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What 4 owners told NHTSA about the 2024 Mercedes-benz GLB
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.
2 of 4 complaints match · Electrical system · clear filters
Jul 28, 2025Electrical system
Rear Camera malfunction The flap of the reversing camera opens and closes by itself during forward travel, making a loud thumb noise every time the car slows down to an intersection. No camera image is displayed in the head unit. This is a driving distraction for the operator and thus a safety issue as the sound is loud and its made constantly at every stop when you slow down. Dealer was able to reproduce and said this was normal behavior. Recommended disabling the Parktronic driving assistance feature to not engage sensors, but this in itself would be inactivating an important safety feature. This problem is widely reported online.
NHTSA ODI 11676547
Sep 3, 2024Electrical systemBackup camera & sensors
Every time I start my new Mercedes, the backup camera MUST recalibrate itself even if I never put the vehicle in reverse and am driving forward. This happens throughout the entire drive, every single time. The Mercedes forums all corroborate this as other models; not just the GLB, experience this. Mercedes denies anything is wrong and says this is “expected behavior for rear camera calibration”. This makes absolutely no sense why a rear camera would need to recalibrate itself on every drive even when you never place the car in reverse. Furthermore, the backup camera is the “pop out kind” so you constantly hear it popping out and popping back in. It’s extremely distracting as it continues to pop in and out as I slow in traffic at a signal or stop sign. This is with certainty, a manufacturing defect and must be remediated. Thanks for listening as it’s appreciated.
NHTSA ODI 11612434
Working with the data? Download all 4 complaints as CSV · fetched from NHTSA July 18, 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 GLB verdict →