Recalls, complaints, and safety data from NHTSA
The 2020 Mercedes-Benz GLS-Class has 0 recalls, 38 complaints.
0
Recalls
38
Complaints
N/A
Safety Rating
Data source: National Highway Traffic Safety Administration (NHTSA) · Last updated July 2, 2026
Overall
Not Rated
Front Crash
Not Rated
Side Crash
Not Rated
Rollover
Not Rated
Rating for: 2020 Mercedes-Benz GLS-Class SUV 4WD
| Date ↓ | Component | Summary |
|---|---|---|
| Apr 28, 2026 | ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM | The engine wiring harness insulation near the ignition coil connectors prematurely deteriorated due ... |
| Apr 22, 2026 | STRUCTURE | The contact owns a 2020 Mercedes Benz GLS. The contact stated that while driving on the highway, th... |
| Apr 15, 2026 | STRUCTURE,UNKNOWN OR OTHER | Window trim on the passenger rear window fell off while driving- it put others at risk by flying off... |
| Mar 22, 2026 | FORWARD COLLISION AVOIDANCE | On a sunny afternoon without zero clouds in the sky, 75 degrees I was driving at 35 mph on a two-lan... |
| Mar 18, 2026 | ELECTRICAL SYSTEM,AIR BAGS,VISIBILITY/WIPER | AMENDMENT TO ACTIVE CASE 11723015. CRITICAL AIRBAG & SAFETY DEFECTS. This files a safety defect ame... |
| Mar 8, 2026 | ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE,BACK OVER PREVENTION | The vehicle (2020 GLS 450) suffers from terminal infrastructure "Electronic Rot," resulting in a con... |
| Dec 14, 2025 | ELECTRICAL SYSTEM,ENGINE | The vehicle is experiencing deterioration of the main engine wiring harness insulation, resulting in... |
| Apr 20, 2025 | UNKNOWN OR OTHER | The sunroof spontaneously shattered while driving down the interstate. No other cars involved and no... |
| Mar 25, 2025 | ELECTRICAL SYSTEM | The vehicle, 2020 Mercedes-Benz GLS450, was being backed out of the garage when an electrical failur... |
| Mar 21, 2025 | POWER TRAIN | On numerous occasions the transmission does not fully down shift to the next lower gear and then whe... |
| Mar 7, 2025 | ELECTRICAL SYSTEM,ENGINE | I am writing to escalate an unresolved service issue with my 2020 Mercedes Benz GLS 450, VIN [XXX] .... |
| Jan 21, 2025 | SUSPENSION | The shock absorbers have prematurely failed as other recalled 2020 GLS vehicles, but our VIN is not ... |
| Jan 17, 2025 | SUSPENSION | The suspension has failed despite changing engine mounts. It is available for inspection if needed. ... |
| Jan 9, 2025 | ENGINE | On a long road trip - about halfway on [XXX] - received an error message on 48v system malfunction -... |
| Sep 8, 2024 | VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE | The adaptive cruise control feature of this vehicle on various highways [XXX] , [XXX] and the [XXX]... |
| Sep 2, 2024 | VISIBILITY/WIPER | intermittent rear view camera inoperable when you shift from park to reverse. Doesnt come on even if... |
| Aug 18, 2024 | FORWARD COLLISION AVOIDANCE | We intermittently experience phantom braking, including on the highway with no objects or vehicles a... |
| Jul 9, 2024 | FORWARD COLLISION AVOIDANCE | I have received multiple notifications over several months that read "Camera view restricted". This ... |
| May 28, 2024 | SERVICE BRAKES | The passenger rear wheel brake caliper lower bolt got loose. The bolt is most likely not available f... |
| May 6, 2024 | SERVICE BRAKES,BACK OVER PREVENTION,FORWARD COLLISION AVOIDANCE | Today around 6:47pm. I was reversing my car and I noticed another car in my backup camera and tried ... |