What 7 owners told NHTSA about the 2025 Mercedes-benz GLS 450 4matic

Accident report: Local ID [XXX] Agency: ISPLowell 13 Date [XXX] Time approx [XXX] Milepost [XXX] on [XXX] Auto: 2025 Mercedes GLS 450 fully loaded Single car accident See attached pictures for damage State Farm insurance - claim filed (claim # [XXX]) Claim filed with Mercedes Benz on 3/9/2026 to access info from event data recorders (claim #[XXX])a total loss Driver’s 2 front airbags deployed - chest and legs. Driver was in left lane with no traffic around - slight drizzle Car started to move a bit in between the lane markers as if the lane assist was engage and trying to keep the car in the lane Driver had both hand in the wheel and was paying attention - tried to stabilize the wheel when all of a sudden the wheel turned hard left (driver couldn’t correct wheel) and drove the car starting into the cement center median. The car seemed to jump a bit and finally came to rest in the median (not touching the median) facing in the original direction at a slight angle to the left. Driver reports that it also seems the wheels may have locked up. Driver was driving a safe soled at 65 in a 70 zone and was fully attentive. Driver suspects the lane-assist feature. Fortunately, the driver was not seriously hurt - just a couple of bruises from the seat restraint system and the airbag deployment. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11723124

The contact owns a 2025 Mercedes-Benz GLS450. The contact stated that while driving approximately 50 MPH, a loud popping noise had occurred, and suddenly the panoramic glass sunroof exploded, causing shards of glass to fall into the cabin of the vehicle. During the incident, shards of glass contacted the driver, front seat passenger, and middle row passenger located on the driver's side. The driver sustained lacerations to the left hand and neck, which would require medical treatment. The children were traumatized by the event. The cause of the failure was not determined. The manufacturer and local dealer were notified of the failure. The failure mileage was 10,000.

NHTSA ODI 11699107