The GMC Acadia II, specifically the facelifted version produced from 2020 to 2023, represents a significant iteration of GMC’s mid-size crossover SUV. This variant, equipped with the 3.6-liter V6 engine producing 310 horsepower and paired with an all-wheel-drive system and a 9-speed automatic transmission, occupied a prominent position in the Acadia lineup as a well-equipped, capable, and family-oriented vehicle. It aimed to bridge the gap between the more basic trims and the higher-end Denali models, offering a balance of performance, features, and price. The 2020 facelift brought updated styling, enhanced technology, and refinements to the driving experience, solidifying the Acadia’s appeal in the competitive three-row crossover segment.
Technical Specifications
| Brand | GMC |
| Model | Acadia |
| Generation | Acadia II (facelift 2020) |
| Type (Engine) | 3.6 V6 (310 Hp) AWD Automatic |
| Start of production | 2020 |
| End of production | 2023 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV, Crossover |
| Seats | 7 |
| Doors | 5 |
| Fuel consumption (urban) | 13.1 l/100 km (18 US mpg, 21.6 UK mpg, 7.6 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) |
| Weight-to-power ratio | 6.3 kg/Hp, 158.7 Hp/tonne |
| Weight-to-torque ratio | 5.2 kg/Nm, 191 Nm/tonne |
| Power | 310 Hp @ 6600 rpm |
| Power per litre | 85 Hp/l |
| Torque | 373 Nm @ 5000 rpm (275.11 lb.-ft. @ 5000 rpm) |
| 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 | 85.6 mm (3.37 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 | 10.6 l (11.2 US qt | 9.33 UK qt) |
| Kerb Weight | 1953 kg (4305.63 lbs.) |
| Trunk (boot) space – minimum | 362 l (12.78 cu. ft.) |
| Trunk (boot) space – maximum | 2237 l (79 cu. ft.) |
| Fuel tank capacity | 83 l (21.93 US gal | 18.26 UK gal) |
| Permitted trailer load with brakes (12%) | 1814 kg (3999.19 lbs.) |
| Length | 4917 mm (193.58 in.) |
| Width | 1915 mm (75.39 in.) |
| Height | 1676 mm (65.98 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) | 183 mm (7.2 in.) |
| Minimum turning circle (turning diameter) | 11.8 m (38.71 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 9 gears, automatic transmission Hydra-Matic T65 |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs, 320 mm |
| Rear brakes | Ventilated discs, 315 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 245/65 R17; 255/65 R17; 235/65 R18; 235/55 R20 |
| Wheel rims size | 17; 18; 20 |
Powertrain & Engine Architecture
At the heart of this Acadia variant lies the LGX 3.6-liter V6 engine. This engine is a naturally aspirated, aluminum-block engine featuring direct fuel injection and a double overhead camshaft (DOHC) valvetrain with variable valve timing (VVT). The direct injection system optimizes combustion efficiency and contributes to the engine’s responsive power delivery. The LGX engine is known for its relatively smooth operation and adequate power for everyday driving and towing. The engine produces 310 horsepower at 6600 rpm and 275 lb-ft of torque at 5000 rpm. This power is then channeled through a sophisticated 9-speed Hydra-Matic T65 automatic transmission. This transmission offers a wide range of gear ratios, contributing to both fuel efficiency and improved acceleration. The all-wheel-drive system is primarily front-wheel drive, automatically engaging the rear wheels when traction is needed.
Driving Characteristics
The 3.6L V6 and 9-speed automatic combination in the Acadia delivers a comfortable and capable driving experience. While not a performance-oriented setup, it provides sufficient power for merging onto highways, overtaking, and navigating city streets. The 9-speed transmission is generally smooth-shifting, although some drivers have noted occasional hesitation at lower speeds. Compared to the base 2.0-liter turbocharged engine, the V6 offers significantly more power and a more relaxed driving experience, especially when fully loaded with passengers and cargo. Compared to the higher-end Denali trims, which sometimes offered more advanced suspension tuning, the standard suspension in this variant provides a good balance of ride comfort and handling. The all-wheel-drive system enhances stability and traction in inclement weather conditions.
Equipment & Trim Levels
The 3.6L V6 AWD Acadia typically came in SLE, SLT, and AT4 trim levels. Standard features on the SLE included tri-zone automatic climate control, an 8-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, and a suite of safety features like automatic emergency braking and lane keeping assist. The SLT trim added features such as leather upholstery, heated front seats, a power liftgate, and a larger touchscreen display. The AT4 trim focused on off-road capability with unique styling cues, a more robust all-wheel-drive system, and enhanced suspension tuning. Optional extras included a panoramic sunroof, a rear-seat entertainment system, and a premium Bose audio system.
Chassis & Braking
The Acadia II utilizes a unibody construction with independent front and rear suspension. 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, also with coil springs and a stabilizer bar. This suspension configuration provides a comfortable ride and predictable handling. Braking duties are handled by ventilated discs on all four wheels, providing adequate stopping power for a vehicle of this size and weight. The electronic stability control system and anti-lock braking system (ABS) work in conjunction to enhance safety and control.
Market Reception & Comparison
The 2020-2023 GMC Acadia with the 3.6L V6 and AWD received generally positive reviews. Critics praised its spacious interior, comfortable ride, and user-friendly technology. Fuel economy was considered average for the segment, with EPA estimates around 18 mpg city and 25 mpg highway. Compared to competitors like the Honda Pilot and Toyota Highlander, the Acadia offered a more stylish design and a more powerful base engine. However, some reviewers noted that the interior materials weren’t quite as premium as those found in some rivals. Reliability ratings were generally average, with some reports of minor issues with the infotainment system and transmission.
Legacy
The LGX 3.6L V6 engine has proven to be a relatively reliable powertrain when properly maintained. While not immune to issues, major engine failures are uncommon. The 9-speed automatic transmission has received some criticism for occasional rough shifting, but most owners report satisfactory performance. On the used car market, the 2020-2023 Acadia with the V6 engine and AWD holds its value reasonably well, particularly in well-maintained condition. It remains a popular choice for families seeking a spacious, capable, and comfortable crossover SUV.
