2024 Mercedes-Benz GLC 300 Other or unknown Problems
- Complaints
- 3about this part
- Share
- 14%of 21 total for the year
- Median mileage
- —not reported
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 3 complaints about the other or unknown of the 2024 Mercedes-Benz GLC 300, 14% of the 21 complaints for this model year.
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.
“Attention Assist System Suspended notification comes on randomly on vehicle while driving, rendering driver defenseless with regard to safety warnings that would otherwise be in effect, such as blind spot assist, attention assist, which are vital components for safe driving. This has happened on numerous occasions, most recently on 12/06/2024 while driving under destination route guidance. It has also happened when car was stopped to retrieve mail at residence mail box and, at other times for no apparent reason, while driving. …”
NHTSA complaint #11629760, filed 2024-12“Brand new '24 GLC300 4MATIC. Engine light came on with no error message. Brought it in for service. Miscellaneous engine repair states: Found current code POA7F00 in drivetrain control unit. Followed LI54.10-P-077250. Cleared codes. Drained 48V battery to below 25% SOC. Charged vehicle to 70% SOC. Job complete. Service foreman mentioned that the service performed may not resolve issue. He contacted Mercedes-Benz Engineering and said no fix at this time and no ETA. Left service with no more engine light on. However, it didn't take long, and the engine light came on again. …”
NHTSA complaint #11566165, filed 2024-01“Our SUV is 6 weeks new and was purchased new at the mercedes dealership. Rear hatch: when standing behind vehicle rear door hatch closes randomly with no warning or beep. Closes very quickly and hits head very hard. Feet are not near the bumber which eliminates the rear foot action that closes the hatch. When the hatch hits your head it could knock you out especially if your ederly or a child. Also if you try and stop the hatch cosing its very strong and takes a lot of strength. When you use the remote or button in car to open hatch it opens so fast and beeps to late to alert door is opening. …”
NHTSA complaint #11612085, filed 2024-09Related service bulletins
- 11035780Aug 4, 2026Complaint Mercedes-Benz USA is currently experiencing limited availability of transmission fluid specification ATF 236.17 due to a global supply constraint. 236.17 ATF 1L and 5L…
- 11031558Apr 24, 2026Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names…
- 11030301Mar 25, 2026Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names…
- 11028809Feb 13, 2026Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the TIREFIT sealant bottle may not meet specifications. The…
- 11027782Jan 21, 2026Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names…
- 11023932Oct 3, 2025Issue Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the TIREFIT sealant bottle may not meet specifications. The…
- 11014398Feb 20, 2025Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names…
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 3 | 19% |
| 2024 | 3 | 14% |
| 2023 | 9 | 16% |
| 2022 | 7 | 11% |
| 2021 | 7 | 10% |
| 2020 | 15 | 21% |
| 2019 | 15 | 32% |
| 2018 | 20 | 23% |
| 2017 | 13 | 13% |
| 2016 | 21 | 16% |
Other parts of the 2024 Mercedes-Benz GLC 300
7 complaintsElectrical system
6 complaintsTransmission and drivetrain
5 complaintsBrakes
3 complaintsExterior lighting
3 complaintsForward collision avoidance
2 complaintsAir bags
1 complaintsSeat belts
1 complaintsVehicle speed control
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2024 Mercedes-Benz GLC 300
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