NHTSA Complaint #11702156 — 2025 CHEVROLET EQUINOX

On November 30, 2025, while driving my 2025 Chevy Equinox EV LS, the vehicle displayed a “Service High Voltage System” warning message on the center screen indicating an issue with the vehicle’s high‑voltage electrical system and that some driving and/or charging functionality may not be available. The high‑voltage battery and related components are still in the vehicle and available for inspection upon request. This fault could cause sudden loss or limitation of driving or charging capability, which may increase the risk of being stranded in traffic or in unsafe locations. Beginning in the first week of November 2025, the myChevrolet app has continuously shown a “Lithium‑Ion Battery – Schedule Service Now” alert under Diagnostics, even though no corresponding warning appeared in the vehicle until November 30. I presented the in‑app lithium‑ion battery warning to the Chevrolet dealer earlier in November; they declined to act on it, stated they do not rely on the app, and asked me to reschedule and return later, so the issue has not yet been reproduced or confirmed by a dealer or independent shop. The vehicle has not been inspected by the manufacturer, police, insurance, or others specifically for this high‑voltage/battery issue. The only prior symptoms were the persistent lithium‑ion battery service notification in the myChevrolet app since early November and, as of November 30, the in‑vehicle “Service High Voltage System” warning message.