2026 Mercedes-Benz Glc 300 4matic problems, complaints & recalls
Most-reported problem areas: Structure:body (1) · Service Brakes (1) · Power Train (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)
Electrical System: Instrument Cluster/Panel 2026-05-01 · campaign 26V281000 · 144,049 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024-2026 AMG GT, C-Class, E-Class, SL, CLE, and GLC vehicles. The infotainment control unit may reset while the vehicle is in motion and cause the instrument panel display to go blank.
Risk: An instrument panel display that fails to show critical safety information, such as the speedometer and warning lights, increases the risk of a crash.
Fix: Dealers will update the infotainment control unit software, free of charge. Owner notification letters were mailed June 29, 2026. MBUSA's number for this recall is 2026050004. 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 May 8, 2026.
Seat Belts:rear/Other 2026-03-20 · campaign 26V172000 · 20 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2026 AMG GLC43 4MATIC, GLC 300 4MATIC, GLC 300, and GLC 300 4MATIC Coupe vehicles. The center rear seat belts may have been installed without the child seat protection function and fail to lock a child restraint properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection," and FMVSS number 209, "Seat Belt Assemblies."
Risk: In the event of a crash, an insufficiently restrained child has an increased risk of injury.
Fix: Dealers will inspect and replace the center rear seat belt assembly as necessary, free of charge. Owner notification letters were mailed May 15, 2026. 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 March 27, 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.
Service bulletins (113)
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.
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
Structure:body 2026-09-14 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Showing the 6 most recent of 113 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-06-17 · Electrical System · 5,769 mi“the contact owns a 2026 mercedes-benz glc 300 4matic. the contact stated that her instrumental panel was not working, which caused her to be unable to see the gas level, oil, thermostat, and any warning lights. the vehicle was taken to a dealer twice. the first occasion the vehicle's instrumental panel was repaired. the failure reoccurred. the vehi…”
2026-06-11 · Unknown Or Other · 🔥 fire“i was parked for a few minutes and i suddenly noticed a strong oder coming into my vehicle. i could not pinpoint what the smell was, but i knew that whatever was coming into the suv was not safe. my screen started flashing warnings "service required: do not drive" “do not shift gears”. after the warning, white smoke started to roll out from under …”
2026-05-08 · Structure:body“i bought a 2026 glc300 4matic suv a month ago. i am very disappointed and scared of serious bodily damage due to the trunk door closing by itself while my upper body is loading/unloading the trunk. my wife and i were hit on the shoulder, back, arms, or head over a dozen times for 1 month. we took the car to the dealership for the problem but di…”
2026-04-25 · Service Brakes“the breaks on these vehicles are extremely dangerous . before i leased this vehicle test drove 3 vehicles. the salesman said the breaks will adjust as you drive. they have not. its all over the internet that this vehicle has very unresponsive breaks. it takes 75 precent of pressure pushing down on the break pad distance before the car breaks engage…”
2026-01-16 · Power Train“while at a stop with foot on brake, the vehicle surges forward powerfully making a loud noise despite having foot on brake. forcefully pushing on brake pedal harder eventually stops the car. most recent time the display screen showed "transmission deactivated". dealership drove car once but did not perform service inspection. dealership to pick…”
2026-01-13 · Back Over Prevention: Sensing System: Camera“backup camera keeps opening and closing constantly while driving in slow speeds. while driving, backup camera keeps opening and closing, creating a noise and distraction to the driver and might cause accidents. the issue has been confirmed by the mercedes benz dealership service manager, describing as a recurrent in specific models with no current…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.