2024 Mercedes-Benz Glc 300 4matic problems, complaints & recalls
Most-reported problem areas: Visibility:rearview Mirrors/Devices:exterior (1) · Structure:body:hatchback/Liftgate (1) · Structure:body (1)
🧭 Reliability snapshot
Compared against other Mercedes-Benz Glc 300 4matic model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (3)
Latches/Locks/Linkages:doors:lock 2026-07-24 · campaign 26V481000 · 310,667 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2021 CLA, 2019-2022 A-Class, 2022-2023 C-Class, 2024 CLE, 2020-2026 GLA/GLB, and 2023-2024 GLC vehicles. Please refer to MBUSA's recall report for specific model information. The micro-switch in the driver's door lock may corrode and fail to detect an open door, preventing the electronic parking brake or "Auto-Park" feature from engaging automatically. This may result in a vehicle rollaway.
Risk: A vehicle rollaway increases the risk of a crash or injury.
Fix: Dealers will replace the driver's door lock, free of charge. Owner notification letters are expected to be mailed September 18, 2026. This will be a phased campaign, with the remedy becoming available in different phases based on model and model years. Owners may contact MBUSA customer service at 1-800-367-6372. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning July 31, 2026.
Steering:critical Fasteners 2025-08-20 · campaign 25V533000 · 3,749 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2026 EQE and GLC vehicles. Please see the recall report for a complete list of models. The steering coupling bolt may have been improperly tightened, allowing the steering coupling to loosen from the steering rack.
Risk: A loose steering coupling can cause a loss of steering control, increasing the risk of a crash.
Fix: Dealers will tighten the steering coupling bolts as necessary, free of charge. Owner notification letters were mailed October 6, 2025. Owners may contact MBUSA customer service at 1-800-367-6372.
Structure:body:roof And Pillars 2025-06-06 · campaign 25V379000 · 92,851 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2025 GLC 300, GLC 300 4MATIC, 2024-2025 AMG GLC 43 4MATIC, 2025 GLC 350E 4MATIC, and AMG GLC 63 S E vehicles equipped with a panoramic sunroof. In certain crash scenarios, where the rear occupant's head contacts the C-pillar, the pillar may not absorb an adequate amount of the impact. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 201, "Occupant Protection in Interior Im
Risk: In the event of a crash, insufficient impact protection can increase the risk of injury.
Fix: Dealers will modify the roof lining and C-pillar trim, free of charge. Owner notification letters were mailed July 9, 2025. Owners may contact MBUSA customer service at 1-800-367-6372.
Service bulletins (144)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Steering 2026-09-26 · LI46.10-P-080896 · Service Bulletin/Repair Instructions
complaint slight creaking noises when steering. cause noises may come from one or more sleeves of the horn contact plate. remedy remove the horn contact plate and check the sleeves for noise; see attached video. if necessary, apply lubricant to the sleeves.
Electrical System 2026-09-25 · OTA-Comm. Mod. SW. Update · Over The Air
a software update will be performed that provides enhancements to the robustness and system stability of the communication module. the update is free of charge and runs in the background, which takes about 8 minutes to install. during this time, the vehicle can be driven without any restrictions, an
Visibility/Wiper 2026-09-25 · LI83.90-P-080935 · Service Bulletin/Repair Instructions
complaint cel illuminates and/or ac does not blow cold. cause potentially relevance to hardware and/or software remedy scenario 1: 1. if the ac does not blow cold air, replace compressor (if compressor's index and part number figure 1 match against table 1). a. if the compressor does not fall within
Service Brakes 2026-09-22 · LI42.10-P-078779 · Service Bulletin/Repair Instructions
complaint repeat workshop visit for vehicle vibration while braking from 60mph. note: although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. cause although the cause of the vibra
Electrical System 2026-09-17 · LI54.30-P-080963 · Service Bulletin/Repair Instructions
complaint issue after ota update ic odometer reading blank("_ _ _ _") ic maintanence data unavailable cause ota update e61.0 remedy in the ic control unit log, please check the following information: verify whether dtcs b228229, b228287, and b226656 are present in either a or a+s. verify that status
Electrical System 2026-09-15 · LI82.60-P-080383 · Service Bulletin/Repair Instructions
complaint radio station cover art does not refresh when switching stations. the ui continues to show the old station’s artwork instead of updating to the new one. cause when a new station change request is triggered, a temporary glitch is causing the head unit application to fail to overwrite the pr
Showing the 6 most recent of 144 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-08-26 · Service Brakes“2. service department misconduct —xxx appointment on xxx, i brought my vehicle to the dealership’s service department for a pre-scheduled and confirmed appointment regarding a safety-related warning involving the emergency brake system. despite having provided a full description of the issue at the time of booking, i was informed upon arrival that …”
2026-07-18 · Unknown Or Other“the vehicle presented multiple warnings/errors before shutting down on the street in traffic on june 23, 2026. warnings such as collision detected, blind spot assist and exit warning inoperative, pre-safe inoperative, system failure detected, service required do not shift gear, along with various lights on the dashboard which includes the check en…”
2026-07-08 · Structure:body“the rear lift gate closes unexpectedly when standing behind the vehicle and loading or unloading the cargo area. the keyless soft close activates even though there is no foot movement, or when there is minimal movement. this happens without warning. on several occasions this has happened to me, and also to my wife. it has caused minor bruises, but …”
2026-06-04 · Engine“check engine light (mil) came on while driving and vehicle lost power. would not accelerate. had it towed to mercedes benz of mrytle beach. $8000 repair. mercedes corp would not help. this is a copy of a tsb (li05.20-p-080257) for this issue: complaint engine vibrations perceived at low rpm. fault codes for the camshaft position of the inta…”
2026-05-08 · Visibility:rearview Mirrors/Devices:exterior“my 2024 mercedes-benz glc 300 has experienced multiple serious safety-related malfunctions involving several vehicle systems. in august, after picking up the vehicle from service, i placed my [xxx] grandson in his car seat, set my purse with the key inside the vehicle, and closed the rear door. the vehicle immediately locked all doors on its own,…”
2026-05-04 · Structure:body:hatchback/Liftgate · 31,153 mi“the contact owns a 2024 mercedes-benz glc 300. the contact stated that while driving at approximately 35 mph, the brake was applied unexpectedly without the contact depressing the brake pedal. the contact stated that she was unsure if the forward collision system was turned on at that time. the driver's seat belt tightened, and she sustained a brui…”
2026-02-09 · Back Over Prevention: Sensing System: Camera“new car was purchased from rocklin mercedes in california. soon after the rear back up camera kept opening and closing when the car was in drive and at random times. the was then taken into autobahn motors in belmont california to have the problem checked. i was told mercedes was working on a software fix at which time the service tech never wrote…”
2025-09-28 · Forward Collision Avoidance: Automatic Emergency Braking“while carrying my carbon fiber bicycle on a rear hitch mounted bicycle carrier, the vehicle severely and violently applies the brakes and swerves either left or right or both. this catastrophic maneuver has put me and other drivers in a non avoidable highly calamity. this “auto” maneuver happens dozens of times in during a fifteen mile trip to lo…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.