Why General Motors is Investing US$275m in Tennessee

General Motors (GM) is set to make a US$275m investment into its Spring Hill manufacturing complex in Tennessee, across both vehicle and propulsion operations.

In 2026, GM is spending roughly US$9bn across its US manufacturing operations as well as US$7bn on research and development. 

The investment announcement comes not long after GM announced it was integrating various AI technologies across its production line, including automated systems in the paint shop in Spring Hill. 

The company is currently shifting its focus back to internal combustion engine (ICE) vehicles and away from electric vehicles (EVs), owing to reduced customer demand and a US$6bn writedown earlier this year. 

Spring Hill investment

As part of GM’s US$275m investment across the Spring Hill manufacturing complex, the company is investing more than US$150m to support a future Cadillac ICE product.

Once that product is added, Spring Hill will become a five-vehicle operation.

The company says it will invest US$125m in Spring Hill to support production of the 2.7L engine. 

This engine powers various Chevrolet and GMC trucks, including the Colorado, Canyon, Silverado and Sierra.

GM's investment will also be used to refurbish equipment at the manufacturing site, which is GM’s largest. 

How GM is integrating AI in manufacturing

In May, GM announced that at its manufacturing sites in Spring Hill and Flint, GM paint shops have added Finesse Paint Repair vision cameras to detect issues with paint quality as vehicles move down the line.

The company says that the vision systems can see imperfections at a microlevel, resulting in quicker, more confident decisions and a better paint finish for customers.

At GM’s Factory ZERO, its flagship EV plant, GM is piloting its proprietary technology, WeldBrAIn, that monitors quality on the production line. 

The company says this AI-powered system has expanded quality check capabilities from manual inspection of four parts per shift to checking every single weld, on every single body, in real time.

Spring Hill manufacturing

GM employs thousands of people at its site in Spring Hill to support production of vehicles like the Cadillac LYRIQ, LYRIQ-V, VISTIQ, XT5 and Chevrolet Blazer production beginning in 2027.

In 2020, GM announced a US$2bn investment in Spring Hill Assembly. Previously, the company has made significant investments to support EV production at Spring Hill. 

In 2021, GM and LG Energy Solution announced a US$2.3bn investment to build an EV battery plant in Spring Hill. 

The joint battery venture with LG called Ultium Cells received an additional investment in 2025. 

Shifting focus back to ICE Vehicles

The company still positions EVs as its long-term strategy, with GM’s CEO Mary Barra saying in January that she sees EVs as “the end game”.

However, it looks like it may be further down the line than initially planned. At the same automotive event in January, Reuters reported she said the company "had to make some fairly significant changes”.

The company’s changes were implemented after GM recorded a US$6bn charge earlier this year to close some EV related investments. 

Since then, the company has focussed on production models of ICE vehicles, including by running its plant in Flint, Michigan six days a week from June 2026. At the site GM makes heavy duty trucks such as the Chevrolet Silverado 2500.

In April, GM idled 1,300 workers at Factory Zero for nearly a month as production in its EVs decreased. 

Facing EV headwinds

GM faced headwinds against its EV plans, which include expired tax credits that have decreased uptake and competition on a global scale from Chinese rivals.

However, GM’s CEO Mary Barra still argues that US automakers can go head-to-head with China’s EV makers in the global market and win, according to a June 2026 report from NBC News. 

While the company has softened its position on EVs, it has a variety of new models it is releasing soon like the 2027 Chevy Equinox.