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
- 1
- Recalls
- 2
- Investigations
- 0
- Top problem
- —
Too few to rank
Campaigns on file for 2020
None on file
Not enough data
Complaints per year
2020: 1 complaint
View as data table
| Year | Complaints |
|---|---|
| 2016 | 0 |
| 2017 | 35 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 31 |
Known problem areas
Only 1 complaint on file for this model year — too few to rank by share. Raw counts only, below.
Fuel/propulsion system
1 of 1 total report mentions: fuel/propulsion system.
Show 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, 2020-01-15
Safety timeline
2 recalls · 0 investigations · oldest first
To check one car, enter its VIN on the NHTSA recall page. Check a VIN →
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2019-11-08Structure19V709000 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.
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2020-03-31Electrical system20V089000 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.
Buy-smart checklist
2020 Mercedes-Benz GLS450 — pre-purchase inspection
Inspect
- Fuel/propulsion system: 1 report on file for this year.
Verify these recalls were completed
- Recall 19V709000 · Structure
- Recall 20V089000 · Electrical system
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 2026-11-01 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.