The All-New 2021 Sienna is Already Winning Awards

The All-New 2021 Sienna is Already Winning Awards

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  • Altair Engineering Recognizes Toyota Seat Design with Lightweighting Award

ANN ARBOR, Mich. (August 5, 2020) – Even though the 2021 Toyota Sienna has yet to go on sale, the innovative engineering work for the new minivan conducted at Toyota Motor North America’s Research & Development Center in Michigan is already garnering awards.

Altair Engineering has presented Toyota Motor North America with its prestigious Enlighten award. The award recognizes Toyota’s work, with the support of supplier partner BASF, in substantial lightweighting of Sienna’s folding third-row seats.

The lightweighting effort was lead by Toyota Senior Principal Engineer for Body Design, Todd Muck. Working with BASF, Todd and his team reduced the heavy, 15-piece steel seat frame to a new one-piece resin seatback. The industry-first seatback is lighter, easier to assemble, and less expensive to produce. While all of the improvements are important, it is the seat’s lower weight that provides the most direct benefit to the customer.

“Reducing the seatback’s mass (weight) provides the customer with several benefits,” Said Muck. He continued, “Less weight can improve fuel economy. Or, we can use that saved weight in other areas, such as adding new features like the built-in refrigerator.”

However, Muck says the most apparent benefit is the reduced effort it takes for customers to raise folded third-row seats to their upright position. “Our new design has made lifting the seats much easier,” he said. “With the previous design, it would take more than 24-kilograms (53 pounds) of force to raise the seat. The new design requires less than 9-kiograms (19 pounds) of force.”

The all-new Sienna was designed and engineered in Ann Arbor, Michigan, and is manufactured in Princeton, Indiana. It goes on sale later this year.

“Toyota Motor North America Research & Development in Southeast Michigan has engineering responsibilities for all of Toyota’s North American manufactured vehicles, including the All-New 2021 Toyota Sienna.”

"Lightweighting innovations by TMNA R&D Engineers has significantly reduced the effort required to lift the 3rd row seats of the 2021 Toyota Sienna. (Measurement displayed in kg.)"

“Computer illustration of the award-winning resin seatback panels developed by engineers at Toyota’s North American R&D center, with support from supplier partner BASF.”

“The All-New 2021 Toyota Sienna”

About Toyota

Toyota (NYSE:TM) has been a part of the cultural fabric in the U.S. and North America for more than 60 years, and is committed to advancing sustainable, next-generation mobility through our Toyota and Lexus brands. During that time, Toyota has created a tremendous value chain as our teams have contributed to world-class design, engineering, and assembly of more than 38 million cars and trucks in North America, where we have 14 manufacturing plants, 15 including our joint venture in Alabama (10 in the U.S.), and directly employ more than 47,000 people (over 36,000 in the U.S.). Our 1,800 North American dealerships (nearly 1,500 in the U.S.) sold 2.8 million cars and trucks (2.4 million in the U.S.) in 2019.

Through the Start Your Impossible campaign, Toyota highlights the way it partners with community, civic, academic and governmental organizations to address our society’s most pressing mobility challenges. We believe that when people are free to move, anything is possible. For more information about Toyota, visit

Brian Watkins
[email protected]

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