DETROIT, March 30 (Reuters) - General Motors is idling a Detroit electric vehicle plant until April 13, extending downtime that began on March 16, the company said on Monday.

"Factory ZERO will temporarily adjust production to align EV production with market demand," a GM spokesperson said. The temporary layoff affects 1,300 workers.

The plant, which produces vehicles including the Chevrolet Silverado EV and Hummer EV, has had choppy production over the last year as GM confronts waning demand for battery-powered models. The automaker cut output at the plant by about 50% in January.

GM, which has reported $7.6 billion in writedowns on its EV programs, is one of several automakers that have pared back their EV plans following significant regulatory shifts under U.S. President Donald Trump.

Instead, the industry is leaning into production of gas-powered trucks and SUVs, Detroit's main profit machines. GM confirmed on Monday it plans to increase production of its heavy-duty trucks at a plant in Michigan starting in June.