2019 Mercedes-Benz GLS450 Problems, Complaints & Recalls

Source: NHTSA · Updated Sep 2, 2026 · 24 owner complaints analyzed

Compared with other GLS450 years
Fewer complaints than other years 4th of 6 for complaints
NHTSA crash rating
Not rated

Owners have filed 24 complaints with NHTSA about the 2019 Mercedes-Benz GLS450. That ranks 4th out of 6 GLS450 model years for complaints. The most reported problem area is unknown or other (6 complaints, 25%), typically at around 2,255 miles. Complaints mention 1 crash, 1 fire, 2 injuries. There are 3 safety recalls covering this model year.

Complaints are unverified owner reports and are not adjusted for sales volume.

Compare with another car

Most common 2019 Mercedes-Benz GLS450 problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Unknown or Other6 · ~2,255 mi
Electrical System3 · ~13,000 mi
Engine3 · ~13,000 mi
Engine and Engine Cooling3 · ~38,000 mi
Power Train3 · ~56,000 mi
Air Bags2 · ~15,000 mi
Back Over Prevention2
Service Brakes2
Structure2
Suspension2
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Unknown or Other625%2,255——
Electrical System313%13,000——
Engine313%13,000——
Engine and Engine Cooling313%38,000——
Power Train313%56,000——
Air Bags28%15,000——
Back Over Prevention28%———
Service Brakes28%———
Structure28%———
Suspension28%———
Fuel System, Gasoline14%15,000——
Steering14%———
Tires14%34,000——
Vehicle Speed Control14%———

One complaint can list several problem areas, so shares can add up to more than 100%.

Complaints by year received

Peak: 2024, with 5 complaints
2019: 2201922020: 2202022021: 1202112022: 4202242023: 3202332024: 5202452025: 2202522026: 520265

n = 24 complaints · Source: NHTSA

2019 Mercedes-Benz GLS450 recalls (3)

Tap a recall to see the problem, the risk and the fix.

Electrical system:wiringMar 15, 2024 · NHTSA campaign 24V207000 · 116,020 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.

Electrical system:software; communication: auto crash notificationMay 20, 2022 · NHTSA campaign 22V365000 · 242,722 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.

Communication: auto crash notification; electrical system:softwareFeb 5, 2021 · NHTSA campaign 21V058000 · 1,292,258 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.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

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…

Power Train · received Sep 2, 2026 · NHTSA complaint 11761543

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

Power Train · received Aug 25, 2026 · NHTSA complaint 11759595

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

Structure · received Jun 22, 2026 · NHTSA complaint 11745739

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…

Engine · received May 22, 2026 · NHTSA complaint 11739507

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…

Power Train · received Feb 16, 2026 · NHTSA complaint 11718210

Other Mercedes-Benz GLS450 years

← 2018 GLS450 · 2020 GLS450 →

YearComplaintsRecalls
2021 GLS4503012
2020 GLS4503622
2019243
2018 GLS450143
2017 GLS450358
2016 GLS45001

See all Mercedes-Benz GLS450 problems by year, every Mercedes-Benz model, or the Mercedes-Benz VIN decoder.

Similar Mercedes-Benz models

Embed this 2019 Mercedes-Benz GLS450 badge on your site

Copy this code into your blog or forum post. It shows live complaint and recall counts and links back here.

Frequently asked questions

What are the most common problems with the 2019 Mercedes-Benz GLS450?

Owners most often report unknown or other, electrical system, engine problems. The top one, unknown or other, accounts for 6 complaints.

Was there a recall on the 2019 Mercedes-Benz GLS450?

Yes, 3 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2019 Mercedes-Benz GLS450 a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other GLS450 model years, the 2019 has fewer complaints than most years. Always get a pre-purchase inspection and check the VIN for open recalls.