The GMC Acadia first arrived in the United States for the 2007 model year, representing GMC’s entry into the burgeoning mid-size crossover SUV segment. Built on the GM Theta Premium platform (later designated as the 1HX0 platform), the Acadia aimed to provide a more upscale and refined alternative to traditional truck-based SUVs, while still offering three-row seating and substantial cargo capacity. The 3.6L V6 with automatic transmission, produced from 2009 to 2013, was a mainstay of the Acadia lineup, offering a balance of power and efficiency for families. This configuration represented a mid-level offering, positioned between the base four-cylinder models (available in some markets) and potential future higher-performance variants.
Technical Specifications
| Brand | GMC |
| Model | Acadia |
| Generation | Acadia I |
| Type (Engine) | 3.6 V6 (288 Hp) Automatic |
| Start of production | 2009 year |
| End of production | 2013 year |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV, Crossover |
| Seats | 7-8 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 13.8 l/100 km (17 US mpg, 20.5 UK mpg, 7.2 km/l) |
| Fuel consumption (economy) – extra urban | 9.8 l/100 km (24 US mpg, 28.8 UK mpg, 10.2 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.4 sec |
| Acceleration 0 – 62 mph | 8.4 sec |
| Acceleration 0 – 60 mph | 8 sec |
| Maximum speed | 175 km/h (108.74 mph) |
| Weight-to-power ratio | 7.4 kg/Hp, 134.5 Hp/tonne |
| Weight-to-torque ratio | 5.8 kg/Nm, 170.9 Nm/tonne |
| Power | 288 Hp @ 6300 rpm |
| Power per litre | 80.8 Hp/l |
| Torque | 366 Nm @ 3400 rpm (269.95 lb.-ft. @ 3400 rpm) |
| Maximum engine speed | 6700 rpm |
| Engine layout | Front, Transverse |
| Engine Model/Code | LLT |
| Engine displacement | 3564 cm3 (217.49 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 94 mm (3.7 in.) |
| Piston Stroke | 85.6 mm (3.37 in.) |
| Compression ratio | 11.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Coolant | 10.8 l (11.41 US qt | 9.5 UK qt) |
| Kerb Weight | 2141 kg (4720.1 lbs.) |
| Max. weight | 2930 kg (6459.54 lbs.) |
| Max load | 789 kg (1739.45 lbs.) |
| Trunk (boot) space – minimum | 558 l (19.71 cu. ft.) |
| Trunk (boot) space – maximum | 3310 l (116.89 cu. ft.) |
| Fuel tank capacity | 83 l (21.93 US gal | 18.26 UK gal) |
| Permitted trailer load with brakes (12%) | 2364 kg (5211.73 lbs.) |
| Length | 5109 mm (201.14 in.) |
| Width | 2004 mm (78.9 in.) |
| Height | 1846 mm (72.68 in.) |
| Wheelbase | 3020 mm (118.9 in.) |
| Front track | 1709 mm (67.28 in.) |
| Rear (Back) track | 1709 mm (67.28 in.) |
| Ride height (ground clearance) | 189 mm (7.44 in.) |
| Minimum turning circle (turning diameter) | 12.3 m (40.35 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 | Hydraulic Steering |
| Tires size | 255/65 R18; 255/60 R19 |
| Wheel rims size | 7.5J x 18; 8J x 19 |
Powertrain & Engine Architecture
The heart of this Acadia variant is the 3.6-liter LLT V6 engine. This engine is a member of GM’s High Feature V6 family, known for its smooth operation and relatively high output. The LLT features an aluminum alloy block and cylinder heads, contributing to weight savings. Direct fuel injection is a key component, allowing for precise fuel delivery and improved combustion efficiency. The engine utilizes a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing airflow for increased power. The 3.6L V6 produces 288 horsepower at 6300 rpm and 269.95 lb-ft of torque at 3400 rpm. This power is delivered to the front wheels via a six-speed Hydra-Matic automatic transmission. This transmission was a common choice for GM vehicles of this era, offering smooth shifts and a wide gear ratio spread. The Hydra-Matic 6L50 transmission is known for its durability, but requires regular fluid changes for optimal performance.
Driving Characteristics
The 3.6L V6 and six-speed automatic combination in the Acadia provided adequate, though not exhilarating, performance. Acceleration from 0-60 mph took approximately 8 seconds, making it competitive with other mid-size crossovers. The automatic transmission was tuned for comfort and fuel economy, resulting in relatively relaxed shift points. Compared to potential higher-output versions (which were not widely offered on the Acadia), this configuration prioritized smoothness and ease of driving over outright speed. The gear ratios were optimized for highway cruising, providing a comfortable experience on long trips. While the automatic transmission lacked the driver engagement of a manual, it simplified operation for everyday driving, particularly in urban environments.
Equipment & Trim Levels
The 3.6L V6 automatic Acadia typically came standard with features such as tri-zone automatic climate control, a premium audio system, power-adjustable front seats, and alloy wheels. Higher trim levels, such as the SLT, added features like leather upholstery, heated front seats, a power liftgate, and a navigation system. Optional extras included a rear-seat entertainment system, sunroof, and upgraded safety features. The interior design was generally considered comfortable and well-appointed for its class, with a focus on family-friendly practicality.
Chassis & Braking
The Acadia’s chassis featured an independent front suspension with McPherson struts and an independent multi-link rear suspension. This setup provided a comfortable ride quality, absorbing bumps and irregularities in the road surface effectively. The Acadia utilized ventilated disc brakes on all four wheels, providing adequate stopping power for its weight class. An anti-lock braking system (ABS) was standard, enhancing safety and control during emergency braking situations. The steering was hydraulic power-assisted, offering a responsive and predictable feel.
Market Reception & Comparison
The GMC Acadia, particularly with the 3.6L V6, was generally well-received by critics and consumers. It was praised for its spacious interior, comfortable ride, and upscale features. Fuel economy was considered average for its class, with EPA estimates around 17 mpg city and 24 mpg highway. Compared to other mid-size crossovers like the Honda Pilot and Toyota Highlander, the Acadia offered a more distinctive styling and a slightly more luxurious interior. However, some critics noted that the Acadia’s handling was not as sporty as some of its competitors.
Legacy
The 3.6L LLT V6 engine proved to be a reliable and durable powertrain in the Acadia. While some owners have reported minor issues with oil consumption over time, the engine generally holds up well with proper maintenance. The Hydra-Matic 6L50 transmission is also considered relatively reliable, provided that fluid changes are performed according to the manufacturer’s recommendations. Today, used Acadia models with this powertrain are readily available and offer a good value for families seeking a spacious and comfortable crossover SUV. The Acadia helped establish GMC as a viable competitor in the mid-size crossover segment, paving the way for future generations of the vehicle.
