The GMC Terrain II, specifically the 1.5-liter (170 hp) AWD Start/Stop Automatic variant, represents a significant entry in the compact crossover SUV market for General Motors. Produced from 2017 to 2021, this version of the Terrain aimed to balance fuel efficiency, all-weather capability, and a relatively accessible price point within the broader Terrain II lineup. It was positioned as a mid-range offering, slotting between the base front-wheel-drive models and the more powerful, often better-equipped, higher-trim levels. The Terrain II, built on the GM Theta platform, was intended to appeal to families and individuals seeking a practical and versatile vehicle for daily commuting and weekend adventures.
Technical Specifications
| Brand | GMC |
| Model | Terrain |
| Generation | Terrain II |
| Type (Engine) | 1.5 (170 Hp) AWD Start/Stop Automatic |
| Start of production | 2017 |
| End of production | 2021 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel Type | Petrol (Gasoline) |
| Power | 170 Hp @ 5600 rpm |
| Power per litre | 114.1 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 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC-VVT |
| 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 | 838 l / 29.59 cu. ft. |
| Trunk (boot) space – maximum | 2294 l / 81.01 cu. ft. |
| Fuel tank capacity | 59 l / 15.59 US gal | 12.98 UK gal |
| Permitted trailer load with brakes (12%) | 680 kg / 1499.14 lbs. |
| Length | 4630 mm / 182.28 in. |
| Width | 1839 mm / 72.4 in. |
| Height | 1661 mm / 65.39 in. |
| Wheelbase | 2725 mm / 107.28 in. |
| Front track | 1582 mm / 62.28 in. |
| Rear (Back) track | 1588 mm / 62.52 in. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 9 gears, automatic transmission |
| Front suspension | Independent type McPherson |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 235/60 R17; 235/55 R18; 235/55 R19 |
| Wheel rims size | 17; 18; 19 |
Powertrain & Engine Architecture
The heart of this Terrain variant is the LYX 1.5-liter turbocharged inline-four cylinder engine. This engine utilizes direct injection and a variable valve timing (VVT) system to optimize both power and fuel economy. The turbocharger, coupled with an intercooler, helps to mitigate turbo lag and provide a broader torque curve. The engine produces 170 horsepower at 5600 rpm and 275 Nm (202.83 lb-ft) of torque between 2000 and 4000 rpm. This engine is paired with a sophisticated 9-speed automatic transmission, designed to maximize efficiency and provide smooth gear changes. The Start/Stop system further contributes to fuel savings by automatically shutting off the engine when the vehicle is stationary, such as at traffic lights.
Driving Characteristics
The 1.5-liter engine and 9-speed automatic combination delivers adequate, though not exhilarating, performance. Acceleration is sufficient for everyday driving situations, but the Terrain doesn’t feel particularly quick. The 9-speed transmission is generally well-behaved, offering smooth shifts, but some drivers have reported occasional hesitation or hunting for the right gear. Compared to the available 2.0-liter turbocharged engine offered in higher trims, the 1.5-liter lacks the same level of responsiveness. However, the 1.5L offers a more refined and fuel-efficient driving experience, particularly in city driving. The all-wheel-drive system provides enhanced traction in inclement weather, making it a practical choice for regions with snow or rain.
Equipment & Trim Levels
The 1.5L AWD Start/Stop Terrain typically came standard with features such as a 7-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, a rearview camera, keyless entry, and automatic climate control. Higher trim levels, often available as optional packages, added features like leather upholstery, heated front seats, a larger touchscreen display, a premium audio system, and advanced safety technologies such as blind-spot monitoring and rear cross-traffic alert. Interior upholstery generally consisted of cloth in the base trims, with leatherette or genuine leather available on higher-spec models. Dashboard configurations were relatively consistent across the lineup, with a focus on user-friendliness and practicality.
Chassis & Braking
The Terrain II utilizes an independent McPherson strut suspension in the front and an independent multi-link suspension in the rear, providing a comfortable ride quality. The suspension is tuned to prioritize comfort over sporty handling. Front brakes are ventilated discs, while rear brakes are solid discs. All Terrain II models are equipped with an Anti-lock Braking System (ABS) as standard. Steering is provided by an electric power steering system, offering a light and responsive feel. Wheel sizes varied depending on the trim level, ranging from 17 to 19 inches.
Market Reception & Comparison
Critics generally viewed the 1.5-liter Terrain as a competent and fuel-efficient option in the compact crossover segment. However, some reviewers noted that the engine could feel underpowered, especially when fully loaded or climbing hills. Fuel economy was a strong point, with EPA estimates typically around 26 mpg combined. Compared to other trims in the Terrain lineup, the 1.5-liter offered a more affordable entry point, but at the expense of performance. Competitors such as the Honda CR-V, Toyota RAV4, and Mazda CX-5 often received higher praise for their driving dynamics and overall refinement.
Legacy
The 1.5-liter LYX engine, while not known for being a particularly groundbreaking powertrain, has proven to be reasonably reliable in the Terrain II. Common issues reported by owners include occasional turbocharger problems and minor software glitches with the infotainment system. However, these issues are not widespread and are often covered under warranty. On the used car market, the 1.5-liter Terrain II represents a good value proposition for buyers seeking a practical and affordable crossover SUV. Its fuel efficiency and all-wheel-drive capability make it a suitable choice for a variety of driving conditions. While it may not offer the same level of performance or luxury as higher-trim models, it remains a viable option for budget-conscious consumers.
