Total Complaints
1 filings
MERCEDES-BENZ GLS450 · model year
2020 MERCEDES-BENZ GLS450
1 NHTSA complaints, and 2 recall campaigns listed for this cohort. A VIN lookup is required to determine whether a specific vehicle has an unrepaired recall.
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.
The most frequently selected component label in reports for the 2020 GLS450 is fuel/propulsion system with 1 filings. Complaint categories reflect owner reports and intake categorization; they do not establish a defect pattern or cause. This cohort has 2 NHTSA recall campaigns listed below. Enter a VIN in NHTSA's official recall lookup to determine whether a specific vehicle has an unrepaired recall.
NHTSA currently has 15 investigation files overlapping the 2020 GLS450. Owners comparing this cohort against neighboring years should read the complaint-by-year trend as report volume, not a causal diagnosis. Use the related-complaint feed and the official recall lookup when researching a specific vehicle.
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 vintage: August 2026. 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.
Every figure on PlainCars is rendered directly from NHTSA complaint and safety data, no number is typed in by an editor. This year-specific record is rendered from NHTSA ODI, recall, and NCAP rows for the 2020 MERCEDES-BENZ GLS450; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.
Read our methodology - how this data is sourced, computed, and verified.