Three months into the job, Nissan Motor Co. Chief Executive Officer Makoto Uchida still isn't sure how much deeper cost cuts need to be, with the coronavirus outbreak adding another layer of uncertainty to the carmaker's already challenging business outlook.

The CEO has promised to unveil a turnaround plan in May, on top of a plan to cut more than 12,500 jobs amid decade-low profits and management turmoil caused by the 2018 arrest of Carlos Ghosn, the company's former chairman.

"All possibilities are on the table," Uchida, 53, said in an interview at the automaker's headquarters in Yokohama on Tuesday. He said that fixed costs, such as salaries and plants, which aren't affected by the amount of cars Nissan produces, could be on the table. "If our performance doesn't improve, then of course we are ready to take a closer look at fixed costs."