GM has not confirmed a lasting end to Silverado HD output as reports the 4500HD through 6500HD variants are slated for discontinuation as part of a contract non-renewal with International Trucks output is slated to end September 30, 2026. The move reportedly affects Springfield, Ohio lines and is framed by weak demand for diesel-powered commercial vehicles, while consumer Silverado pickups (1500/2500/3500) would continue unaffected. A portion of Express/Savana Cutaway family may also be impacted, GM has not provided replacements for the medium-duty lineup.