2023 Mercedes-Benz GLC 300 4MATICProblems, recalls & complaints

NHTSA has logged 9 owner complaints about the 2023 Mercedes-Benz GLC 300 4MATIC, most often about the forward collision avoidance. It is covered by 4 safety recalls, and for recall 25V-533 the manufacturer reports only 91% of affected cars repaired.

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through July 24, 2026. Updated daily.

Complaints by system

Where the 2023 Mercedes-Benz GLC 300 4MATIC has problems

9 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Forward collision avoidance20
Service brakes, hydraulic20
Structure20
Vehicle speed control10
Power train10
Equipment10

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

4 recalls

2023 Mercedes-Benz GLC 300 4MATIC recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

91%repaired · 2026 Q3

Steering: critical fasteners

Recall 25V-533 · Aug 20, 2025 · 3,749 vehicles · 3,399 repaired

Risk. A loose steering coupling can cause a loss of steering control, increasing the risk of a crash.

Problem, fix and repair progress →

91%repaired · 2026 Q3

Exterior lighting: headlights

Recall 25V-365 · Jun 11, 2025 · 127 vehicles · 116 repaired

Risk. Improperly adjusted headlights can reduce visibility, increasing the risk of a crash.

Problem, fix and repair progress →

94%repaired · 2026 Q3

Body: roof and pillars

Recall 25V-379 · Jun 6, 2025 · 92,851 vehicles · 86,852 repaired

Risk. In the event of a crash, insufficient impact protection can increase the risk of injury.

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mercedes-Benz.

Best & worst years

2023 vs. every other GLC 300 4MATIC year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the GLC 300 4MATIC median. How we score

'23'24'25'26
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
In owners' words

What GLC 300 4MATIC owners report

Recent forward collision avoidance complaints filed with NHTSA, shortened. Personal details are removed.

My 2023 GLC300 suffered a severe, unprovoked emergency brake deployment in traffic, nearly causing a pileup. on [XXX]. The car has only 14,500 miles and has a chronic history of dangerous, unprovoked Active Brake Assist deployments. It broke down twice in its first month of ownership for other…
Complaint 11747647 · Jul 1, 2026
The issue is regarding the “Traffic Sign Assist” (Owner’s Manual page 221) feature of the Adaptive Cruise Control System. Vehicle will be made available if requested. The function of the "Traffic Sign Assist" is to monitor roadside "Speed Limit" signs and the cruise control will increase or…
Complaint 11732594 · Apr 20, 2026

Own a 2023 GLC 300 4MATIC?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.