Verified government source

NHTSA complaint #11729435

This page summarizes an official U.S. National Highway Traffic Safety Administration owner complaint. Use the verification links below to confirm the record directly with NHTSA.

Vehicle

2019 MERCEDES-BENZ GLC 300

Manufacturer

Mercedes-Benz USA, LLC

Components

VISIBILITY

Dates

Incident: 04/05/2026
Filed: 04/06/2026

Owner complaint summary

The contact owns a 2019 Mercedes-Benz GLC300. The contact stated that while driving 65 MPH on the interstate, the sunroof suddenly shattered into pieces and flew off the vehicle. The vehicle was driven to a dealer but was not repaired. The manufacturer was notified of the failure. The failure mileage was 106,706.

This is an owner complaint filed with NHTSA (ODI #11729435). It is not automatically an official recall, investigation outcome, or manufacturer admission unless the complaint text itself describes one.

Official record ID (ODI): 11729435. This page is the human-readable source link used across afterwarranty. The raw JSON link proxies NHTSA's public API for machine verification; prefer this page when reading the complaint.