[Updated] Fire Destroys Concept Vehicle at GM Design Facility in Pasadena

The General Motors design facility near Sierra Madre Villa Avenue and Rosemead Boulevard (Photo – W.K.)

A fire at a General Motors design facility in Pasadena on Wednesday evening prompted a large-scale hazardous materials response due to the presence of lithium-ion batteries.

By News Desk

The blaze was first reported around 5:45 pm at the GM design center near Sierra Madre Villa Avenue and Rosemead Boulevard, according to the Pasadena Fire Department. What began as a localized incident quickly escalated into a four-alarm fire, drawing hundreds of firefighters from surrounding agencies.

Fire officials said crews faced significant challenges inside the sprawling complex, where thick smoke and stored batteries complicated efforts to locate and contain the flames. Multiple prototype vehicles under development were destroyed in the blaze.

The cause of the fire remains under investigation. Authorities have not yet determined whether the lithium-ion batteries involved were part of the vehicles or stored elsewhere in the facility.

Hazardous materials teams were dispatched to ensure firefighter safety and manage potential chemical risks. Officials expect the cleanup and recovery process to take several days.

Nearby roads were closed for hours as emergency crews worked to bring the fire under control.

The affected site serves as a major design and engineering hub for General Motors, where teams develop vehicles for the company’s Cadillac, Buick, GMC, and Chevrolet brands.

No injuries had been reported as of late Wednesday night.

Update (Oct. 23) -12:23 pm: General Motors says a fire at its Pasadena Advanced Design Studio was isolated to a single concept vehicle and did not spread to other cars or the building.

“We’re grateful that all employees and first responders are safe and accounted for. The isolated fire was contained to a single design concept vehicle and did not spread to any other vehicles, design concepts, or the building itself. We thank the responding fire departments for their swift action in extinguishing the fire,” a GM spokesperson said Thursday. (Read more).

Earlier reports from fire officials described a large-scale response at the facility Wednesday evening after smoke was seen coming from the complex.

[This story has been updated to reflect General Motors’ clarification that the fire was limited to a single concept vehicle.]