GM has not confirmed a lasting end to Silverado HD output as reports the 4500HD/5500HD/6500HD models may be discontinued in a contract non-renewal with International Trucks production is expected to end by September 30, 2026. The move reportedly affects Springfield, Ohio lines driven by soft demand for diesel-powered commercial vehicles, while consumer Silverado pickups (1500/2500/3500) would continue unaffected. Some reports indicate broader Express/Savana Cutaway variants may be impacted, no replacements for the medium-duty lineup have been detailed by GM.