2020 Mercedes-Benz GLS450
Only 1 complaint 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 1 complaint on file — too few for a fair verdict. The data below is complete but unranked.
COMPLAINTS PER YEAR
View as data table
| Year | Complaints |
|---|---|
| 2016 | 0 |
| 2017 | 34 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 30 |
KNOWN PROBLEM AREAS
Only 1 complaint on file for this model year -- too few to rank by share. Raw counts only, below.
1 of 1 total report mentions: fuel/propulsion system.
INJURYShow complaint excerpts
TL* THE CONTACT OWNS A 2020 MERCEDES-BENZ GLS450. THE CONTACT STATED SHE NOTICED A FUEL ODOR COMING FROM THE VEHICLE WHEN THE WINDOWS WERE OPEN. THE CONTACT SOUGHT MEDICAL ATTENTION DUE TO BREATHING PROBLEMS.
NHTSA ODI report, 20200115
SAFETY TIMELINE
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE350, GLE350 4MATIC, GLE450 4MATIC, GLS450 4MATIC, and GLS580 4MATIC vehicles. The rear door window trim may detach.
Remedy: MBUSA will notify owners, and dealers will inspect and fasten the rear door window trim, as necessary, free of charge. The recall began November 8, 2019. Owners may contact MBUSA customer service at 1-800-367-6372.
Campaign 19V709000 — check if this car was fixed
Mercedes-Benz USA, LLC.
Remedy: MBUSA will notify owners, and dealers will update the instrument cluster software, free of charge. The recall began March 31, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020030019.
Campaign 20V089000 — check if this car was fixed
BUY-SMART CHECKLIST
2020 Mercedes-Benz GLS450 — pre-purchase inspection
- Test/inspect for fuel/propulsion system issues (1 reports on file for this year).
- Verify recall 19V709000 (structure) has been completed.
- Verify recall 20V089000 (electrical system) has been completed.
FAQ
Is the 2020 Mercedes-Benz GLS450 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 2020 Mercedes-Benz GLS450?
The most-reported component is fuel/propulsion system, accounting for 100% of complaints on file.
How many recalls does the 2020 Mercedes-Benz GLS450 have?
2 recalls on file for this model year.
Data updated 2026-07-11 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.