# UNKNOWN UNKNOWN — POWER TRAIN
> NHTSA complaint `2061958` · 2025-02-02 · UNKNOWN MANUFACTURER
## Severity
- **Deaths:** 0
- **Injured:** 1
- **Fire:** No
- **Crash:** Yes
- **Police report:** No
- **Medical attention:** No
- **Vehicle towed:** No
## Vehicle
- **Make:** UNKNOWN
- **Model:** UNKNOWN
- **Year:** —
- **Manufacturer:** UNKNOWN MANUFACTURER
- **Component:** POWER TRAIN
## Narrative
1. If the brake light fuse blows due to a short it triggers abs light and locks vehicle in park results as I have experienced can result in truck being disabled anytime vehicle is put in park common cause is a short on trailer due to trailer lights and truck lights being on same fuse it affects the whole vehicle  2. Printed circuit board on guages can crack on battery check light circuit causing the alternator to fail resulting in the vehicle dying at any speed with complete loss of power brakes and power steering resulting in collision with multiple vehicles objects and possibly death 3. Ground wire connector on guages can become ineffective resulting in vehicle going into limp mode at any speed results when vehicle goes into limp mode at speeds over 45 mph limp mode will automatically force automatic transmission to immediately downshift from 3rd gear (30mph - 45mph) or 4th gear (45mph - 80mph)  to 2nd gear (15mph - 30mph) resulting in a multiple system failure with complete loss of overdrive and loss of control of the vehicle resulting in a crash or death Possible complete structural failure of transmission case and mounts resulting in transmission becoming unattached from the vehicle  3. rear drum auto adjustment cable may break resulting in complete brake failure and can cause brake shoes to cut brake drum in half from bolt pattern resulting in a free spinning drum that will destroy everything inside resulting in complete loss of brakes causing crash and potential death 
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*Source: [NHTSA ODI](https://www-odi.nhtsa.dot.gov/downloads/) · AI Analytics · CC0 1.0*