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#BS-2019-MERGLS-6ED8

2019 Mercedes-Benz GLS 450Problems, Recalls & Reliability

Based on reports from 32 owners and 3 recalls for this exact model.

Data updated ·checked October 21, 2026 · NHTSA complaints through October 19, 2026

Complaints
32
Crashes
2
Fires
1
Recalls
3
TSBs
147
🟢

Preliminary Verdict

Proceed with Caution

Based on 32 complaints, 2 crashes, 1 fires, and 3 recalls.

See full verdict with buy/skip conditions

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Mechanic Inspection Checklist

!Check the EngineHIGH

6 owners reported engine issues — failures commonly reported around 15K miles.

!Inspect the DrivetrainMED
Look for symptoms of wear and premature failure
+ 6 more items in full checklistUnlock

Failure Timeline by Mileage

6
0–30K
4
30–60K
60–90K
1
90–120K
120–150K
150K+

Peak failure range: 0–30K miles (6 reports) • Median: 15K miles

Full report: which components fail at each mileageUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Engine (6 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Other6 (19%)
Engine6 (19%)
Drivetrain3 (9%)
Airbags2 (6%)
Back Over Prevention: Warnings2 (6%)
Electrical2 (6%)
Brakes2 (6%)
Suspension2 (6%)

2019 Mercedes-Benz GLS 450: Known Issues & Problem Areas

Engine Issues

Engine complaints account for 19% of all reports filed for the 2019 Mercedes-Benz GLS 450, with 6 owners filing complaints with NHTSA. The median mileage at time of complaint is 15,000 miles, suggesting issues tend to surface around the 15K-mile mark.

Drivetrain Issues

Drivetrain complaints account for 9% of all reports filed for the 2019 Mercedes-Benz GLS 450, with 3 owners filing complaints with NHTSA. Owners should pay attention to drivetrain-related symptoms during test drives and pre-purchase inspections.

Airbags Issues

Airbags complaints account for 6% of all reports filed for the 2019 Mercedes-Benz GLS 450, with 2 owners filing complaints with NHTSA. Owners should pay attention to airbags-related symptoms during test drives and pre-purchase inspections.

Back Over Prevention: Warnings Issues

Back Over Prevention: Warnings complaints account for 6% of all reports filed for the 2019 Mercedes-Benz GLS 450, with 2 owners filing complaints with NHTSA. Owners should pay attention to back over prevention: warnings-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Complaint trend by year

3
19
3
20
2
21
5
22
7
23
5
24
2
25
5
26

Complaints filed with NHTSA by year for the 2019 Mercedes-Benz GLS 450. Recent trend: increasing.

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Recall History (3 recalls)

21V058000Mar 2021

COMMUNICATION: AUTO CRASH NOTIFICATION

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.

22V365000Jul 2022

COMMUNICATION: AUTO CRASH NOTIFICATION

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.

24V207000May 2024

ELECTRICAL SYSTEM:WIRING

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.

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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The worst model year for the Mercedes-Benz GLS 450 is the 2024 — worth knowing if you're cross-shopping years. The biggest problem area is brakes.

About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 32 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 3 recalls found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Last updated (checked October 21, 2026). NHTSA complaints received through October 19, 2026.

Other Mercedes-Benz GLS 450 Model Years

202120202019201820172016
View all Mercedes-Benz GLS 450 years →

2019 Mercedes-Benz GLS 450: Frequently Asked Questions

What is the most common problem with the 2019 Mercedes-Benz GLS 450?
The most commonly reported issue with the 2019 Mercedes-Benz GLS 450 is related to the engine, with 6 complaints filed with NHTSA.
Is the 2019 Mercedes-Benz GLS 450 reliable?
The 2019 Mercedes-Benz GLS 450 has 32 complaints, 2 crash reports, and 1 fire reports filed with NHTSA. The full report analyzes whether these numbers indicate real risk or are proportional to the vehicle’s popularity.
How much does it cost to fix 2019 Mercedes-Benz GLS 450 problems?
Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.
Does the 2019 Mercedes-Benz GLS 450 have any recalls?
Yes, the 2019 Mercedes-Benz GLS 450 has 3 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.
What mileage do Mercedes-Benz GLS 450 problems start?
Based on 11 complaints with mileage data, the median mileage at time of complaint is 15,000 miles. The highest concentration of reported issues occurs in the 0–30K mile range. The full report breaks down exactly which components fail at each mileage bracket.
When was the 2019 Mercedes-Benz GLS 450 data last updated?
BumperScan last checked this vehicle against NHTSA on October 21, 2026, covering owner complaints received through October 19, 2026 plus the latest recalls, investigations and technical service bulletins. Its numbers last changed on October 13, 2026.
What’s in the full report?
10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.
How is this different from free NHTSA data?
NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.
How is this different from Carfax?
Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.
What if the report isn’t useful?
100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.
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10 sections of AI analysis based on 32 owner reports. Know before you buy.

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