# 2020 GMC SIERRA 2500 — ELECTRICAL SYSTEM
> NHTSA complaint `2151373` · 2025-11-24 · General Motors, LLC
## Severity
- **Deaths:** 0
- **Injured:** 0
- **Fire:** Yes
- **Crash:** No
- **Police report:** No
- **Medical attention:** No
- **Vehicle towed:** No
## Vehicle
- **Make:** GMC
- **Model:** SIERRA 2500
- **Year:** 2020
- **Manufacturer:** General Motors, LLC
- **Component:** ELECTRICAL SYSTEM
## Narrative
The rear defroster massively overheated. It started heavily smoking and eventually exploded the rear windows. Only warning sign was the smoke which we noticed quickly because the windows were up. Had the windows been down we might not have noticed before a fire started. I'm taking it to a dealership now. This module also triggers on from a remote start. Extremely dangerous!!!
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*Source: [NHTSA ODI](https://www-odi.nhtsa.dot.gov/downloads/) · AI Analytics · CC0 1.0*