The GMC Acadia II, specifically the 3.6-liter V6 variant paired with an automatic transmission, represents a significant iteration in GMC’s mid-size crossover SUV lineup. Produced from 2016 to 2019, this version of the Acadia aimed to balance family-friendly space with a more manageable size and improved fuel efficiency compared to its predecessor. Positioned as a mainstream offering within the Acadia II range, it served as the primary volume seller, slotting between the base four-cylinder model (later discontinued) and the potential for higher trim levels with more luxurious appointments. This model year marked a substantial redesign for the Acadia, moving to a smaller platform – the C1XX – compared to the previous generation’s larger Lambda platform.
Technical Specifications
| Brand | GMC |
| Model | Acadia |
| Generation | Acadia II |
| Type (Engine) | 3.6 V6 (310 Hp) Automatic |
| Start of production | 2016 |
| End of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV, Crossover |
| Seats | 7 |
| Doors | 5 |
| Fuel consumption (urban) | 13 l/100 km (18.1 US mpg, 21.7 UK mpg, 7.7 km/l) |
| Fuel consumption (extra urban) | 9.4 l/100 km (25 US mpg, 30.1 UK mpg, 10.6 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Power | 310 Hp @ 6600 rpm |
| Power per litre | 85 Hp/l |
| Torque | 373 Nm @ 5000 rpm (275.11 lb.-ft. @ 5000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | LGX |
| Engine displacement | 3649 cm3 (222.68 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 95 mm (3.74 in.) |
| Piston Stroke | 85.8 mm (3.38 in.) |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC, VVT |
| Engine oil capacity | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Coolant | 11.4 l (12.05 US qt | 10.03 UK qt) |
| Trunk (boot) space – minimum | 362 l (12.78 cu. ft.) |
| Trunk (boot) space – maximum | 2237 l (79 cu. ft.) |
| Fuel tank capacity | 72 l (19.02 US gal | 15.84 UK gal) |
| Length | 4917 mm (193.58 in.) |
| Width | 1915 mm (75.39 in.) |
| Height | 1745 mm (68.7 in.) |
| Wheelbase | 2858 mm (112.52 in.) |
| Front track | 1638 mm (64.49 in.) |
| Rear (Back) track | 1638 mm (64.49 in.) |
| Ride height (ground clearance) | 182 mm (7.17 in.) |
| Minimum turning circle (turning diameter) | 11.8 m (38.71 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission Hydra-Matic |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 245/65 R17; 235/65 R18; 235/55 R20 |
| Wheel rims size | 17; 18; 20 |
Powertrain & Engine Architecture
At the heart of the Acadia II 3.6L is the LGX engine, a 3.6-liter naturally aspirated V6. This engine utilizes direct fuel injection, a technology that improves fuel efficiency and power output by injecting fuel directly into the combustion chamber. The engine also features a Double Overhead Camshaft (DOHC) valvetrain with Variable Valve Timing (VVT), further optimizing performance and efficiency. The LGX engine is known for its relatively smooth operation and adequate power delivery for everyday driving. Paired with this engine is the Hydra-Matic 6-speed automatic transmission. This transmission is a conventional torque converter automatic, offering smooth shifts and a focus on comfort rather than outright performance. The transmission’s gear ratios are tuned for fuel economy and drivability, prioritizing acceleration from a stop and providing sufficient power for highway cruising.
Driving Characteristics
The 310 horsepower and 275 lb-ft of torque provided by the 3.6L V6 and 6-speed automatic combination deliver adequate performance for the Acadia II. Acceleration is respectable, though not particularly sporty. The automatic transmission generally shifts smoothly, but can sometimes feel hesitant during quick acceleration maneuvers. Compared to potential upgrades or the earlier V8 options, this configuration prioritizes fuel economy and a more relaxed driving experience. The front-wheel-drive layout contributes to better fuel efficiency but limits traction in adverse weather conditions. All-wheel drive was available as an option, improving handling and stability.
Equipment & Trim Levels
The Acadia II 3.6L Automatic typically came standard with features such as tri-zone automatic climate control, a 7-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, and a rearview camera. Higher trim levels, such as the SLT and Denali, added features like leather upholstery, heated front seats, a power liftgate, and advanced safety technologies like blind-spot monitoring and rear cross-traffic alert. Interior upholstery generally consisted of cloth in base models, with leather options available on higher trims. Dashboard configurations were relatively consistent across trims, with variations in trim materials and accent lighting.
Chassis & Braking
The Acadia II utilizes an independent suspension system at all four wheels. The front suspension employs a McPherson strut design with coil springs and an anti-roll bar, while the rear suspension features a multi-link setup. This suspension configuration provides a comfortable ride quality, absorbing bumps and irregularities in the road surface effectively. Braking duties are handled by ventilated discs at all four corners, providing adequate stopping power. An Anti-lock Braking System (ABS) is standard, enhancing safety during emergency braking situations. The steering system is an electric power-assisted rack and pinion setup, offering responsive steering feel and ease of maneuverability.
Market Reception & Comparison
The Acadia II 3.6L Automatic was generally well-received by critics and consumers alike. It was praised for its spacious interior, comfortable ride, and improved fuel economy compared to the previous generation. However, some reviewers noted that the engine could feel strained when fully loaded or during aggressive driving. Compared to competitors like the Honda Pilot and Toyota Highlander, the Acadia II offered a competitive combination of features, space, and value. Fuel economy figures were generally in line with other V6-powered crossovers in its class. Reliability reports have been mixed, with some owners reporting issues with the transmission and fuel system, while others have experienced few problems.
Legacy
The GMC Acadia II 3.6L Automatic remains a popular choice in the used car market. Its combination of practicality, comfort, and affordability makes it an attractive option for families seeking a mid-size crossover SUV. The LGX V6 engine, while not known for exceptional performance, has proven to be reasonably reliable with proper maintenance. The Hydra-Matic 6-speed automatic transmission, however, is a potential area of concern, as some units have experienced issues with shifting and durability. Overall, the Acadia II 3.6L Automatic represents a solid and dependable vehicle that continues to offer good value for its price.
