Chevrolet defended itself against an attack from Donald Trump on Tuesday morning after the president-elect threatened to hit the company with a “big border tax” because it builds a small number of its cars in Mexico.

“General Motors is sending Mexican made model of Chevy Cruze to U.S. car dealers-tax free across border,” Trump wrote on Twitter early January 3. “Make in U.S.A. or pay big border tax!”

GM almost immediately sent out a press release explaining “all Chevrolet Cruze sedans sold in the U.S. are built in GM’s assembly plant in Lordstown, Ohio,” and that only a very “small number” of Cruze hatchbacks – about 4,500, or 2.4 percent of total production, it later clarified – made in Mexico are sold Stateside.

Trump famously beat up on U.S. automaker Ford during his election campaign, and threatened companies that imported cars from abroad with a 35-percent tax. GM CEO Mary Barra is a member of Trump’s strategic and policy forum, the group of CEOs he selected to help advise him on economic policy.

(Twitter and Chevrolet)