NHTSA Data Explorer

Mercedes-Benz GLS450

Data refreshed June 26, 2026

Select a model year to filter results to that year of the Mercedes-Benz GLS450.

Complaints

176

Active records

Recalls

38

Active records

TSBs

274

Active records

Filing history

Monthly totals over the last 20 years. Click a legend item to show or hide that series.

Reported severity

Based on consumer complaints filed since 2000. Recalls and TSBs do not include severity data.

Deaths

0

Injuries

9

Crashes

14

Fires

13

Top reported issues — Mercedes-Benz GLS450

Click a category to expand its values.

Operating state

52

Condition issue

48

Reporting mechanism

44

Driver assistance issue

27

Engine behavior

24

Thermal issue

23

Braking behavior

20

Performance issue

18

Transmission/drivetrain behavior

12

Electrical issue

11

Fluid issue

11

Electrified system issue

9

Safety restraint issue

9

Starting behavior

9

Noise

8

Powering on/off behavior

8

Smell

8

Infotainment behavior

7

Access/entry issue

5

Ride/handling behavior

5

Safety restraint behavior

5

Steering behavior

5

Lighting behavior

4

Vibration/harshness

3

HVAC behavior

2

Communication/network issue

1

Recent change

1

Wiper/washer behavior

1

Recent filings

The 10 most recent filings for each type.

2019 MERCEDES-BENZ GLS 450

Filed Jun 22, 2026


The front vehicle hood keep saying it open but is lock keep getting a message saying is open I am afraid is might come out lock and cause me to an accident

2024 MERCEDES-BENZ GLS 450

Filed Jun 9, 2026


1 injured

[XXX] girl went in back passenger door (rear facing car seat present), crouched under seat area to climb to middle seat when [XXX] brother push button and seat moved forward without stopping crushing [XXX] old head between back of seat and back of Car seat. There was no safety stop, was stuck mother has to press button to move seat back to release head. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

2020 MERCEDES-BENZ GLS 450

Filed Jun 3, 2026


Crash

AMENDMENT TO ACTIVE CASE 11723015. CRITICAL AIRBAG & SAFETY DEFECTS. This files a safety defect amendment to open case 11723015. Diagnostic scans confirm central data bus network collapse on VIN [XXX] has migrated into safety-critical occupant restraint and visibility modules, violating 49 U.S.C. § 30118. I. AIRBAG & RESTRAINT HAZARDS Scans from [XXX], document active faults: DTC U042782: Implausible data received from Electronic Ignition Lock. The SRS module receives corrupted data from…

2025 MERCEDES-BENZ GLS 450 4MATIC

Filed May 26, 2026


Brake pads completely worn after 11K miles - this seems like premature wear and like there is a potential issue with the braking system on the GLS450.

2019 MERCEDES-BENZ GLS 450

Filed May 22, 2026


I am reporting a serious safety defect in my 2019 Mercedes-Benz GLS450. My vehicle experienced low oil pressure warnings and engine warning lights, which were diagnosed as a faulty oil pump solenoid valve. The repair required removing major engine components, resulting in a cost of $5,000 that I paid personally. It is important to note that Mercedes-Benz updated the valve design in the following model year, indicating that the company was aware of a defect in the original design. This…

2022 MERCEDES-BENZ GLS 450

Filed May 15, 2026


I have been receiving errors that visibility is reduced. Lane departure system is not working and car has brake suddenly in moderate traffic despite not being close to vehicle ahead of me.

2020 MERCEDES-BENZ GLS 450

Filed May 15, 2026


The contact owns a 2020 Mercedes Benz GLS. The contact stated that while driving on the highway, the rear door window trim bars on the passenger side detached from the window. The vehicle was taken to the dealer where they diagnosed as a rear door window trim detachment however the vehicle was not repaired. The manufacturer was not notified of the issue. The approximate failure mileage 65,000.

2020 MERCEDES-BENZ GLS 450

Filed May 15, 2026


Window trim on the passenger rear window fell off while driving- it put others at risk by flying off the vehicle on the interstate- Mercedes Benz of Omaha quoted replacement of the window trim parts- no warning messages on dash

2020 MERCEDES-BENZ GLS 450

Filed May 10, 2026


Fire

The engine wiring harness insulation near the ignition coil connectors prematurely deteriorated due to prolonged exposure to engine heat in the turbocharger/exhaust area. Multiple wiring connectors exhibited brittle, cracked insulation with exposed conductors. The degraded wiring began shorting within the ignition system, causing engine misfires, ignition circuit faults, and eventual loss of engine operation. While being operated by a rental customer the vehicle developed severe misfires…

2024 MERCEDES-BENZ GLS 450

Filed May 10, 2026


I am submitting a complaint regarding the air conditioning system in my vehicle. The vehicle has a refrigerant (Freon) leak that causes the air conditioning system to stop cooling properly. In addition, there is a loud abnormal noise coming from the AC system while operating. The issue has progressively become worse. The air conditioner either blows warm air or loses cooling performance completely, especially during normal driving conditions. The abnormal noise appears when the AC compressor…

Data sourced from NHTSA's public datasets. Issue classifications are generated by Repair Surge. About this data.

Updated June 26, 2026. Refreshed nightly.