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Mercedes-Benz

2019 Mercedes-Benz GLS 450

Problems, Recalls & Reliability Report

Average

Quick Summary

The 2019 Mercedes-Benz GLS 450 has 23 owner complaints filed with NHTSA — that's 1.0x the segment average of 23. The most common issue is other problems (22% of all complaints), specifically: backup safety alert system design is inadequate. exterior sensors are insensitive or erratic, warning buzzer is faint-to-inaudible, especially if there is other ambient noise such as radio playing, and warning buzzer sound level is not adjustable. warning lights that are coupled to the audible aler. There are 2 recalls issued for this model year. ⚠️ 1 fire report filed.

1 fire report

23

Total Complaints

2

Recalls Issued

/5

Safety Stars

1.0x

vs Segment Avg

Known Problems(top 5 of 8)

OTHER

5 complaints
22%
  • BACKUP SAFETY ALERT SYSTEM DESIGN IS INADEQUATE. EXTERIOR SENSORS ARE INSENSITIVE OR ERRATIC, WARNING BUZZER IS FAINT-TO-INAUDIBLE, ESPECIALLY IF THERE IS OTHER AMBIENT NOISE SUCH AS RADIO PLAYING, AND WARNING BUZZER SOUND LEVEL IS NOT ADJUSTABLE. WARNING LIGHTS THAT ARE COUPLED TO THE AUDIBLE ALER
  • factory equiped jack lift failed, bearing and ring ejected and vehicle fall on the ground, contacted manufactory, and Mercedes indicated they probably can replace a new jack but no more action they will take, the vehicle has a gross weight about 6400lbs, and with air suspension, the vehicle will nee
  • Update Communication Module SIM Card Software - MBUSA ID: [XXX], NHTSA Recall ID: 22V365. I received the recall letter from MBUSA in July 2022. I took my car to a local dealership on 8 Aug 22 and they told me after approximately two hours they couldn't update/do OTA. They told me I would need to
Typical onset: 50K miles Est. repair: $500

BACKUP SAFETY ALERT SYSTEM DESIGN IS INADEQUATE. EXTERIOR SENSORS ARE INSENSITIVE OR ERRATIC, WARNING BUZZER IS FAINT-TO-INAUDIBLE, ESPECIALLY IF THERE IS OTHER AMBIENT NOISE SUCH AS RADIO PLAYING, AND WARNING BUZZER SOUND LEVEL IS NOT ADJUSTABLE. WARNING LIGHTS THAT ARE COUPLED TO THE AUDIBLE ALER

— NHTSA complaint filing

Recalls (2)

ELECTRICAL SYSTEM:SOFTWARE20/05/2022

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.

Estimated Insurance Cost for 2019 Mercedes-Benz GLS 450

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.
Full coverage / year
$2,143
Full coverage / month
$179
Liability only / year
$710
vs US avg
+28%
How this estimate is calculated
US base full-coverage premium$1674
× state (US)1.00x
× vehicle class (sedan-luxury)1.28x
× theft risk1.00x
× safety rating1.00x
× vehicle age1.00x
= Full coverage estimate$2143

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Mercedes-Benz GLS 450 Service Intervals

Oil change
10K mi / 12 mo
Tire rotation
10K mi
Brake fluid
24 months
Transmission fluid
40K mi
Engine coolant
150K mi
Spark plugs
60K mi
Cabin air filter
20K mi
Engine air filter
40K mi
Differential (AWD/4WD)
40K mi

Service A / Service B alternating schedule. Requires MB-approved oil (229.5 spec typically).

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Mercedes-Benz New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)
4 yr / 50K mi
Powertrain
4 yr / 50K mi
Hybrid/EV battery
10 yr / 155K mi
Corrosion (rust perforation)
4 yr / 50K mi
Roadside assistance
4 yr / unlimited mi

EQ EV battery warranty is 10 years/155,000 miles

These are the terms for a new Mercedes-Benz. If you're buying a used 2019 GLS 450, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Mercedes-Benz dealer for VIN-specific remaining warranty.

Estimated Repair Costs

OTHER(~50K mi)
$500
ENGINE(~50K mi)
$500
DRIVER ASSIST/CAMERAS(~50K mi)
$500
BODY/STRUCTURE(~50K mi)
$500
ELECTRICAL(~50K mi)
$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 23 owner complaints for this specific year, here's what to check or ask about:

  • OTHER: BACKUP SAFETY ALERT SYSTEM DESIGN IS INADEQUATE. EXTERIOR SENSORS ARE INSENSITIVE OR ERRATIC, WARNING BUZZER IS FAINT-TO-INAUDIBLE, ESPECIALLY IF THERE IS OTHER AMBIENT NOISE SUCH AS RADIO PLAYING, AND WARNING BUZZER SOUND LEVEL IS NOT ADJUSTABLE. WARNING LIGHTS THAT ARE COUPLED TO THE AUDIBLE ALER

    Typically appears around 50K miles. Repair cost ~$500

  • ENGINE: The contact's client owns a 2019 Mercedes Ben GLS450. The contact stated that while the owner was driving at an undetermined speed, the vehicle began to smoke and caught fire. There were no warning indicator lights illuminated. There were no injuries or air bag deployment. A police report was file

    Typically appears around 50K miles. Repair cost ~$500

  • DRIVER ASSIST/CAMERAS: Update Communication Module SIM Card Software - MBUSA ID: [XXX], NHTSA Recall ID: 22V365. I received the recall letter from MBUSA in July 2022. I took my car to a local dealership on 8 Aug 22 and they told me after approximately two hours they couldn't update/do OTA. They told me I would need to

    Typically appears around 50K miles. Repair cost ~$500

  • BODY/STRUCTURE: Vehicle was damaged by a school bus hitting the rear passenger corner. It damaged the rear tail light, brake light, turn signal and backup warning sensors. Parts to repair the vehicle are not available for the past 4 months. I called multiple times and the dealer cannot provide a date when the par

    Typically appears around 50K miles. Repair cost ~$500

  • RECALLS: Verify all 2 recalls have been completed — free at any Mercedes-Benz dealer
  • General: Get a pre-purchase inspection from an independent mechanic ($100-$200)

Mercedes-Benz GLS 450 — Year Comparison

How does 2019 compare to other years? Fewer complaints = more reliable.

Full years-to-avoid analysis →

NHTSA Safety Rating

No NHTSA safety rating available

At a Glance

Complaints
23
Recalls
2
Fire reports
1
Crash reports
0
Injury reports
0
Segment avg
23

Check a Specific VIN

See recalls for YOUR 2019 Mercedes-Benz GLS 450