President Donald Trump is set to sign an executive order on Tuesday to​ ease auto tariffs, the latest abrupt shift in a rapidly changing tariff policy that has left businesses scrambling to keep up.

A slower phase-in for tariffs on auto parts will give manufacturers time to ramp up manufacturing in the United States. Some warn they will still drive up car prices.

GM and Stellantis executives have expressed gratitude for the measures, which include rebates for vehicles finished domestically.