Mercedes-Benz GLS 450 4MATIC problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
43 owner complaints analyzed
11 distinct recall campaigns
10,500 mi median reported failure mileage
Scope: 2022 to 2025 model years. Data snapshot: . 6 complaints include usable failure mileage.
Most common problems
Unknown Or Other is the most frequently named component, appearing in 11 of 43 complaints (25.6%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 10 | 23.3% |
| Engine operation | 7 | 16.3% |
| Transmission and shifting | 3 | 7.0% |
| Electrical and battery issues | 3 | 7.0% |
| Steering behavior | 1 | 2.3% |
| Fuel system concerns | 1 | 2.3% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Unknown Or Other | 11 |
| Electrical System | 10 |
| Forward Collision Avoidance: Automatic Emergency Braking | 9 |
| Engine | 8 |
| Service Brakes | 7 |
| Power Train | 4 |
| Wheels | 4 |
| Lane Departure: Assist | 3 |
Unknown Or Other: 11; Electrical System: 10; Forward Collision Avoidance: Automatic Emergency Braking: 9; Engine: 8; Service Brakes: 7; Power Train: 4; Wheels: 4; Lane Departure: Assist: 3
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 5 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 1 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 5; 25,000 to 49,999: 0; 50,000 to 74,999: 1; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (5). 37 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2022 | 1 |
| 2023 | 6 |
| 2024 | 11 |
| 2025 | 9 |
| 2026 | 16 |
2022: 1; 2023: 6; 2024: 11; 2025: 9; 2026: 16
Pattern summary
Unknown Or Other leads the component reports. Braking behavior appears in 10 complaint narratives. Engine operation appears in 7 complaint narratives. Transmission and shifting appears in 3 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11564507 · 2024-01-09 (January 9, 2024)
The car radar system apparently had a glitch and locked up the wheels while I was driving 25 mph. Yes, it is available for inspection. We are afraid to drive the car, it is just sitting. The car locked up so suddenly it made the rear wheel come off and rear of car fell to the ground. I was bruised by the seatbelt from the sudden stop. The dealer acted like they were unable to inspect it, I had the car towed there since it is under warranty. They said it had been in an accident. It had not been in an accident. I had to have policemen direct tra…
Owner-reported narrative. Look up ODI 11564507 at NHTSA ↗
Owner report 11592527 · 2024-06-04 (June 4, 2024)
As I approached a red light and removed my foot from the gas pedal to brake, my dashboard displayed several alarming messages: “Active Brake Assist Functions Limited See Owner's Manual,” “Active Blind Spot Assist Inoperative,” “To Deselect P or N Depress Brake and Start Engine,” and “Traction Control Inoperative See Owner's Manual.” Subsequently, all dashboard lights illuminated, the engine turned off, and the car shifted into neutral from drive, preventing me from restarting it. Despite turning on my hazard lights, I was stuck in the middle la…
Owner-reported narrative. Look up ODI 11592527 at NHTSA ↗
Owner report 11481726 · 2022-08-29 (August 29, 2022)
The contact owns a 2022 Mercedes-Benz GLS450. The contact stated that while his wife was driving approximately 35 MPH, the vehicle lost motive power and stalled. Additionally, the power steering was inoperable. There were several unknown warning lights illuminated; in addition to the check engine warning light being illuminated. The driver was able to pull over safely stop after coasting the vehicle. The vehicle was restarted; however, the check engine warning light remained illuminated. The vehicle was driven to the dealer. The dealer diagnose…
Owner-reported narrative. 200 miles reported. Look up ODI 11481726 at NHTSA ↗
Owner report 11507694 · 2023-02-16 (February 16, 2023)
I had been driving the car for about ten minutes when the 48v battery malfunction light came on. Within seconds, another warning appeared that said coolant was too hot, and the acceleration stopped accelerating and then went to a complete stop in the middle of the road. I didn't have time to pull over. It was dark and we were completely stalled. I turned the car off, put my hazards on, and waited a minute. When I restarted the car, it worked fine and I was able to make it home. If this had happened on the interstate, I would not have had time t…
Owner-reported narrative. Look up ODI 11507694 at NHTSA ↗
Owner report 11609931 · 2024-08-21 (August 21, 2024)
when coming to a stop and applying the break, the transmission stalled. a warning was issued around lane keeping assist and a second warning. Then the transmission light was on. It was not at risk in the moment because no one was behind me and I was coming to a stop sign. If it prevented me from stopping I might have gone through the stop sign It is at the dealership today to service. no warning lamps, messages or other symptoms.
Owner-reported narrative. Look up ODI 11609931 at NHTSA ↗
Owner report 11548136 · 2023-10-04 (October 4, 2023)
Twice the vehicle has stalled while driving. I see that there is a recall on my model for a faulty fuel pump which causes this problem, but my dealer claims my vehicle is not part of the recall even though it is having the same issue.
Owner-reported narrative. Look up ODI 11548136 at NHTSA ↗
Recalls by model year
All campaigns in the snapshot affecting each model year, including recalls announced years later.
Recall campaigns
Shared campaigns appear once in each affected model year.
| Category | Count |
|---|---|
| 2022 | 10 |
| 2023 | 5 |
| 2024 | 0 |
| 2025 | 1 |
2022: 10; 2023: 5; 2024: 0; 2025: 1