2021 Toyota Sienna IV Dimensions, Size & Specs

The curb weight of the 2021 Toyota Sienna IV is 2091 kg (4609 lbs). This weight is typical for a minivan of its size and reflects the robust build quality and safety features integrated into the vehicle. While the weight impacts fuel efficiency slightly, the Sienna's hybrid powertrain compensates with better fuel economy compared to non-hybrid competitors, making it an efficient family hauler.

The 2021 Toyota Sienna IV offers 949 liters (33.5 cubic feet) of luggage capacity with all seats in place, providing ample room for groceries, sports gear, or luggage for family trips. When the rear seats are folded down, this expands significantly to 2860 liters (101 cubic feet), allowing for large cargo items such as furniture or equipment, showcasing the vehicle’s versatility.

The Toyota Sienna IV has a ground clearance of 160 mm (6.3 inches). This moderate ride height is typical for minivans, providing a comfortable ride and easy ingress and egress. While it’s not designed for off-road use, the clearance is sufficient for handling urban driving, speed bumps, and moderately rough roads with ease.

The Toyota Sienna IV comes with various rim size options including 7J x 17, 7.5J x 18, and 7.5J x 20. Corresponding tire sizes offered are 235/65 R17, 235/60 R18, 235/50 R20, and 235/60 R18. These options allow for customization based on preferences for ride comfort, handling, and aesthetics.

The Sienna IV measures 5169 mm (203.5 inches) in length, 1994 mm (78.5 inches) in width, and 1740 mm (68.5 inches) in height. Most standard residential garages are about 6 meters (20 feet) deep and 2.4 to 2.7 meters (8 to 9 feet) wide, so while the Sienna IV fits lengthwise, its width is just under 2 meters, which is a tight fit but generally still manageable for a standard garage. Adequate care should be taken when maneuvering to avoid scraping garage walls.

Compared to the third-generation Sienna (produced from 2010 to 2020), the 2021 fourth-generation model is slightly longer and wider, with the length increasing to 5169 mm from approximately 5045 mm (198.6 inches), and the width growing to 1994 mm from around 1980 mm (77.9 inches). The height has also been increased marginally. These dimensional enhancements translate to more interior space, improved comfort, and better cargo capacity, reflecting Toyota's focus on refinement and versatility in the new generation.

Dimensionally, the Toyota Sienna IV is competitive within the minivan segment. It is longer than the Honda Odyssey, which measures around 5177 mm (203.9 inches), but slightly narrower compared to the Chrysler Pacifica, which is approximately 2031 mm (80 inches) wide. The Sienna’s height at 1740 mm is in line with its competitors. Additionally, its substantial cargo capacity, especially with seats folded (up to 2860 liters), makes it a versatile choice. Its hybrid powertrain also sets it apart from many competitors, offering superior fuel economy.

The 2021 Toyota Sienna IV is designed primarily as a family minivan and can comfortably seat up to eight passengers in its standard configuration, with options for seven-passenger seating depending on trim and seating arrangement. The spacious interior is enhanced by its generous length and width, allowing ample legroom and headroom even in the third row. Its flexible sliding doors and configurable seats make access and cargo management straightforward for families or group travel.

The 2021 Toyota Sienna IV comes well-equipped with advanced technology and safety features. All trims benefit from Toyota Safety Sense 2.0, which includes adaptive cruise control, lane departure alert with steering assist, automatic emergency braking, and pedestrian detection. Inside, the vehicle features an 8-inch touchscreen infotainment system compatible with Apple CarPlay, Android Auto, and Amazon Alexa. Higher trims offer premium sound systems, rear-seat entertainment options, and advanced climate control, ensuring comfort and connectivity for all passengers.