AI Damage2023 Mercedes GLC: common problems
Owners of the 2023 Mercedes GLC filed 1 complaints with NHTSA, most often about service brakes. The maker issued 6 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 1
- Technical service bulletins (TSB)
- 6
What fails most often
- Service brakes: 1 complaints (100% of all).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Service brakes | 1 | 0 | 0 |
| Electrical system | 0 | 0 | 2 |
| Structure | 0 | 0 | 2 |
| Latches, locks, linkages | 0 | 0 | 1 |
| Steering | 0 | 0 | 1 |
| Suspension | 0 | 0 | 1 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Then I had to return the vehicle due to brakes squealing very loud. At 5000-7900 miles I was told I needed brakes all around my vehicle. No warranty was applied I paid cash. Left the shop and the noise from the front continued and the squealing from the brakes was still very loud.
Comparison
By complaint count this model year ranks 24,720 of 36,656 model years in the NHTSA data (among the 33% least complained about).
What to check before buying
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Latches, locks, linkages. Door, hood and tailgate latches, especially near the impact.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Complaint Traffic Light View is intermittently inoperable after updating the MBUX Multimedia System…
Complaint Traffic Light View is intermittently inoperable after updating the MBUX Multimedia System (A26/17) to E316.5. Cause Previously available MBUX software release. Remedy A new software remedy is currently…
- Complaint Sliding sunroof panel of panoramic sliding sunroof reversed (temporarily, once, or multiple…
Complaint Sliding sunroof panel of panoramic sliding sunroof reversed (temporarily, once, or multiple times) during closing process, without entrapment event. Cause Cause remains open. For analysis, the information…
- Complaint Tailgate opens unintentionally
Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so that…
- Complaint - AIRMATIC fault message in instrument cluster - Compressor inoperative, 40A compressor fuse…
Complaint - AIRMATIC fault message in instrument cluster - Compressor inoperative, 40A compressor fuse possibly triggered. - Vehicle level is not adjusted correctly, the vehicle possibly leans at an angle Cause…
- Complaint Staining on door trim strips and top and bottom trim elements on rear side windows Cause Damage…
Complaint Staining on door trim strips and top and bottom trim elements on rear side windows Cause Damage to protective coating (due to poor original optimization of coating) of door beltline trim strips, door upper…
- Complaint 1
Vibrations noticeable at steering wheel when front axle is excited when driving at a speed between 65 km/h and 130 km/h over an obstacle. ⢠Driving over deeply recessed manhole covers ⢠Driving over cross joints…
Questions and answers
What are the most common problems with the 2023 Mercedes GLC?
Owner complaints to NHTSA most often mention: service brakes. Total complaints: 1. The most frequent symptoms in complaint texts: knocking, grinding or other noise (100%).
How many service bulletins (TSB) were issued for the 2023 Mercedes GLC?
NHTSA lists 6 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2023 Mercedes GLC from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.