2018 Mercedes-Benz GLS 450 Recalls, Complaints & Specs
3 safety recalls list the 2018 Mercedes-Benz GLS 450, and owners have filed 14 complaints with NHTSA. Check your own VIN below.
3 safety recalls for the 2018 Mercedes-Benz GLS 450
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
-
Auto crash notification (communication) and software (electrical system)
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…
Remedy: 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…
-
Software (electrical system) and auto crash notification (communication)
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…
Remedy: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer…
-
Service brakes, hydraulic
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 Mercedes-Benz GLE350 4Matic, GLE350, GLS450 4Matic, GLS550 4matic, GLE43 AMG 4Matic, GLE63 AMG 4Matic, GLE63S AMG 4Matic, and GLS63 AMG 4Matic vehicles. The rear brake caliper pistons on these vehicles may not have been correctly coated, causing gas to become temporarily released…
Remedy: MBUSA will notify owners, and dealers will bleed the rear axle brake system, free of charge. The recall began September 14, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this…
14 owner complaints filed with NHTSA
Owners of the 2018 Mercedes-Benz GLS 450 have filed 14 complaints with NHTSA; 1 describe a crash and 3 describe a fire. The average mileage at failure in those reports is 8,843 miles. Complaints peaked in 2018 with 4 filed that year.
Most-reported components
What owners are reporting
“January 2023 - Airbag suspension failed. Replaced by Mercedes dealership. December 2024 - Airbag suspension failed. Replaced by Mercedes dealership. April 2024: First brake failure. The brakes stopped”
Owner complaint to NHTSA, December 5, 2025 · Engine
“Brake brakes are terrible. They have other years that they’ve acknowledge that the break are spongy and at times does not break the GLS has that defect. Also smell of gas fumes inside the vehicle. Ple”
Owner complaint to NHTSA, August 26, 2025 · Service brakes
Compare Mercedes-Benz GLS 450 model years
Recall and complaint counts for every Mercedes-Benz GLS 450 model year in NHTSA's database.
| Model year | Recalls | Complaints |
|---|---|---|
| 2018 Mercedes-Benz GLS 450 | 3 | 14 |
| 2019 Mercedes-Benz GLS 450 | 2 | 20 |
| 2020 Mercedes-Benz GLS 450 | 20 | 35 |
Checking a specific 2018 Mercedes-Benz GLS 450
How do I know if my 2018 Mercedes-Benz GLS 450 has an open recall?
Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 3 campaigns currently list the 2018 Mercedes-Benz GLS 450; your car may already have been repaired under some of them.
Is the recall repair free?
Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised Mercedes-Benz dealer with your VIN and the NHTSA campaign number (for example 18V539000).
What is the difference between a recall and a complaint?
A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.
Other Mercedes-Benz models
- C3003,469 complaints
- E3502,170 complaints
- E3201,164 complaints
- ML350952 complaints
- GLK350904 complaints
- ML320742 complaints
- C250726 complaints
- C230657 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.