Japanese auto giant Honda missed fourth-quarter earnings estimates as operating profit plunged 76%, with the company bracing for the full impact of U.S. tariffs. Honda's fourth quarter ends March 31.

Honda said on Monday that it would shift production of one of its popular vehicles from Ontario to a U.S. factory and postpone an $11 billion plan to make electric vehicles and batteries in Canada.

Japanese automakers Honda (HMC) and Nissan (NSANY) both announced dismal earnings on Tuesday — and the worst may still be yet to come.