, so long-term data is still emerging. However, GMC has a generally good reputation for build quality and reliability.
Legacy
As a relatively recent addition to the GMC lineup, the long-term reliability of the Terrain III 1.5L Turbo AWD Automatic remains to be fully established. However, the LYX engine is based on a proven architecture used in other General Motors vehicles, which suggests a reasonable expectation of durability. The combination of a turbocharged engine, an eight-speed automatic transmission, and all-wheel drive is becoming increasingly common in the compact SUV segment, indicating a trend towards more sophisticated and capable vehicles. In the used car market, the Terrain III 1.5L Turbo AWD Automatic is expected to hold its value reasonably well, particularly among buyers seeking a practical and well-equipped SUV with all-weather capability.
