GM has not publicly confirmed a permanent end to Silverado HD production according to reports the 4500HD/5500HD/6500HD models may be discontinued due to a non-renewed contract with International Trucks output is slated to end by September 30, 2026. Reports say Springfield, Ohio assembly lines are affected and is framed by weak demand for diesel-powered commercial vehicles, with Silverado pickups continuing unchanged. Some reports indicate broader Express/Savana Cutaway variants may be impacted, GM has not detailed replacements for the medium-duty lineup.