The Toyota Sienna is a series of minivans marketed by Toyota since 1996. The third generation, launched in 2010, received a significant facelift in 2018, updating its styling, technology, and safety features. This iteration of the Sienna, specifically the 3.5 V6 AWD Automatic model produced from 2018 to 2020, represents a key offering in the North American minivan segment, known for its practicality, reliability, and available all-wheel drive. The Sienna competes directly with models like the Honda Odyssey and Chrysler Pacifica, offering a compelling blend of space, comfort, and features for families.
Toyota Sienna III (2018-2020) 3.5 V6 AWD: An Overview
The 2018 facelift of the third-generation Toyota Sienna brought a more aggressive front fascia, updated interior materials, and enhanced safety technology. The 3.5 V6 AWD variant, in particular, caters to customers in regions with inclement weather, providing enhanced traction and stability. This model continues Toyota’s tradition of building durable and family-focused vehicles, emphasizing functionality and long-term value. The Sienna’s enduring popularity stems from its reputation for reliability and its ability to comfortably accommodate up to eight passengers, making it a staple for families and those requiring substantial cargo space.
Engine & Performance
The heart of the 2018-2020 Toyota Sienna 3.5 V6 AWD is the 2GR-FKS 3.5-liter V6 gasoline engine. This naturally aspirated engine produces 296 horsepower at 6,600 rpm and 357 Nm (263.31 lb.-ft.) of torque at 4,700 rpm. The engine utilizes direct injection and a dual overhead camshaft (DOHC) valvetrain with Variable Valve Timing-intelligence (VVT-i) to optimize performance and efficiency. Power is delivered to all four wheels via an eight-speed automatic transmission (ECT-i), providing smooth and responsive shifting. The Sienna’s weight-to-power ratio is 7.1 kg/Hp (140.2 Hp/tonne), and its weight-to-torque ratio is 5.9 kg/Nm (169.1 Nm/tonne), contributing to its respectable acceleration and towing capability. Fuel economy is rated at approximately 13.1 l/100 km (18 US mpg) in urban driving and 9.8 l/100 km (24 US mpg) in extra-urban conditions.
Design & Features
The Toyota Sienna III (facelift 2018) maintains the classic minivan silhouette, characterized by its sliding rear doors and spacious interior. The 2018 refresh brought a bolder front grille, redesigned headlights, and updated taillights. The vehicle is a five-door minivan, typically configured to seat seven or eight passengers. Inside, the Sienna prioritizes practicality and comfort. Key features include a spacious cabin with ample legroom in all three rows, flexible seating configurations, and a generous cargo area. With the rear seats folded down, the Sienna offers up to 4,248 liters (150.02 cu. ft.) of cargo space, making it ideal for hauling large items. Safety features are a prominent aspect of the Sienna, with standard equipment including Anti-lock Braking System (ABS) and a comprehensive airbag system. The Sienna’s focus is on providing a comfortable and versatile transportation solution for families, prioritizing space, convenience, and safety.
Technical Specifications
| Brand | Toyota |
| Model | Sienna |
| Generation | Sienna III (facelift 2018) |
| Type (Engine) | 3.5 V6 (296 Hp) AWD Automatic |
| Start of production | 2018 |
| End of production | 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Minivan |
| Seats | 7-8 |
| Doors | 5 |
| Fuel consumption (urban) | 13.1 l/100 km (18 US mpg) |
| Fuel consumption (extra urban) | 9.8 l/100 km (24 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 7.1 kg/Hp |
| Weight-to-torque ratio | 5.9 kg/Nm |
| Power | 296 Hp @ 6600 rpm |
| Torque | 357 Nm @ 4700 rpm (263.31 lb.-ft. @ 4700 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | 2GR-FKS |
| Engine displacement | 3500 cm3 (213.58 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC, VVT-i |
| Engine oil capacity | 5.5 l (5.81 US qt | 4.84 UK qt) |
| Coolant capacity | 11.5 l (12.15 US qt | 10.12 UK qt) |
| Kerb Weight | 2111-2155 kg (4653.96 – 4750.96 lbs.) |
| Trunk (boot) space – minimum | 1107 l (39.09 cu. ft.) |
| Trunk (boot) space – maximum | 4248 l (150.02 cu. ft.) |
| Fuel tank capacity | 75 l (19.81 US gal | 16.5 UK gal) |
| Permitted trailer load with brakes (12%) | 1588 kg (3500.94 lbs.) |
| Length | 5095 mm (200.59 in.) |
| Width | 1984 mm (78.11 in.) |
| Height | 1811 mm (71.3 in.) |
| Wheelbase | 3030 mm (119.29 in.) |
| Front track | 1720 mm (67.72 in.) |
| Rear (Back) track | 1720 mm (67.72 in.) |
| Ride height (ground clearance) | 168 mm (6.61 in.) |
| Drag coefficient (Cd) | 0.31 |
| Drivetrain Architecture | All wheel drive (4×4). ICE drives all four wheels. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission ECT-i |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent coil spring |
| 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 |
| Wheel rims size | 17; 18 |
The Toyota Sienna III (2018-2020) 3.5 V6 AWD remains a popular choice for families seeking a reliable, spacious, and well-equipped minivan. Its combination of a powerful V6 engine, all-wheel drive capability, and a focus on safety and comfort ensures its continued relevance in the competitive minivan market.
