General Motors is adopting a new manufacturing strategy at its Fairfax Assembly & Stamping plant in Kansas City, producing the upcoming 2027 Chevrolet Bolt in groups of 30 vehicles at a time to improve quality, simplify operations, and reduce production complexity.
The process, known as “batch build,” forms part of GM’s broader “Winning with Simplicity” initiative aimed at streamlining vehicle production while maintaining high manufacturing standards.
Instead of assembling a constantly changing mix of vehicles, Fairfax now produces batches of 30 similarly configured Chevrolet Bolt models in the same color and trim. According to GM, the strategy allows workers and suppliers to operate more efficiently, minimizes variation on the production line, and helps ensure vehicles are built correctly the first time.
“This is all about winning with simplicity,” said Dieu Nguyen, adding that the system improves scheduling and supplier coordination while helping employees focus on production accuracy.
GM said the consistency created by batch production is already improving quality metrics at the plant. One key measurement, known as Electrical First-Time Quality (EFTQ), tracks the number of vehicles that successfully pass critical electrical-system inspections on the first attempt. The Fairfax facility has consistently met monthly EFTQ targets since the Bolt’s production launch three months ago.
The batch-build approach is also helping optimize supply chain logistics and manufacturing operations. Suppliers now deliver components on a fixed seven-day schedule, reducing uncertainty and improving efficiency. Grouping vehicles by paint color also lowers the number of paint system cleanings required, saving time and operational costs.
To maintain production flow, the plant uses a “clone” system. Since the 2027 Bolt is available with multiple roof configurations and seven exterior colors, Fairfax keeps backup vehicle bodies ready. If a vehicle is removed from the line due to a quality concern, a matching clone immediately replaces it, allowing production to continue uninterrupted.
Tony Prettejohn said the continuity of seeing “the same vehicle 30-in-a-row has a direct correlation to quality.”
GM plans to apply lessons learned from the Bolt’s batch-build system to future vehicle programs. The Fairfax plant is expected to begin production of the Chevrolet Equinox next year, followed by a new Buick compact SUV.
Michael Youngs said Fairfax is proud to be the first GM facility in North America to adopt batch build, adding that the strategy could eventually expand to other GM plants in the future.
