Total Complaints
1 filings
MERCEDES-BENZ GLS450 · model year
2020 MERCEDES-BENZ GLS450
1 NHTSA complaints, and 2 active recalls for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2020MERCEDES-BENZGLS450 carries 1 consumer safety complaint in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 1 injury, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2020 GLS450 is fuel/propulsion system with 1 filings. Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 2 active recall campaigns, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 15 investigation files overlapping the 2020 GLS450. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
1
Complaints
0
Crashes
0
Fires
1
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| FUEL/PROPULSION SYSTEM | 1 |
Recalls (2)
20V08900014/02/2020
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 CLA250, CLA250 4MATIC and CLA35 AMG 4MATIC, 2020-2021 GLE350, GLE350 4MATIC, GLE450 4MATIC, GLS450 4MATIC and GLS580 4MATIC and 2021 GLE53 AMG Coupe, GLE63S AMG 4MATIC, GLS63 AMG 4MATIC and Maybach GLS600 4MATIC vehicles. The instrument clus
19V70900004/10/2019
STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE350, GLE350 4MATIC, GLE450 4MATIC, GLS450 4MATIC, and GLS580 4MATIC vehicles. The rear door window trim may detach.
Recent Complaints
20200115FUEL/PROPULSION SYSTEM
TL* THE CONTACT OWNS A 2020 MERCEDES-BENZ GLS450. THE CONTACT STATED SHE NOTICED A FUEL ODOR COMING FROM THE VEHICLE WHEN THE WINDOWS WERE OPEN. THE CONTACT SOUGHT MEDICAL ATTENTION DUE TO BREATHING PROBLEMS. THE VEHICLE WAS TAKEN TO LOCAL DEALER ED HICKS IMPORTS LOCATED AT 3102 S PADRE ISLAND DR, CORPUS CHRISTI, TX 78415 (361) 854-1955, WHERE IT WAS DIAGNOSED THE FIRST TIME WITH A MELTING STICKER ON THE CADILLAC AND IT NEEDING TO BE REMOVED. THE VEHICLE WAS REPAIRED BUT CONTINUE TO EXPERIENCE THE FAILURE. THE CONTACT STATED ON 12/21/2019, WHILE DRIVING 7 MPH, WHEN SHE HEARD MULTIPLE LOUD ABNORMAL NOISES (EXPLOSIONS). THE VEHICLE WAS TAKEN BACK TO THE SAME DEALER, WHERE IT WAS DIAGNOSED THAT THE CADILLAC CONVERTER AND TURBO NEEDED TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED AS OF YET. THE MANUFACTURER HAD NOT BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS 1,000.
Mileage: 1,000
Compare 2020MERCEDES-BENZGLS450 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 2020 MERCEDES-BENZ GLS450 have?▼
The 2020 MERCEDES-BENZ GLS450 has 1 NHTSA complaints, 0 crashes, 0 fires, 1 injuries, and 0 deaths reported.
Are there any recalls for the 2020 MERCEDES-BENZ GLS450?▼
Yes, the 2020 MERCEDES-BENZ GLS450 has 2 recall(s). The most common affected component is ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Recalls are issued by NHTSA and manufacturers must provide a free remedy.
What are the most common problems with the 2020 MERCEDES-BENZ GLS450?▼
The most-complained component for the 2020 MERCEDES-BENZ GLS450 is FUEL/PROPULSION SYSTEM with 1 complaints. Other frequently reported areas include various components.
Is the 2020 MERCEDES-BENZ GLS450 safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.