2018 Mercedes-Benz GLS 450 recalls and problems
The 2018 Mercedes-Benz GLS 450 has 3 safety recalls and 14 owner complaints filed with NHTSA. Recall repairs are free at any Mercedes-Benz dealer.
Recalls may cover only some 2018 Mercedes-Benz GLS 450 vehicles. Check your VIN at NHTSA ↗ to see open recalls for your exact car.
2018 Mercedes-Benz GLS 450 recalls
Recall 22V-365: Communication, Electrical System
Problem: 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.
Recall 21V-058: Communication, Electrical System
Problem: 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 communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
Risk: Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Fix: 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 at 1-877-762-8267. MBUSA's number for this recall is 2021020025.
Recall 18V-539: Service Brakes, Hydraulic
Problem: 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 into the rear brake hydraulic circuit, reducing braking performance.
Risk: Reduced braking performance can increase the risk of a crash.
Fix: 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 recall is 2018080013.
2018 Mercedes-Benz GLS 450 problems reported by owners
| Problem area | Reports | |
|---|---|---|
| Suspension | 3 | |
| Service Brakes | 3 | |
| Electrical System | 2 | |
| Structure | 2 | |
| Engine | 2 | |
| Exterior Lighting | 1 | |
| Steering | 1 | |
| Power Train | 1 | |
| Electronic Stability Control (ESC) | 1 | |
| Unknown or Other | 1 | |
| Seats | 1 | |
| Fuel/Propulsion System | 1 |
Most reported parts
- Structure › Body — 2
- Electrical System › Wiring › Front Underhood — 1
- Forward Collision Avoidance › Automatic Emergency Braking — 1
Typical mileage at the time of the problem: 8,000 miles (median of owner reports).
Problems that are not covered by a recall are paid repairs; labor rates follow local mechanic pay — see what auto mechanics earn in each state.
Recent 2018 Mercedes-Benz GLS 450 complaints
Owner reports filed with NHTSA, as written (personal details removed). Complaints are not verified by NHTSA.
Other Mercedes-Benz GLS 450 years
Compare all Mercedes-Benz GLS 450 years · All Mercedes-Benz models
Frequently asked questions
Does the 2018 Mercedes-Benz GLS 450 have any recalls?
Yes — NHTSA lists 3 recalls for the 2018 Mercedes-Benz GLS 450: 22V-365 (communication, electrical system), 21V-058 (communication, electrical system), 18V-539 (service brakes, hydraulic). Not every vehicle is affected, so check your VIN at nhtsa.gov/recalls.
What is the most common problem with the 2018 Mercedes-Benz GLS 450?
Owners report suspension problems most often (3 reports), followed by service brakes (3). The typical mileage when problems were reported is about 8,000 miles.
Are Mercedes-Benz recall repairs free?
Yes. Safety recall repairs are free at authorized Mercedes-Benz dealers, whether you are the first owner or bought the car used.