Stellantis plans to lay off nearly 1,000 workers starting January 5th, shifting to a single-shift operation to address high inventory levels by aligning production with sales. The company noted the layoff's impact on the Gladiator JT line and emphasized that the shift reduction is necessary to improve competitiveness. Affected employees will receive unemployment benefits and healthcare coverage, while the UAW informed members of the WARN notice and job reduction specifics.