Toyota said Monday it will shift most production of its midsize Tacoma pickup truck from Mexico to the United States as part of a $3.6 billion investment in its San Antonio, Texas, plant. The transition from Toyota’s Tijuana, Mexico, facility will take roughly four years, the Japanese auto giant said. The announcement comes just days after Washington declined to renew a North American trade pact with Mexico, as well as Canada, fueling uncertainty for businesses. Toyota said in November it planned to invest as much as $10 billion in the United States over the next five years. The world’s largest automaker by vehicle sales, Toyota plans to build a second assembly line at its San Antonio factory, creating more than 2,000 jobs and increasing annual production capacity at the plant by 150,000 units, the company said in a statement. Toyota, in $3.6 billion move, shifting Tacoma production to Texas from Mexico