MERCEDES-BENZ GLS 450 4MATIC · model year

2025 MERCEDES-BENZ GLS 450 4MATIC

7 NHTSA complaints, and 1 active recall for this specific cohort.

NHTSA overall rating

Not crash-tested

New Car Assessment Program

The 2025MERCEDES-BENZGLS 450 4MATIC carries 7 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 2 injuries, 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 2025 GLS 450 4MATIC is engine with 1 filings, followed by engine and engine cooling (1) and visibility:sun/moon roof assembly (1). 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 1 active recall campaign, 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 2025 GLS 450 4MATIC. 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.

7
Complaints
0
Crashes
0
Fires
2
Injuries
0
Deaths

Total Complaints

7 filings

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

ComponentCount
ENGINE1
ENGINE AND ENGINE COOLING1
VISIBILITY:SUN/MOON ROOF ASSEMBLY1
STRUCTURE:BODY:ROOF AND PILLARS1
SERVICE BRAKES1
ELECTRICAL SYSTEM1
SUSPENSION1

Recalls (1)

25V32500030/05/2025

VISIBILITY:REARVIEW MIRRORS/DEVICES:INTERIOR

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024 GLE 350 4MATIC, 2025 GLE 450e 4MATIC, GLE 450 4MATIC Coupe, GLE 450 4MATIC, GLS 450 4MATIC, Maybach GLS 600 4MATIC, AMG GLE 53 4MATIC, AMG GLE 53 4MATIC Coupe, AMG GLE 63 S 4MATIC Coupe, and AMG GLS 63 4MATIC vehicles. The multi-purpose camer

Recent Complaints

20251208SERVICE BRAKES

I am writing to file a formal complaint regarding a serious malfunction of the Automatic Emergency Braking (AEB) system. This malfunction caused my vehicle to unexpectedly perform an emergency stop without a valid cause, resulting in significant damage to its suspension system. Incident Details: •Date of Incident: Friday, December 5, 2025, between 10:45 am and 11:15 am ET •Location: Community Baptist Church of Englewood, 224 1St, Englewood, New Jersey. •Description: While driving under normal conditions on a clear, dry road with no obstructions, the vehicle's AEB system engaged suddenly and forcefully. The abrupt, maximum-force braking caused severe stress and impact on the vehicle's suspension components, leading to a bent suspension linkage/component. The car is currently unsafe to drive. The damage to the suspension was not a result of normal wear and tear or an external impact caused by a collision. It was a direct consequence of a failure within a critical safety system des

20251208ELECTRICAL SYSTEM

I am writing to file a formal complaint regarding a serious malfunction of the Automatic Emergency Braking (AEB) system. This malfunction caused my vehicle to unexpectedly perform an emergency stop without a valid cause, resulting in significant damage to its suspension system. Incident Details: •Date of Incident: Friday, December 5, 2025, between 10:45 am and 11:15 am ET •Location: Community Baptist Church of Englewood, 224 1St, Englewood, New Jersey. •Description: While driving under normal conditions on a clear, dry road with no obstructions, the vehicle's AEB system engaged suddenly and forcefully. The abrupt, maximum-force braking caused severe stress and impact on the vehicle's suspension components, leading to a bent suspension linkage/component. The car is currently unsafe to drive. The damage to the suspension was not a result of normal wear and tear or an external impact caused by a collision. It was a direct consequence of a failure within a critical safety system des

20251208SUSPENSION

I am writing to file a formal complaint regarding a serious malfunction of the Automatic Emergency Braking (AEB) system. This malfunction caused my vehicle to unexpectedly perform an emergency stop without a valid cause, resulting in significant damage to its suspension system. Incident Details: •Date of Incident: Friday, December 5, 2025, between 10:45 am and 11:15 am ET •Location: Community Baptist Church of Englewood, 224 1St, Englewood, New Jersey. •Description: While driving under normal conditions on a clear, dry road with no obstructions, the vehicle's AEB system engaged suddenly and forcefully. The abrupt, maximum-force braking caused severe stress and impact on the vehicle's suspension components, leading to a bent suspension linkage/component. The car is currently unsafe to drive. The damage to the suspension was not a result of normal wear and tear or an external impact caused by a collision. It was a direct consequence of a failure within a critical safety system des

20251113VISIBILITY:SUN/MOON ROOF ASSEMBLY

The contact owns a 2025 Mercedes-Benz GLS450. The contact stated that while driving approximately 50 MPH, a loud popping noise had occurred, and suddenly the panoramic glass sunroof exploded, causing shards of glass to fall into the cabin of the vehicle. During the incident, shards of glass contacted the driver, front seat passenger, and middle row passenger located on the driver's side. The driver sustained lacerations to the left hand and neck, which would require medical treatment. The children were traumatized by the event. The cause of the failure was not determined. The manufacturer and local dealer were notified of the failure. The failure mileage was 10,000.

Mileage: 10,000

20251113STRUCTURE:BODY:ROOF AND PILLARS

The contact owns a 2025 Mercedes-Benz GLS450. The contact stated that while driving approximately 50 MPH, a loud popping noise had occurred, and suddenly the panoramic glass sunroof exploded, causing shards of glass to fall into the cabin of the vehicle. During the incident, shards of glass contacted the driver, front seat passenger, and middle row passenger located on the driver's side. The driver sustained lacerations to the left hand and neck, which would require medical treatment. The children were traumatized by the event. The cause of the failure was not determined. The manufacturer and local dealer were notified of the failure. The failure mileage was 10,000.

Mileage: 10,000

20251008ENGINE

The contact owns a 2025 Mercedes-Benz GLS450 4Matic. The contact stated that while driving at an undisclosed speed, the engine overheated, with several unknown warning lights illuminated. The vehicle was taken to the dealer, where it was diagnosed that the coolant pump had failed and needed to be replaced. The vehicle was repaired. The contact then stated that while driving at an undisclosed speed, there was a metallic clicking sound was coming from the engine compartment, and there were no warning lights illuminated. The contact stated that the front of the vehicle near the instrument panel was very hot. The vehicle was taken back to the dealer, where it was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 14,050. The VIN was not available.

Mileage: 14,050

20251008ENGINE AND ENGINE COOLING

The contact owns a 2025 Mercedes-Benz GLS450 4Matic. The contact stated that while driving at an undisclosed speed, the engine overheated, with several unknown warning lights illuminated. The vehicle was taken to the dealer, where it was diagnosed that the coolant pump had failed and needed to be replaced. The vehicle was repaired. The contact then stated that while driving at an undisclosed speed, there was a metallic clicking sound was coming from the engine compartment, and there were no warning lights illuminated. The contact stated that the front of the vehicle near the instrument panel was very hot. The vehicle was taken back to the dealer, where it was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 14,050. The VIN was not available.

Mileage: 14,050

Compare 2025MERCEDES-BENZGLS 450 4MATIC to Similar Vehicles

NHTSA Investigations

View all investigations

Frequently Asked Questions

How many complaints does the 2025 MERCEDES-BENZ GLS 450 4MATIC have?
The 2025 MERCEDES-BENZ GLS 450 4MATIC has 7 NHTSA complaints, 0 crashes, 0 fires, 2 injuries, and 0 deaths reported.
Are there any recalls for the 2025 MERCEDES-BENZ GLS 450 4MATIC?
Yes, the 2025 MERCEDES-BENZ GLS 450 4MATIC has 1 recall(s). The most common affected component is VISIBILITY:REARVIEW MIRRORS/DEVICES:INTERIOR. Recalls are issued by NHTSA and manufacturers must provide a free remedy.
What are the most common problems with the 2025 MERCEDES-BENZ GLS 450 4MATIC?
The most-complained component for the 2025 MERCEDES-BENZ GLS 450 4MATIC is ENGINE with 1 complaints. Other frequently reported areas include ENGINE AND ENGINE COOLING and VISIBILITY:SUN/MOON ROOF ASSEMBLY.
Is the 2025 MERCEDES-BENZ GLS 450 4MATIC 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.