2020 Mercedes-Benz Amg GLC63: Recalls, Problems & MPG
Here are the deets on the 2020 Mercedes-Benz Amg GLC63: 10 recalls, 2 owner complaints and up to 18 mpg combined.

Recalls
10 vehicle recalls from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
Communication Vehicle recall #20V068000 · 2020 · 239 vehicles
What's wrong: Mercedes-benz USA, LLC. (mbusa) is recalling certain 2020 c300 cabrio, c300 cabrio 4matic, c300 coupe, c43 amg cabrio 4matic, c43 amg coupe 4matic, c63s amg cabrio, cls53 amg 4matic, e350, e350 4matic, e450 cabrio, e450 cabrio 4matic, e450 coupe, e450 coupe 4matic, e450 4matic, e53 amg cabrio 4matic, glc300 coupe 4matic, glc300, glc300 4matic, glc63 amg coupe 4matic, amg gt63 4-door 4matic, and amg gt63s 4-door…
Why it matters: An inaccurate vehicle location May delay emergency responders, increasing the risk of injury.
The fix: Mbusa will notify owners, and dealers will replace the communication module, free of charge. The recall began April 14, 2020.
Seats Vehicle recall #20V328000 · 2020 · 1,352 vehicles
What's wrong: Mercedes-benz USA, LLC. (mbusa) is recalling certain 2020 e450, amg e63s, glc300, amg glc43, amg glc63, amg gt53, and amg gt63 vehicles equipped with rear seatbacks that can be electrically unlatched. The left-rear seatback latch May not be strong enough to withstand certain loads. If cargo were to strike the left-rear seatback, the latch May fail.
Why it matters: In the event of a crash, if the left-rear seatback latch fails, it can increase the risk of injury.
The fix: Mbusa will notify owners, and dealers will replace the left-rear seatback latch, free of charge. The recall began August 17, 2020.
Stability control, Electrical Vehicle recall #20V395000 · 2020 · 5,399 vehicles
What's wrong: Mercedes-benz USA, LLC. (mbusa) is recalling certain 2019-2020 c63 amg, c63 amg s, amg gt 53, amg gt 63, amg gt 63 s, and 2020 glc 63 amg, glc 63 amg s vehicles. An incorrect electronic stability program (esp) software version May cause the esp system to react inaccurately. On December 18, 2020, an additional 360 vehicles were added to the recall population.
Why it matters: If the esp does not react properly to a driving situation, it May increase the risk of a crash.
The fix: Mbusa will notify owners, and dealers will update the esp software, free of charge. The recall began August 28, 2020. Letters for the owners of the 360 additional vehicles were mailed January 15, 2021.
Steering Vehicle recall #20V651000 · 2020 · 2,533 vehicles
What's wrong: Mercedes-benz USA, LLC. (mbusa) is recalling certain 2020 glc300, glc350e, glc43 amg, and glc63 amg vehicles. The power steering control unit wiring harness May have been damaged during the production process, possibly resulting in a loss of power steering assist or an electrical short-circuit.
Why it matters: A loss of power steering assist can increase the risk of a crash. Additionally, if the wiring harness short-circuits, there is an increased risk of a fire.
The fix: Mbusa will notify owners, and dealers will inspect the wiring harness, and replace it if necessary, free of charge. The recall began December 11, 2020.
Electrical Vehicle recall #20V776000 · 2020 · 2,563 vehicles
What's wrong: The power supply cable on the starter might not have been installed correctly, possibly allowing the cable to chafe against the starter housing and short-circuit.
Why it matters: If the power supply cable short-circuits, it can result in a stall, increasing the risk of a crash. In addition, a short-circuit can increase the risk of a fire.
The fix: Mbusa will notify owners, and dealers will inspect the starter harness and power supply cable installation, and correct it as necessary, free of charge. The recall began March 18, 2021.
Communication, Electrical Vehicle recall #21V058000 · 2021 · 1,292,258 vehicles
What's wrong: 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.
Why it matters: Failure of the ecall system May result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
The 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.
Backup camera, Electrical Vehicle recall #21V354000 · 2021 · 343,191 vehicles
What's wrong: Please refer to mbusa's recall report for specific vehicle model details. The mbux multimedia system software May cause the display to remain black, or reboot after startup. This could result in the rearview camera image not displaying properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (fmvss) number 111, "rear visibility."
Why it matters: A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.
The fix: The multimedia system software will be updated by a dealer, or through an over-the-air (ota) update, free of charge. Owner notification letters were mailed beginning June 28, 2021.
Airbags Vehicle recall #21V527000 · 2021 · 542 vehicles
What's wrong: The side crash sensor connectors May come loose, which could delay the activation of air bags and seatbelts during a side impact crash.
Why it matters: Air bags and seatbelts that don't function as intended can increase the risk of injury during a crash.
The fix: Dealers will inspect and replace as necessary, the side impact crash sensors, free of charge. Owner notification letters were mailed on September 3, 2021.
Backup camera Vehicle recall #22V232000 · 2022 · 126,443 vehicles
What's wrong: Please refer to mbusa's recall report for specific vehicle model details. The rearview camera May not display the rearview image due to a software error. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "rear visibility."
Why it matters: An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.
The fix: Dealers will update the rearview camera software, free of charge. Owner notification letters were mailed July 15, 2022.
Communication, Electrical Vehicle recall #22V365000 · 2022 · 242,722 vehicles
What's wrong: 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.
Why it matters: 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.
The 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.
Most-reported problems
Owner complaints filed with NHTSA, by component. One complaint can list several components. 0 mention a fire, 0 injuries and 0 deaths were reported.
What owners describe
- Electrical (1): no single recurring theme in the descriptions.
- Transmission & drivetrain (1): no single recurring theme in the descriptions.
The 2020 Mercedes-Benz Amg GLC63 has 2 owner complaints, ranking #2 of 4 Amg GLC63 model years for complaints (about average; the typical year has 2). Neighboring years: 2019 (3 complaints, 8 recalls), 2021 (2 complaints, 6 recalls).
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 4.0 L 8-cyl turbo | Automatic 9-spd | 4-Wheel Drive | 16 | 22 | 18 | Premium |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2020 Mercedes-Benz Amg GLC63.
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FAQ
Does the 2020 Mercedes-Benz Amg GLC63 have any recalls?
Yes. NHTSA lists 10 vehicle recalls for the 2020 Mercedes-Benz Amg GLC63. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What are the most common 2020 Mercedes-Benz Amg GLC63 problems?
Owners have filed 2 complaints with NHTSA. The most-reported areas are electrical (1), transmission & drivetrain (1).
What gas mileage does the 2020 Mercedes-Benz Amg GLC63 get?
EPA ratings run up to 18 mpg combined (4.0 L, Automatic 9-spd), across 1 engine and transmission combos.
Where can I get a 2020 Mercedes-Benz Amg GLC63 repair manual?
eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.