2023 Mercedes-Benz GLC 300 4MATIC Brakes Problems
- Complaints
- 2about this part
- Share
- 22%of 9 total for the year
- Median mileage
- 39,000miles
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 2 complaints about the brakes of the 2023 Mercedes-Benz GLC 300 4MATIC, 22% of the 9 complaints for this model year. Where a mileage was given, the median is 39,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 2023 Mercedes-Benz GLC 300 4MATIC. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed; however, the brake pedal felt as if it had released, and the vehicle failed to stop as needed. The contact stated that the failure was a recurring failure. The dealer was contacted but could not duplicate the failure. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 39,000.”
NHTSA complaint #11752677, filed 2026-07, 39,000 miles“The contact owns a 2023 Mercedes-Benz GLC300 4Matic. The contact stated that while driving at various speeds and coming to a stop, the vehicle skidded or slid and felt like it had been rear-ended. There was no warning light illuminated. The vehicle was taken to the dealer, but the failure could not be duplicated. The contact stated that the infotainment system was inoperable intermittently. Additionally, the contact stated that while driving 40-50 MPH and depressing the accelerator pedal, the vehicle failed to respond. The contact merged to the right lane to be able to pull over as necessary. …”
NHTSA complaint #11685231, filed 2025-09Related service bulletins
- 11038186Sep 22, 2026Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is similar to a tire or wheel vibration, it is usually readily…
- 11024405Oct 20, 2025Complaint At low speeds and light brake pressure, brakes will make a groaning or honking noise. Cause Frictional vibrations with very light brake pressure/modulations. Remedy…
Brakes: other model years
Other parts of the 2023 Mercedes-Benz GLC 300 4MATIC
4 complaintsForward collision avoidance
2 complaintsBody and structure
2 complaintsEquipment
1 complaintsTransmission and drivetrain
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2023 Mercedes-Benz GLC 300 4MATIC
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology