Home · 2021 Mercedes-benz GLC Coupe · Complaints
What 61 owners told NHTSA about the 2021 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.
3 of 61 complaints match · Body & structure · clear filters
May 30, 2022Body & structureVisibility & wipers
Sunroof glass panel exploded outward. Fabric retractable interior sunroof liner did contain all of the fragmented safety glass. No prior impact on or to the sunroof. If the interior fabric sunroof liner had been retracted, the interior of the vehicle would have been showered with the glass shards impacting the driver and all passengers. There was no warning. A loud sound similar to gunshot occurred as the sunroof failed. The vehicle was driven to a local windshield repair facility for examination. I contacted and notified Mercedes Benz USA of the incident. They have not done a follow-up as of this date. I contacted Mercedes Benz of Anchorage AK and will do a follow-up with that dealership on May 31 2022.
NHTSA ODI 11466660
Jul 9, 2021Body & structure
Excessive frame rust, the pictures I included are all the patches that have been done to the frame so far.
NHTSA ODI 11424052
Mar 8, 2021Body & structureEngine
I HAVE PURCHASED THE 2021 MERCEDES-BENZ GLC 300 4MATIC COUPE AND NOTICED A DESIGN FLAW ON THE CAR. AS YOU CAN SEE IN THE ATTACHED PICTURE, THE FRONT BUMPER PROVIDES NO PROTECTION TO THE RADIATOR. IT HAS ALREADY STARTED CHIPPING DUE TO THE ROCK DAMAGE. THIS CAN LEAVE THE CAR IMPAIRED ON THE FREEWAY WHICH CAN BE DANGEROUS. I DID CONTACT THE DEALER AND THEY SAID THERE IS NOTHING THEY CAN DO.
NHTSA ODI 11399796
Working with the data? Download all 61 complaints as CSV · fetched from NHTSA July 20, 2026