2020 Mercedes-Benz AMG GLC43 problems, complaints & recalls

Updated from NHTSA data · How we count

Owners have filed 5 complaints with NHTSA about the 2020 Mercedes-Benz AMG GLC43, most often about engine. There are 7 recalls for this model year.

Complaints
5
Recalls
7
Crashes
0
Fires
0
Injuries
0
Median mileage
15,400 mi
at time of problem

Key facts

  • Engine is the most-reported problem area, named in 3 of 5 complaints (60%).
  • Electrical System (2) and driver assistance & safety tech (1) follow.
  • Half of the complaints that list mileage happened before 15,400 mi.
  • The 2020 Mercedes-Benz AMG GLC43 has 7 recalls on file.
  • It ranks 5th of 8 Mercedes-Benz AMG GLC43 model years by our severity-weighted complaint score (1st = worst).

2020 Mercedes-Benz AMG GLC43 problems by category

  • Engine
    3 complaints
  • Electrical System
    2 complaints
  • Driver Assistance & Safety Tech
    1 complaints
  • Acceleration & Cruise Control
    1 complaints
  • Brakes
    1 complaints
  • Other / Unknown
    1 complaints

A complaint can mention more than one problem area, so categories add up to more than the total.

Most-reported components

Component (as filed with NHTSA)Complaints
Engine3
Electrical system2
Back over prevention1
Service brakes1
Unknown or other1
Vehicle speed control:throttle1

When problems happen (mileage)

1Under 10k10k–30k130k–60k60k–100k100k–150k150k+
Mileage at the time of the problem, for 2020 Mercedes-Benz AMG GLC43 complaints that list mileage.

2020 Mercedes-Benz AMG GLC43 recalls (7)

  • Recall 24V070000Feb 2, 202415,502 vehicles
    EXTERIOR LIGHTING:HEADLIGHTS

    Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2022 GLC 300, 2020 GLC 350e, and 2020-2022 AMG GLC 43 vehicles. The headlights may be incorrectly adjusted too high and create a glare for oncoming traffic. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

    Risk: Incorrectly aimed headlights can reduce the visibility of oncoming traffic, increasing the risk of a crash.

    Remedy: Dealers will inspect the headlight adjustment and correct it if necessary, free of charge. Owner notification letters were mailed February 23, 2024. Owners may contact MBUSA customer service at 1-800-367-6372.

  • Recall 22V365000May 20, 2022242,722 vehicles
    COMMUNICATION: AUTO CRASH NOTIFICATION · ELECTRICAL SYSTEM:SOFTWARE

    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.

    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 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 22V232000Apr 8, 2022126,443 vehicles
    BACK OVER PREVENTION:DISPLAY FUNCTION

    Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018-2021 CLA-Class, GLE/GLS-Class, A-Class, C-Class, E-Class, E-Class Coupe/Convertible, GLA/GLB-Class, GLC-Class, and CLS-Class vehicles. 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."

    Risk: An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.

    Remedy: Dealers will update the rearview camera software, free of charge. Owner notification letters were mailed July 15, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022060007.

  • Recall 21V354000May 14, 2021343,191 vehicles
    BACK OVER PREVENTION: SENSING SYSTEM: CAMERA · ELECTRICAL SYSTEM:SOFTWARE

    Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 CLA-Class, GLE/GLS-Class, A-Class, E-Class, E-Class Coupe and Convertible, GLA/GLB-Class, GLC-Class, CLS-Class, and AMG GT-Class 4-door Coupe vehicles. 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."

    Risk: A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.

    Remedy: 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. Owners may contact MBUSA customer service at 1-800-367-6373. MBUSA's number for this recall is 2021050012.

  • Recall 21V058000Feb 5, 20211,292,258 vehicles
    COMMUNICATION: AUTO CRASH NOTIFICATION · ELECTRICAL SYSTEM:SOFTWARE

    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.

    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 at 1-877-762-8267. MBUSA's number for this recall is 2021020025.

  • Recall 20V651000Oct 23, 20202,533 vehicles
    STEERING:ELECTRIC POWER ASSIST SYSTEM

    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.

    Risk: 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.

    Remedy: 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. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020110012.

  • Recall 20V328000Jun 5, 20201,352 vehicles
    SEATS:MID/REAR ASSEMBLY

    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.

    Risk: In the event of a crash, if the left-rear seatback latch fails, it can increase the risk of injury.

    Remedy: MBUSA will notify owners, and dealers will replace the left-rear seatback latch, free of charge. The recall began August 17, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020070004.

Recent 2020 Mercedes-Benz AMG GLC43 complaints

Excerpts of the newest owner complaints, lightly cleaned of personal details. Complaints are unverified owner reports.

  1. Filed Dec 14, 2023NJBrakesEngineOther / Unknown
    2020 AMG GLC 43 coupe here in Harrison, NJ. My driving style with this vehicle isn't different in any relevant way versus with past vehicles. There is an acceleration dead spot which is the default occurrence when I am coasting at a low speed and then go to accelerate. Common scenarios are driving toward an intersection and rolling forward as you determine if you are clear to go and then accelerating, or slowing down to let a car in the lane next to you go by so you can then…
    NHTSA complaint #11560051 · source
  2. Filed Aug 11, 2022800 miCAAcceleration & Cruise Control
    The contact owns a 2020 Mercedes-Benz GLC43. The contact stated that while driving at an undisclosed speed, the vehicle hesitated to accelerate after coming to a complete stop while the steering wheel was turned. The vehicle was taken to the dealer where it was diagnosed that the electronic throttle control (ETC) software needed to be replaced; however, the dealer was unable to replace the ETC software and referred the contact to the manufacturer for further assistance. The…
    NHTSA complaint #11478857 · source
  3. Filed Jun 30, 202230,000 miMDDriver Assistance & Safety TechElectrical System
    The contact owns a 2020 Mercedes-Benz AMG GLC43. The contact received notification of NHTSA Campaign Number: 21V354000 (Back Over Prevention, Electrical System) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated while reversing, the rearview camera failed to operate as needed. There was no warning light…
    NHTSA complaint #11471894 · source
  4. Filed Mar 7, 2022NYEngine
    Sometimes after I hit the brake (hard or soft) but need to step on the gas again, the car pauses and does nothing for over a second, making it dangerous if you need to make a turn. Sometimes the car is confused whether to go fast or slow down so it does nothing and does not re-act to the driver pushing the pedal down. This situation can leave the driver in dangerous situations regarding on coming traffic
    NHTSA complaint #11455489 · source
  5. Filed Sep 21, 2021NCElectrical SystemEngine
    At around 11pm on Monday, Sept 20, 2021 I was driving approximately 65 mph on the highway when the vehicle began to abruptly decelerate for no apparent reason, even when I was pushing on the accelerator pedal. When I would push on the accelerator I could hear the engine revving, I confirmed the car was in the Drive gear but the vehicle began to lose speed rapidly and no matter what action I took the car was only slowing down and had to quickly find an emergency area to pull…
    NHTSA complaint #11433783 · source

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Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data, as of Oct 10, 2026. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology