General Motors is using a new “batch build” manufacturing strategy at its Fairfax Assembly & Stamping plant in Kansas City for the 2027 Chevrolet Bolt, producing groups of 30 similarly equipped vehicles together to simplify operations, improve quality, and reduce production complexity.
According to GM, the strategy is part of its broader “Winning with Simplicity” initiative, which focuses on reducing manufacturing complexity so employees can work more efficiently, improve quality, and reduce costs.
At the Fairfax facility, batches of 30 nearly identical Bolt LT or RS vehicles, often sharing the same exterior color and configuration, move through the assembly process together rather than alternating constantly between different vehicle combinations. GM said the process creates a more predictable manufacturing workflow while helping suppliers and employees stay aligned throughout production.
“This is all about winning with simplicity,” said Dieu Nguyen, batch manager, Fairfax Body & Paint Shop. “It helps us with scheduling requirements and suppliers, and it ensures that our employees are working on the right things.”
GM executives said the system is already producing measurable quality improvements. One of the company’s key manufacturing metrics is “electrical first-time quality” (EFTQ), which measures whether vehicles pass critical electrical-system checks on the first attempt. According to GM, the Fairfax team has consistently achieved monthly EFTQ targets during the first three months following launch.
The batch-build process is also improving operations across several areas of the plant:
- Supply chain coordination: Suppliers can operate on a fixed seven-day delivery cadence, improving consistency for incoming parts and components.
- Factory floor efficiency: Delivering parts in groups of 30 reduces the need for specialized storage racks and equipment, freeing up manufacturing space.
- Paint shop optimization: Grouping vehicles by exterior color minimizes paint-system purging and cleaning cycles, reducing downtime and lowering costs.
Another key component of the strategy is GM’s “clone” process. Since the 2027 Bolt is available with multiple roof configurations and seven exterior colors, Fairfax maintains reserve vehicle bodies for every configuration. If a vehicle must be removed from the assembly line for a potential defect, a matching “clone” can immediately replace it so production remains uninterrupted.
GM said Fairfax is the first North American plant within the company to implement batch build manufacturing. The automaker plans to apply lessons from the Bolt program to additional vehicles in the future, including the Chevrolet Equinox and a future Buick compact SUV that will also be assembled at Fairfax.
“We’re proud to be the first GM plant in North America to adopt batch build,” said Michael Youngs, Fairfax plant director. “It’s paying off with quality and efficiency. The lessons we are learning here will carry over to the next products we build here, and we believe it will also carry on to other GM plants in the future.”
KEY QUOTES:
“This is all about winning with simplicity. It helps us with scheduling requirements and suppliers, and it ensures that our employees are working on the right things.”
Dieu Nguyen, Batch Manager, Fairfax Body & Paint Shop, General Motors
“What you’re really getting out of this is quality. The continuity of seeing the same vehicle 30-in-a-row has a direct correlation to quality.”
Tony Prettejohn, Global Supply Chain Manager, Fairfax Material & Production Control, General Motors
“We’re proud to be the first GM plant in North America to adopt batch build. It’s paying off with quality and efficiency. The lessons we are learning here will carry over to the next products we build here, and we believe it will also carry on to other GM plants in the future.”
Michael Youngs, Fairfax Plant Director, General Motors
