General Motors says it plans to cease production of some models at three vehicle assembly plants in the USA and Canada in 2019. GM has several plants running well below that, and Barra said North American operations overall were operating at 70 percent capacity.
The Hamtramck and Lordstown assembly plants are now operating on one shift.
In the fall, the Detroit automaker offered buyouts to 18,000 white collar workers, but it has yet to say how many accepted, or if its's close to meeting the staff reduction goals it set to better withstand leaner times.
GM's North American salaried workforce, including engineers and executives, will shrink by 15 percent, or about 8,000 jobs. Some UAW workers could land jobs at other GM factories, but many will face uncertain futures unless GM reverses course.
The reduction includes about 8,000 white-collar employees, or 15 percent of GM's North American white-collar workforce.
GM shares rose as much as 7.8 percent following the announcement, and were almost 6 percent higher at $37.97 in midafternoon trading.
But he has made big promises to auto workers in both states.
The company is battling rival automakers to be first in line to mass produce the cars of the future.
GM plans to announce a broader restructuring of its efforts as it shifts more of its focus toward electrified and autonomous vehicles, the source said.
"We're taking these actions while the economy is strong", Barra said. "This industry is changing very rapidly". Although, if GM is serious about leading in autonomous cars, it might start by offering its best semi-autonomous technology-Cadillac's outstanding SuperCruise-on every last auto and truck in the GM lineup, instead of letting it languish as a pricey option on the now-DOA Caddy CT6.
Those cuts are in addition to $6.5 billion that the company has announced by the end of this year.
GM also said that the company will jettison the Buick LaCrosse, Chevrolet Impala and Cadillac CT6 sedans next year.
As recently as 2012, passenger cars made up more than 50 percent of all US new vehicle sales. The automaker in June ended the second shift at its factory in Lordstown, Ohio, cutting 1,500 workers.
General Motors Co.'s (GM's) plan to cancel production at US factories and cut thousands of jobs drew a swift rebuke in the industrial heartland where US President Donald Trump posted surprising electoral wins premised on his pledge to restore manufacturing. Oshawa, just east of Toronto, has built GM cars for a century.
The layoffs will affect workers at a propulsion plant just outside Baltimore.
Still, political fallout was strong and swift in both the US and Canada. The United Auto Workers union, which represents employees at GM's USA factories, said in an emailed statement that it will challenge GM's decision through legal, contractual, and collective bargaining means. Still he added he was holding onto hope GM would use the massive facility to build a new product. I have spoken to UAW President Gary Jones and the city's economic development team.
Canadian Prime Minister Justin Trudeau said he spoke to Barra on Sunday to express his "deep disappointment" with the closure.
"So far, President Trump has been asleep at the switch and owes this community an explanation", U.S. Representative Tim Ryan, a Democrat whose district includes Lordstown, wrote on Twitter.
"They say the Chevy Cruze is not selling well", he said.
"Get a vehicle that is selling well and put it back in", Mr Trump said.
Barra said tariffs on imported aluminum and steel have hit the company, but she stopped short of saying they had anything to do with the restructuring. Ford said the same.
GM opened the Lordstown plant in the late 1960s. But unless GM can replace the Cruze with another model, this really looks like the end. Republican Senator Rob Portman told GM chief executive Mary Barra on Monday that the company should bring a new product to the plant and he also urged GM "to at least reallocate some of the production and employees to the Toledo GM plant". Those voters ended up playing a crucial role in his election, and Trump's reelection fortunes may hinge on them again in 2020.
"I said, those jobs have left Ohio". If the Lordstown jobs are coming back, it's not happening soon. "Don't sell your house". "And in return, GM has turned its back on us when we need them the most". But where looming job cuts leave some hearts cold, the prospect of high (er) profits and share prices is bound to warm others.