GM to restart Spring Hill production next week, cancel Chevy Blazer downtime GM to restart Spring Hill production next week, cancel Chevy Blazer downtime April 13, 2021 dzadmin Comments 0 Comment Last week, GM said it would pause or limit production at six North America plants throughout April because of the microchip shortage, including Spring Hill Assembly in Tennessee and Ramos Arizpe Assembly, which builds the Blazer.