2019 Mercedes-Benz GLS 450 Brakes Problems
- Complaints
- 2about this part
- Share
- 8%of 25 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the brakes of the 2019 Mercedes-Benz GLS 450, 8% of the 25 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.
“Mercedes benz has grossly mis-represented the active brake system feature. The owners manual leaves out a key element, which is that the drivers foot needs to be off the pedal for the feature to activate. I.e. The feature will only work when the driver is not pressing the accelerator. This is a critical feature and one they shouldn't omit. I expect the the auto brake to come into effect when I'm approaching a car in front of me at a a pace that will lead to a collision. But it doesn't work that way. …”
NHTSA complaint #11300899, filed 2020-01“At first, the parking brake assist would appear when vehicle was put into park or when starting. We would have to release the parking brake each time. Then, the parking brake assist light would not go on, but the parking brake assist would engage and or be sticking while driving causing a burning smell and damage to the rear braking system including brake pads and calipers. The independent repair professional described this as being a very premature issue for this vehicle considering the age and mileage. …”
NHTSA complaint #11549440, filed 2023-10Related 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…
- 11014412Feb 3, 2025Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions. Cause Frictional vibrations Remedy AMG brake systems are designed for…
- 11013081Jan 18, 2025Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions. Cause Frictional vibrations Remedy AMG brake systems are designed for…
- 11012904Jan 16, 2025Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions. Cause Frictional vibrations Remedy AMG brake systems are designed for…
Brakes: other model years
Other parts of the 2019 Mercedes-Benz GLS 450
7 complaintsElectrical system
4 complaintsEngine
3 complaintsEngine cooling
3 complaintsTransmission and drivetrain
3 complaintsAir bags
2 complaintsBack-over prevention (rear camera)
2 complaintsBody and structure
2 complaintsSuspension
2 complaintsFuel system
1 complaintsSteering
1 complaintsTires
1 complaints
← All problems reported for the 2019 Mercedes-Benz GLS 450
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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