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Indiana Plant


Facilities Approx. 4.3 million square feet under roof (roughly 90 acres or 70 football fields). The plant is located on 1,160 acres.
Employment 5,100+
Investment: $4.6 billion
Products Highlander

What was once an open farm field has been transformed into a world-class manufacturing facility producing vehicles for local and global customers. Local government officials and Toyota executives broke ground for the Princeton, Indiana facility in September 1996. The first vehicle built at the new facility, a Toyota T-150 pickup truck, debuted in December 1998 during TMMI’s first truck line-off ceremony and later became known as the Toyota Tundra. Tundra production eventually was shifted to our sister plant in Texas, but TMMI pays homage to our roots in truck production with a coalescing Tundra suspended prominently above our Visitors Center exhibits.


From start to final inspection, it takes approximately 20 hours of elapsed time to assemble a single vehicle. As each vehicle makes its way through the production process, it will pass from Stamping to the Body Weld shop, then on to Paint before entering Assembly —where parts and sub-assemblies are precision-fitted. Along the way, each vehicle will also undergo numerous inspections by machine and human eye and touch.


The key to quality starts with the Toyota mindset of “customer first”. Team members build each vehicle as if it were their own. Team members are trained to the highest standards in the industry and must be certified in a specific process before they can touch a vehicle on the line. Team members are empowered and encouraged to pull the “andon” and stop the production line if they have any concern about parts, quality, fit or finish of the vehicle. At Toyota, this is called Jidoka, a Japanese term meaning “don’t pass on poor quality.” No defects should be passed on to the customer, and that includes a fellow team member down the line, in the next process or at the dealership.


TMMI's history is marked with expansion announcements time and again. While initial plant construction was under way, an expansion announcement was made in March 1998 for another vehicle that would share the same frame and assembly line as the T-150.

After the success of the truck launch, Toyota executives chose TMMI's manufacturing plants repeatedly for additional model production and expansions. TMMI’s original West Plant was joined by East Plant to produce the Sienna minivan in 2003. Highlander production later was added to West Plant. As sales and demand for SUVs continued to grow, TMMI announced in August 2014 a $100 million investment to expand Highlander production to East Plant to produce up to 30,000 more units of the popular midsize SUV and create 300 new jobs by 2016.

To meet continued strong demand for the mid-size SUV, TMMI announced in January 2017 the addition of another 400 jobs to produce an additional 40,000 Highlanders by Fall 2019. The additional $600 million investment is earmarked for retooling, new equipment and advanced technologies, bringing Toyota's total investment in the Princeton facility to $4.6 billion.


With regular production shifts and daily overtime, team members have come to rely on the convenience of on-site services. Amenities offered to team members include two cafeterias including 24-hour self-service registers, a children’s center providing childcare services for both day and night production shifts, pharmacy, banking center and medical clinic. Fitness facilities include two outdoor walking tracks, three gyms, a nature trail, disc golf course and two softball fields near a covered pavilion with an outdoor grill and picnic tables.