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What 23 owners told NHTSA about the 2024 Mercedes-benz GLC Coupe

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 (23)Crash / fire / injury (2)Engine (7)Transmission & drivetrain (7)Electrical system (6)Brakes (3)Lights (3)Driver assistance (2)Airbags (1)Seat belts (1)Speed control (1)Visibility & wipers (1)

1 of 23 complaints match · Speed control · clear filters

Aug 2, 2025Transmission & drivetrainSpeed controlEngine

•Incident Details: •Both sudden shutdown incidents •“12V Battery” warning (first incident) •“Stop - Switch Off Vehicle” warning (second incident) •That it happened with children in the car on a tollway Safety Concerns: •Loss of power steering/braking •Risk of collision •Repeated failures on a 1-year-old vehicle

NHTSA ODI 11677934

Working with the data? Download all 23 complaints as CSV · fetched from NHTSA July 19, 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 2024 Mercedes-benz GLC Coupe verdict →