"The longer the chip crisis lasts, the harder it will be to sustain the auto industry's current business model," Stellantis boss Carlos Tavares told a FT web conference.
"The situation on the global semiconductor market remains tense and, according to all estimates, will continue to be so in the coming months, resulting in supply bottlenecks," a spokeswoman for Ford said in a statement.
The carmaker said it planned to make up for lost production "as best we can" and would prioritise vehicles already ordered by customers.
Automakers around the world have had to adjust assembly lines due to the shortages, caused by manufacturing delays that some semiconductor makers blame on a faster-than expected recovery from the coronavirus pandemic.
Volkswagen AG, China's biggest foreign automaker which hopes to sell over four million vehicles in the country, said the situation had not improved in the second quarter.
It cited Alice Cheng, an executive at the science park administration, as saying that most companies there have backup systems in the event of power failure.
The operations of TSMC, whose clients include Apple Inc and Qualcomm Inc, are being closely watched by its customers and investors due to a global shortage of chips for everything from cars to washing machines.
Ford said it will idle its Ohio assembly plant, while its Kentucky Truck Plant in Louisville will only work two of three shifts. Both plants will return to full production the week of March 29.
The US automaker said the latest action is part of a prior forecast it made that the shortage could hit 2021 profits by $1 bln to $2.5 bln.
"The company and Shenzhen government will jointly drive other third-party investors to complete the remaining capital contribution," it said.
SMIC's co-CEO Zhao Haijun said last month the company could not meet customer demands for certain mature technologies and its plants have been running "fully loaded" for several quarters.
Semiconductor supply remains an issue that is facing the entire industry. GM's plan is to leverage every available semiconductor to build and ship our most popular and in-demand products.
GM vehicles affected by the idled plants include the Chevrolet Malibu sedan, Cadillac XT4 SUV, Chevy Equinox, and GMC Terrain SUVs.