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What 15 owners told NHTSA about the 2022 Mercedes-benz GLS

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (15)Crash / fire / injury (3)Driver assistance (5)Electrical system (4)Engine (3)Speed control (3)Transmission & drivetrain (3)Lane Departure (2)Brakes (1)Fuel system (1)Visibility & wipers (1)Wheels (1)

1 of 15 complaints match · Visibility & wipers · clear filters

Apr 16, 2026Visibility & wipers

The contact owns a 2022 Mercedes-Benz GLS450. The contact stated that while driving at an undisclosed speed, there was an abnormally loud sound coming from the roof of the vehicle. The vehicle was pulled over to the shoulder lane and the contact discovered that the sunroof glass had shattered. No warning lights were illuminated. A dealer was contacted, and the dealer suggested that the insurance provider be contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 50,000.

NHTSA ODI 11731633

Working with the data? Download all 15 complaints as CSV · fetched from NHTSA July 20, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2022 Mercedes-benz GLS verdict →