Ford, GM and Fiat Chrysler are going dark amid the pandemic.
The owners paid $800 million for the skyscraper in 2008.
The EPA accused Fiat Chrysler Thursday of using software to cheat diesel emissions.
Fiat Chrysler recalled more than 1.1 million cars in April because vehicles may roll away after drivers exit.
Uber has been shopping around for driverless cars, according to an unnamed source.
That deal included pay raises, the potential for increased profit sharing and a $3,000 signing bonus.
UAW officials could direct members to stop work at any time if talks hit an impasse.
Millions of vehicles from the automaker are to be recalled.
Fiat Chrysler has decided to recall about 1.4 million cars and trucks in the U.S. just days after two hackers detailed how they were able to take control of a Jeep Cherokee SUV over the Internet.