Model year record

2019 Mercedes-Benz GLS450 recalls & problems

The 2019 Mercedes-Benz GLS450 has 3 safety recalls and 25 owner complaints on file with NHTSA. The most-reported problem area is unknown or other (7 complaints).

Recalls3safety recalls

Complaints25filed by owners

Crashes · fires1 · 1reported in complaints

Injuries · deaths2 · 0reported in complaints

Safety recalls

Electrical systemMar 15, 2024

Wiring

Recall 24V207000116,020 vehicles

Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 GLE 350, 2020-2024 GLE 450, 2020-2023 GLS 580, GLE 580, 2019-2023 GLS 450, 2021-2023 Maybach GLS 600, AMG GLS 63, 2021-2024 AMG GLE 53, AMG GLE 53 Coupe, and AMG GLE 63 S vehicles. A 48-Volt ground connection under the passenger seat may not be secured properly, resulting in the ground connection overheating.
Risk: An overheated ground connection can increase the risk of a fire.
Fix: Dealers will inspect and tighten the 48-Volt ground connection as necessary, free of charge. Owner notification letters were mailed on May 3, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2024040002.

CommunicationMay 20, 2022

Auto crash notification

Recall 22V365000242,722 vehicles

Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.
Risk: A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
Fix: The communication module software will be updated through an Over-the-Air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed July 8, 2022. Owner notification letters will be mailed in phases, on July 8, 2022, May 17, 2024, July 29, 2024, and September 27, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers are for this recall is 2022060005 and 2023110006.

Components: Communication › Auto crash notification; Electrical system › Software

CommunicationFeb 5, 2021

Auto crash notification

Recall 21V0580001,292,258 vehicles

Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
Risk: Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Fix: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.

Components: Communication › Auto crash notification; Electrical system › Software

Recall repairs are free at any authorised dealer. A recall listed here may already have been fixed on a particular car: enter its 17-character VIN at nhtsa.gov/recalls to see open recalls.

Fuel economy

GLS450 4matic

18mpg combined

City / highway	16 / 22 mpg
Fuel	Premium Gasoline

3 L · 6 cyl · Automatic 9-spd · 4-Wheel Drive · about $4,550/year to fuel

EPA estimates from fueleconomy.gov for each engine and transmission sold. Annual cost is the EPA's estimate for 15,000 miles a year at its current fuel and electricity price assumptions. Your results will vary.

What owners report

Problem area	Complaints	Crashes	Fires	Injuries	Typical mileage*
Unknown or other	7	0	0	0	—
Electrical system12v/24v/48v battery	4	0	0	0	—
Engine	3	0	0	0	—
Engine and engine cooling	3	0	1	0	38,000 mi
Power train	3	0	0	0	—
Service brakes	2	0	0	0	—
Air bags	2	1	0	2	—
Back over preventionWarnings	2	0	0	0	—
StructureBody; Body › Hood	2	0	0	0	—
Suspension	2	0	0	0	—
Vehicle speed control	1	0	0	0	—
Fuel system, gasoline	1	1	0	2	—

*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.

Recent owner complaints

Electrical system
The AC/Heating control unit failed prematurely at 40,000 miles, causing a complete loss of cabin heat and windshield defrosting capabilities. This creates a severe visibility and driving hazard in freezing weather, and risks the safety of a dependent child with high medical vulnerabilities.
Oct 15, 2026
Power train
The contact owns a 2019 Mercedes-Benz GLS450 4Matic. The contact stated that vehicle was taken to the dealer for routine service, and it was discovered that the U-joint on front driveshaft was fractured and needed to be replaced. The contact associated the failure with NHTSA Campaign Number: 26V216000 (Power Train); however, the VIN was not included in the recall. The failure mileage was approximately 56,000.
Aug 21, 2026 · 56,000 miles
Power train
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
Aug 6, 2026
Structure › Body › Hood
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
May 21, 2026
Engine
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 paid personally. It is important to note that Mercedes-Benz updated the valve design in the following model year, indicating that the company was aware of a defect in the original design. This demonstrates that the failure is recurring and not isolated, creating a serious safety riskâlow oil pressure can lead to catastrophic engine failure while driving, endangering the driver and passengers. I…
Mar 16, 2026
Power train
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 on. that usually works. this is unsafe if i was at an open parking lot or even on the street doing a U-turn and I don't turn right then having to reverse and the car doesn't respond. very scary stuff.
Feb 16, 2026
Unknown or other
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 wheel into the opposite lane of traffic which could have caused a head on collision. If the sunroof shade would have been open, the glass would have came down the drivers and passengers as they were going down the road. Saying this was distracting is an understatement. I called the local Mercedes dealership and was completely dismissed by them. They said it would have to be repaired by a glass…
Nov 14, 2024
Air bags
Shows an error on the dashboard: 3rd Row, Right Malfunction Consult Workshop
Jun 10, 2025

Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.