# 2025 MERCEDES-BENZ GLC 300 4MATIC — LANE DEPARTURE: BLIND SPOT DETECTION
> NHTSA complaint `2185392` · 2026-03-11 · Mercedes-Benz USA, LLC
## Severity
- **Deaths:** 0
- **Injured:** 1
- **Fire:** No
- **Crash:** No
- **Police report:** No
- **Medical attention:** Yes
- **Vehicle towed:** No
## Vehicle
- **Make:** MERCEDES-BENZ
- **Model:** GLC 300 4MATIC
- **Year:** 2025
- **Manufacturer:** Mercedes-Benz USA, LLC
- **Component:** LANE DEPARTURE: BLIND SPOT DETECTION
- **Speed:** 1 mph
## Narrative
To the Office of Defects Investigation National Highway Traffic Safety Administration  I am submitting this complaint to formally report a serious and recurring safety defect involving the automatic braking and collision detection systems in our Mercedes-Benz GLC.  License Plate: 9RHN710 Dealer Servicing Vehicle: Mercedes-Benz of Stevens Creek (AutoNation), San Jose, California  The vehicle has repeatedly experienced unexpected and unprovoked braking events, including situations where the automatic braking system engages despite there being no vehicles, pedestrians, or visible obstructions present. The issues observed include: • Sudden automatic braking activation without obstruction • Unexpected vehicle deceleration during normal driving conditions • Repeated dashboard alerts indicating “Speed Severely Restricted” • Repeated Attention Assist / “Coffee Break” warnings during normal local driving • Sudden brake engagement when parking, accompanied by a loud mechanical noise These events create a dangerous driving condition, as unexpected braking could lead to a rear-end collision from vehicles traveling behind the driver. During one incident, the abrupt braking caused a severe jolt to the driver, resulting in whiplash symptoms that required medical evaluation and MRI imaging, which identified cervical strain.  The vehicle has been brought to the authorized dealership multiple times for inspection and repair attempts. However: • The dealership has not been a
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*Source: [NHTSA ODI](https://www-odi.nhtsa.dot.gov/downloads/) · AI Analytics · CC0 1.0*