AutoUtility currently tracks 27 official NHTSA owner defect complaints for the 2019 Mercedes-Benz GLS. Engine & Cooling issues are the most frequently reported category, appearing in 8 complaints (29.6% of submitted records). Among these NHTSA complaint records, 1 filing cites a crash, 2 cite a fire, 1 reports one or more injuries. The 2019 Mercedes-Benz GLS belongs to the 2nd Generation / GL Facelift (X166) platform.
- • Total NHTSA Complaints: 27 reports
- • #1 Reported Problem Area: Engine & Cooling (8 reports • 29.6% of submitted complaints)
- • Secondary Problem Areas: Suspension (5), Electrical System (3)
- • Crash-Citing Complaints: 1 filings
- • Fire-Citing Complaints: 2 filings
- • Complaints Reporting Injuries / Fatalities: 1 injury filings • 0 fatality filings
Most Reported Problems for 2019 Mercedes-Benz GLS
Top automotive subsystem defect categories ranked by unique owner complaint volume in federal records
Engine & Cooling
Suspension
Electrical System
NHTSA records list 3 official safety recall campaigns for this model year involving the same broad component area:
- Campaign #22V365000 ELECTRICAL SYSTEM:SOFTWARE
- Campaign #24V207000 ELECTRICAL SYSTEM:WIRING
- Campaign #21V058000 ELECTRICAL SYSTEM:SOFTWARE
Driver Assistance & Safety Tech
Powertrain & Transmission
Recent NHTSA Owner Reports for 2019 Mercedes-Benz GLS
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"the vehicle suffered a sudden and catastrophic engine failure while being driven on the freeway at about 60mph. The engine seized and the vehicle lost propulsion creating a serious safety concern"
"The front vehicle hood keep saying it open but is lock keep getting a message saying is open I am afraid is might come out lock and cause me to an accident"
"I am reporting a serious safety defect in my 2019 Mercedes-Benz GLS450. My vehicle experienced low oil pressure warnings and engine warning lights, which were diagnosed as a faulty oil pump solenoid valve. The repair required removing major engine components, resulting in a cost of $5,000 that I..."
"When I attempt to shift from park to to drive or reverse or even neutral the car wont respond. this has happened a couple of times in the last two months. I press on the brake in order to shift and it wont respond to any commands . I then have no choice but to turn off the car and then turn it back..."
"The panoramic sunroof spontaneously shattered while driving down the road. The glass blew out from the inside out. There didn't appear to be any issues with the sunroof before this. As far as safety, just the noise of the explosion was enough to surprise the driver causing a jerking of the steering..."
Complaint History for Mercedes-Benz GLS
Reported defect complaint volume across sibling model years (2017–2026)
| Model Year | NHTSA Complaints | Crash Reports | Safety Recalls | Detailed Report |
|---|---|---|---|---|
| 2017 Mercedes-Benz GLS | 41 | 1 | 8 | View 2017 Problems → |
| 2018 Mercedes-Benz GLS | 22 | 1 | 4 | View 2018 Problems → |
| 2019 Mercedes-Benz GLS Current Page | 27 | 1 | 3 | Current |
| 2020 Mercedes-Benz GLS | 38 | 3 | 24 | View 2020 Problems → |
| 2021 Mercedes-Benz GLS | 37 | 2 | 12 | View 2021 Problems → |
| 2022 Mercedes-Benz GLS | 15 | 2 | 10 | View 2022 Problems → |
| 2023 Mercedes-Benz GLS | 10 | 0 | 5 | View 2023 Problems → |
| 2024 Mercedes-Benz GLS | 0 | 0 | 0 | View 2024 Problems → |
| 2025 Mercedes-Benz GLS | 0 | 0 | 0 | View 2025 Problems → |
| 2026 Mercedes-Benz GLS | 0 | 0 | 0 | View 2026 Problems → |
Detailed NHTSA Component Breakdown for 2019 Mercedes-Benz GLS
Complete distribution of consumer defect reports across all 16 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Reported Injury Entries | Reported Fatality Entries |
|---|---|---|---|---|---|
| Other / Uncategorized NHTSA category: UNKNOWN OR OTHER | 5 | 0 | 0 | 0 | 0 |
| Engine NHTSA category: ENGINE | 3 | 0 | 0 | 0 | 0 |
| Engine & Cooling NHTSA category: ENGINE AND ENGINE COOLING | 3 | 0 | 1 | 0 | 0 |
| Powertrain NHTSA category: POWER TRAIN | 2 | 0 | 0 | 0 | 0 |
| STEERING,SUSPENSION | 2 | 0 | 1 | 0 | 0 |
| Suspension NHTSA category: SUSPENSION | 2 | 0 | 0 | 0 | 0 |
| Air Bags NHTSA category: AIR BAGS | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,STRUCTURE,BACK OVER PREVENTION | 1 | 0 | 0 | 0 | 0 |
| ENGINE,ELECTRICAL SYSTEM | 1 | 0 | 0 | 0 | 0 |
| FUEL SYSTEM, GASOLINE,AIR BAGS | 1 | 1 | 0 | 2 | 0 |
| Structure & Body NHTSA category: STRUCTURE | 1 | 0 | 0 | 0 | 0 |
| SUSPENSION,ENGINE AND ENGINE COOLING,SEATS | 1 | 0 | 0 | 0 | 0 |
| Tires NHTSA category: TIRES | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,BACK OVER PREVENTION | 1 | 0 | 0 | 0 | 0 |
| VEHICLE SPEED CONTROL,SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.