AVOIR rates the 2019 GMC Sierra 3500HD's reliability 67/100 — good — from NHTSA recall counts, complaint density, and multi-year defect trends. Its overall AVOIR ownership score is 68/100 (Average).
AVOIR scores the 2019 GMC Sierra 3500HD's longevity 67/100 (good), estimated from high-mileage survival data and resale-panel evidence of how far these vehicles actually run.
AVOIR scores the 2019 GMC Sierra 3500HD on maintenance 46/100 and depreciation 91/100 — higher is better (lower real cost) — plus fuel, insurance and resale in the full breakdown above.
AVOIR scores every vehicle across 7 ownership factors using EPA fuel-economy data, NHTSA safety & complaints, IIHS ratings, and a proprietary used-market resale panel.