Is the 2023 Mercedes-Benz GLS 450 reliable?

There isn't enough NHTSA complaint data on file yet to give this model year a verdict.

What are the most common problems with the 2023 Mercedes-Benz GLS 450?

The most-reported component is service brakes, accounting for 57% of complaints on file.

How many recalls does the 2023 Mercedes-Benz GLS 450 have?

5 recalls on file for this model year.

2023 Mercedes-Benz GLS 450

○ Not enough data

2023 Mercedes-Benz GLS 450
RENDERED 2026-11-01T14:03:28.115Z

Only 7 complaints on file — too few for a fair verdict.

This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.

Only 7 complaints on file — too few for a fair verdict. The data below is complete but unranked.

How is this computed?

Complaints: 7
Recalls: 5
Investigations: 0
Top problem: —

Complaints per year

2023: 7 complaints

View as data table

Year	Complaints
2018	14
2019	20
2020	35
2022	14
2023	7
2024	14

Known problem areas

Only 7 complaints on file for this model year — too few to rank by share. Raw counts only, below.

Service brakes

4 of 7 total reports mention: service brakes.

Show complaint excerpts

This is [XXX], a Mercedes customer who purchased a brand new 2023 GLS 450 (VIN:[XXX] ) in April 2023 from the Mercedes dealer in White Plains NY. I am contacting you about the Mercedes rusting claim.

NHTSA ODI report, 2023-05-25

Also filed under Wheels

Engine

3 of 7 total reports mention: engine.

Show complaint excerpts

Twice the vehicle has stalled while driving. I see that there is a recall on my model for a faulty fuel pump which causes this problem, but my dealer claims my vehicle is not part of the recall even though it is having the same issue.

NHTSA ODI report, 2023-10-04

Also filed under Fuel/propulsion system

Forward collision avoidance

3 of 7 total reports mention: forward collision avoidance, most commonly citing automatic emergency braking and adaptive cruise control.

Wheels

1 of 7 total reports mentions: wheels.

Lane departure

1 of 7 total reports mentions: lane departure, most commonly citing assist.

Safety timeline

5 recalls · 0 investigations · oldest first

To check one car, enter its VIN on the NHTSA recall page. Check a VIN →

R

2023-05-05Structure23V178000 Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 GLE350, GLE450, GLE580, GLS450, GLS580, Maybach GLS600, AMG GLE53, AMG GLE63 S, and AMG GLS63 vehicles. The rear door window trim bars may detach from the vehicle while driving.

Remedy: Dealers will inspect and secure the rear window trim bars, as necessary, free of charge. Owner notification letters were mailed May 5, 2023. Owners may contact MBUSA customer service at 1-800-367-6372.

Check if this car was fixed →
R

2023-09-29Fuel system, gasoline23V445000 Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 C-Class, E-Class, S-Class, CLS, SL, GT, GLC, GLE, GLS, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details.

Remedy: Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed on June 14, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2023070012.

Check if this car was fixed →
R

2024-02-23Fuel system, gasoline23V880000 Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2024 GLE, GLS, C-Class, E-Class, S-Class, SL, GLC, CLS, AMG GT, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details.

Remedy: Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed on June 28, 2024.

Check if this car was fixed →
R

2024-03-29Power train24V118000 Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2023 GLE 450 and GLS 450 vehicles. The transmission may not fully downshift in certain conditions, causing the engine to stall.

Remedy: Dealers will update the transmission control unit software, free of charge. Owner notification letters were mailed March 29, 2024. Owners may contact MBUSA customer service at 1-800-367-6372.

Check if this car was fixed →
R

2024-05-03Electrical system24V207000 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.

Remedy: 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.

Check if this car was fixed →

Buy-smart checklist

2023 Mercedes-Benz GLS 450 — pre-purchase inspection

Inspect

Service brakes: 4 reports on file for this year.
Engine: 3 reports on file for this year.
Forward collision avoidance: 3 reports on file for this year.

Verify these recalls were completed

Recall 23V178000 · Structure
Recall 23V445000 · Fuel system, gasoline
Recall 23V880000 · Fuel system, gasoline
Recall 24V118000 · Power train
Recall 24V207000 · Electrical system

FAQ

Is the 2023 Mercedes-Benz GLS 450 reliable?: There isn't enough NHTSA complaint data on file yet to give this model year a verdict.
What are the most common problems with the 2023 Mercedes-Benz GLS 450?: The most-reported component is service brakes, accounting for 57% of complaints on file.
How many recalls does the 2023 Mercedes-Benz GLS 450 have?: 5 recalls on file for this model year.

Data updated 2026-11-01 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.