The Jeep Grand Cherokee IV (WK2) 3.6 V6 4×4 Automatic, produced from 2010 to 2013, represents a significant evolution in Jeep’s flagship SUV. Positioned as a mainstream offering within the WK2 generation, it served as the volume seller, bridging the gap between the base Laredo models and the higher-performance SRT and diesel-powered trims. This variant was primarily aimed at the North American market, where Jeep sought to offer a blend of capability, comfort, and fuel efficiency in a competitive SUV segment. The WK2 platform, shared with the Dodge Durango, marked a substantial improvement in on-road refinement and interior quality compared to its predecessor.
Technical Specifications
| Brand | Jeep |
| Model | Grand Cherokee |
| Generation | Grand Cherokee IV (WK2) |
| Type (Engine) | 3.6 V6 (286 Hp) 4×4 Automatic |
| Start of production | 2010 |
| End of production | 2013 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 16 l/100 km (14.7 US mpg, 17.7 UK mpg, 6.3 km/l) |
| Fuel consumption (extra urban) | 8.8 l/100 km (26.7 US mpg, 32.1 UK mpg, 11.4 km/l) |
| Fuel consumption (combined) | 11.4 l/100 km (20.6 US mpg, 24.8 UK mpg, 8.8 km/l) |
| CO2 emissions | 265 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9.1 sec |
| Acceleration 0 – 62 mph | 9.1 sec |
| Acceleration 0 – 60 mph | 8.6 sec |
| Maximum speed | 206 km/h (128 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 7.7 kg/Hp, 130.5 Hp/tonne |
| Weight-to-torque ratio | 6.3 kg/Nm, 158.4 Nm/tonne |
| Power | 286 Hp @ 6350 rpm |
| Power per litre | 79.4 Hp/l |
| Torque | 347 Nm @ 4300 rpm (255.93 lb.-ft. @ 4300 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | ERB |
| Engine displacement | 3604 cm3 (219.93 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 96 mm (3.78 in.) |
| Piston Stroke | 83 mm (3.27 in.) |
| Compression ratio | 10.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 5.6 l (5.92 US qt | 4.93 UK qt) |
| Coolant | 9.9 l (10.46 US qt | 8.71 UK qt) |
| Kerb Weight | 2191 kg (4830.33 lbs.) |
| Max. weight | 2949 kg (6501.43 lbs.) |
| Max load | 758 kg (1671.1 lbs.) |
| Trunk (boot) space – minimum | 782 l (27.62 cu. ft.) |
| Trunk (boot) space – maximum | 1554 l (54.88 cu. ft.) |
| Fuel tank capacity | 93 l (24.57 US gal | 20.46 UK gal) |
| Permitted trailer load with brakes (12%) | 2268 kg (5000.08 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Length | 4822 mm (189.84 in.) |
| Width | 1943 mm (76.5 in.) |
| Width including mirrors | 2154 mm (84.8 in.) |
| Height | 1781 mm (70.12 in.) |
| Wheelbase | 2915 mm (114.76 in.) |
| Front track | 1628 mm (64.09 in.) |
| Rear (Back) track | 1633 mm (64.29 in.) |
| Ride height (ground clearance) | 217 mm (8.54 in.) |
| Drag coefficient (Cd) | 0.37 |
| Minimum turning circle (turning diameter) | 11.6 m (38.06 ft.) |
| Approach angle | 30.7° |
| Departure angle | 26° |
| Ramp-over (brakeover) angle | 18.9° |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 5 gears, automatic transmission |
| Front suspension | Double wishbone |
| 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 |
| Tires size | 265/60 R18 |
| Wheel rims size | 18 |
Powertrain & Engine Architecture
The heart of this Grand Cherokee variant is the 3.6-liter Pentastar V6 engine, designated as the ERB code. This engine represents a clean-sheet design for Chrysler, replacing the older 3.7L V6. The Pentastar features a 60-degree V-angle, a lightweight aluminum block, and dual overhead camshafts (DOHC) with four valves per cylinder. Fuel delivery is managed by a multi-port fuel injection system, providing precise fuel metering for optimal combustion. The engine’s 10.2:1 compression ratio contributes to its efficiency and power output. Paired with this engine is a five-speed automatic transmission (545RFE), known for its smooth shifting and durability. This transmission was a workhorse for Chrysler during this period, offering a balance between performance and fuel economy. The 4×4 system utilizes a two-speed transfer case, providing selectable four-wheel drive modes for enhanced traction in various conditions.
Driving Characteristics
The 3.6L V6 with the five-speed automatic delivers adequate performance for everyday driving. Acceleration from 0-60 mph takes approximately 8.6 seconds, which is respectable for a full-size SUV. However, it’s noticeably slower than the available 5.7L Hemi V8 or the EcoDiesel options. The automatic transmission is tuned for comfort and efficiency, with gear changes being smooth and largely unnoticeable. The gear ratios are optimized for cruising, but downshifts can sometimes feel hesitant when quick acceleration is needed. The 4×4 system provides confident handling in inclement weather and on moderately challenging terrain. While capable off-road, this variant is primarily geared towards on-road comfort and usability.
Equipment & Trim Levels
The 3.6L V6 Automatic Grand Cherokee typically came standard with features such as air conditioning, power windows and locks, a basic audio system, and cloth upholstery. Higher trim levels, like the Limited, added features like leather seats, heated front seats, a premium audio system, and a power liftgate. Optional extras included a navigation system, rear-seat entertainment system, and various driver-assistance features. The interior design was a significant step up from previous Grand Cherokee generations, with improved materials and a more modern layout.
Chassis & Braking
The WK2 Grand Cherokee utilizes a robust chassis with a fully independent suspension system. The front suspension employs a double wishbone design, while the rear features an independent multi-link setup. This configuration provides a comfortable ride and good handling characteristics. Braking duties are handled by ventilated discs on all four wheels, providing ample stopping power. An Anti-lock Braking System (ABS) is standard, enhancing safety and control during emergency braking situations. Stabilizer bars are fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The 3.6L V6 Grand Cherokee was generally well-received by critics as a practical and comfortable SUV. It offered a good balance of features and fuel economy, making it an attractive option for families and individuals seeking a versatile vehicle. Compared to the Hemi V8, the V6 offered better fuel economy but lacked the same level of performance. The EcoDiesel, introduced later in the WK2 lifecycle, provided even better fuel economy but came at a higher price point. Reliability was generally good, although some owners reported minor issues with the transmission and electrical systems.
Legacy
The 3.6L Pentastar V6 has proven to be a durable and reliable engine, and the WK2 Grand Cherokee remains a popular choice in the used car market. These models offer a good value proposition, providing a comfortable and capable SUV at a relatively affordable price. While not as sought-after as the higher-performance trims, the 3.6L V6 Automatic Grand Cherokee represents a solid and dependable option for those seeking a well-rounded SUV.
