General Motors' 78-year-old transmission plant in Warren, Michigan is halting production this week.

General Motors' 78-year-old transmission plant in Warren, Michigan is halting production this week.

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GM is halting production at a 78-year-old Detroit-area plant this week

General Motors' 78-year-old transmission plant in Warren, Michigan is halting production this week. The Detroit-area plant is one of five in North America that GM last year announced would suspend operations as part of the company's business transformation. GM plans to build fewer sedans as customers demand more trucks and SUVs. It also wants to reshape is business to eventually build more electric cars, while saving $6 billion annually starting at the end of 2019.