AVOIR rates the 2026 GMC Sierra EV 14-mod battery, 11kW 15-mode charger's reliability 80/100 — excellent — from NHTSA recall counts, complaint density, and multi-year defect trends. Its overall AVOIR ownership score is 81/100 (Excellent).
AVOIR scores the 2026 GMC Sierra EV 14-mod battery, 11kW 15-mode charger's longevity 78/100 (good), estimated from high-mileage survival data and resale-panel evidence of how far these vehicles actually run.
AVOIR scores the 2026 GMC Sierra EV 14-mod battery, 11kW 15-mode charger on maintenance 88/100 and depreciation 74/100 — 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.