Counts are not failure probabilities and are not adjusted for sales, age, mileage exposure or reporting. One report may name several categories. Comparison method and limitations.
The panoramic sunroof glass on my 2024 Mercedes-Benz GLB suddenly shattered while I was driving on Interstate 20. The failure occurred without any observed impact from another vehicle, object, or roadway debris. The damaged sunroof and vehicle are available for inspection upon request.The failure occurred unexpectedly while trav…
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The panoramic sunroof glass on my 2024 Mercedes-Benz GLB suddenly shattered while I was driving on Interstate 20. The failure occurred without any observed impact from another vehicle, object, or roadway debris. The damaged sunroof and vehicle are available for inspection upon request.The failure occurred unexpectedly while traveling at highway speed and was accompanied by a loud explosion-like sound that resembled a gunshot. The sudden noise startled me and could have caused a loss of vehicle control. Additionally, shattered glass posed a potential risk of injury to vehicle occupants and could have created a hazard for other motorists. The incident was reported to an authorized Mercedes-Benz dealership. The dealership confirmed that the sunroof glass had shattered. However, I do not agree with the conclusion that roadway debris caused the failure because I did not observe any object strike the vehicle and no supporting evidence has been provided to me. The vehicle has been inspected by an authorized Mercedes-Benz dealership and the incident has been reported to Mercedes-Benz Customer Assistance.No police report was filed because there was no collision or criminal activity involved. No warning lamps, messages, alerts, or other symptoms appeared before the failure. The sunroof functioned normally prior to the incident. The failure occurred suddenly and without warning while the vehicle was being driven. I am requesting a thorough review of this incident, including an evaluation of whether the sunroof failure may have resulted from a manufacturing defect, thermal stress, or another non-impact-related cause. I believe the circumstances surrounding this event warrant further investigation because the sudden failure created a significant safety concern while operating the vehicle at highway speeds. I am seeking a fair resolution and a detailed explanation of the basis for the determination that roadway debris caused the damage
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2021 CLA, 2019-2022 A-Class, 2022-2023 C-Class, 2024 CLE, 2020-2026 GLA/GLB, and 2023-2024 GLC vehicles. Please refer to MBUSA's recall report for specific model information. The micro-switch in the driver's door lock may corrode and fail to detect an open door, preventing the electronic parking brake or "Auto-Park" feature from engaging automatically. This may result in a vehicle rollaway.
Consequence & remedy
Consequence: A vehicle rollaway increases the risk of a crash or injury.
Remedy: Dealers will replace the driver's door lock, free of charge. Owner notification letters are expected to be mailed September 18, 2026. Owners may contact MBUSA customer service at 1-800-367-6372. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning July 31, 2026.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
Defect investigations
0
No exact-year investigations in this snapshot.
An investigation is not a finding of a defect, and closure does not prove a vehicle is problem-free.