There are 3 stored owner reports matching the body & structure leading-label group for the 2017 Mercedes-Benz GLC-Class in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)THE PANORAMIC SUNROOF EXPLODED OUTWARD. I WAS DRIVING AT HIGHWAY SPEED. THIS IS THE SECOND TIME THAT THIS HAS HAPPENED ON THIS VEHICLE
EXPLODING PANORAMIC SUNROOF: WHILE DRIVING ABOUT 40MPH ON ROUTE 35SOUTH (MIDDLETOWN, NJ) IN 30 DEGREE WEATHER AT 7:30PM ON 5FEB2018 THE FORWARD PANEL OF THE PANORAMIC SUNROOF EXPLODED. THERE WERE NO OTHER CARS AROUND ME. IT WAS A LOUD POP EXPLOSION. THE SAFETY GLASS LOOKS PUSHED OUT AND GLASS STARTED TO FLY BEHIND THE CAR ONTO THE ROAD. I PULLED ONTO THE SHOULDER AND I CONTACTED MERCEDES HELP LINE FOR ASSISTANCE. THEY TOLD ME TO TAKE THE CAR TO THE NEAREST DEALER (MY LOCAL DEALER CONTEMPORARY MOTORS IN LITTLE SILVER, NJ). I DID A NIGHT DROP BOX DROP OFF. MERCEDES IS NOW ACCESSING THE ROOF.
TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ GLC43. WHILE DRIVING, THE CONTACT NOTICED A SQUEAKY NOISE AROUND THE DASHBOARD AREA WHILE DRIVING OVER BUMPS IN THE ROAD. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF ROCKVILLE CENTRE (650 SUNRISE HWY, ROCKVILLE CENTRE, NY 11570 (516) 766-6900) WHERE NO DIAGNOSTIC FAILURE CODES WERE FOUND AND THE FAILURE COULD NOT BE REPLICATED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE AND A TECHNICIAN WAS SENT TO MERCEDES-BENZ OF ROCKVILLE CENTRE, BUT THE FAILURE COULD NOT BE REPLICATED. THE CONTACT STATED THAT ADHESIVE WAS PLACED ON THE DOOR. THE VIN AND FAILURE MILEAGE WERE UNAVAILABLE.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 31, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.