GM has not publicly confirmed a permanent end to Silverado HD production according to reports the 4500HD through 6500HD variants are slated for discontinuation as part of a contract non-renewal with International Trucks production is set to end by September 30, 2026. The move reportedly affects Springfield, Ohio lines and is framed by weak demand for diesel-powered commercial vehicles, but consumer Silverado pickups (1500/2500/3500) remain unaffected. Some reports indicate broader Express/Savana Cutaway variants may be impacted, GM has not detailed replacements for the medium-duty lineup.