Most common 2020 Mercedes-Benz G550 problems
Share of the 2 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mercedes-Benz G550 complaints by model year
Best G550 years: 2015, 2017, 2023. Compare all years →
2020 Mercedes-Benz G550 recalls (8)
Latches/locks/linkages › Doors › Lock
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2023 G 550 and 2019-2022 G63 AMG vehicles that received a replacement door latch during a service visit or prior recall repair. Components within the right-side rear door latch may prevent the rear doors from latching or opening properly.
Remedy: Dealers will replace the right-side rear door latches, free of charge. Owner notification letters were mailed October 11, 2024. Owners may contact MBUSA customer service at 1-800-367-6372.
Electrical system › Wiring
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 G550 and AMG G63 vehicles. The front axle wiring harness may chafe against an oil cooler and become damaged, which can cause a loss of anti-lock brakes (ABS) and electronic stability control (ESC).
Remedy: Dealers will inspect and either install a protective sleeve or replace the front axle wiring harness, as necessary, free of charge. Owner notification letters were mailed April 10, 2023.
Communication › Auto crash notification
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.
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.
Air bags › Sensor › Side impact
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 CLS450, AMG E53, AMG CLS53, E350, E450, AMG GT43, AMG GT53, 2020 S450, S560, G550, AMG GLC63, 2020-2021 GLC300, and AMG G63 vehicles. The side crash sensor connectors may come loose, which could delay the activation of air bags and seatbelts during a side impact crash.
Remedy: Dealers will inspect and replace as necessary, the side impact crash sensors, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
Latches/locks/linkages › Doors › Latch
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 G550 and G63 AMG vehicles. Components within the door latch may prevent the rear doors from latching or opening properly.
Remedy: Dealers will replace the rear door latches, free of charge. Owner notification letters were mailed July 9, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
Communication › Auto crash notification
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.
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.
Show 2 more recalls
Latches/locks/linkages
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2019-2020 G550 and G63 vehicles. The embossed lock symbol for the child safety lock on the rear doors may indicate the incorrect lock status of the child safety lock.
Remedy: MBUSA will notify owners, and dealers will install a label on the rear doors with the correct operating direction, free of charge. The recall began June 26, 2020.
Electronic stability control (ESC)
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2019-2020 G550 4MATIC and G63 AMG 4MATIC vehicles. An electrical resistor within the differential locking module may malfunction, interrupting communication between the control unit and the differential locking actuator, possibly resulting in the deactivation of the…
Remedy: MBUSA will notify owners, and dealers will inspect the differential locking modules and replace them as necessary, free of charge. The recall began August 21, 2020.
2020 Mercedes-Benz G550 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 4.0L 8-cyl turbo | 9-speed automatic | 4WD | 13 / 17 / 14 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2020 Mercedes-Benz G550 a good car?
Based on 2 owner complaints filed with NHTSA, the 2020 G550 rates few complaints: 2.0× as many complaints as a typical year of the G550 at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2020 Mercedes-Benz G550?
The engine & cooling — 1 complaint, 50% of all complaints for this model year.
How many recalls does the 2020 Mercedes-Benz G550 have?
There are 8 recalls for the 2020 Mercedes-Benz G550, the most recent from September 9, 2024 (lock). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Mercedes-Benz G550?
The best years by complaints, compared at the same age, are 2015, 2017 and 2023. See the full Mercedes-Benz G550 years comparison.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.