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2023 Mercedes-Benz Glc 300 Problems and Recalls
Owners filed 55 complaints with NHTSA about the 2023 Mercedes-Benz Glc 300, most often about the electrical (55% of complaints). It is 7th of 11 Glc 300 model years by number of complaints and has 12 recalls.
Most common 2023 Mercedes-Benz Glc 300 problems
Electrical
30 complaints · 55%The contact owns a 2023 Mercedes-Benz glc300. The contact stated that while he and his wife were loading the trunk of the vehicle, the trunk door independently lowered and struck his wife on the head. The contact stated that the failure occurred frequently. The contact stated that he had previously had a concussion…
The contact owns a 2023 Mercedes-Benz Glc 300 w4. The contact stated that when his wife was parking the vehicle at approximately 5 MPH and when she depressed the brake pedal, the vehicle stalled. The contact stated that his wife said that the brake pedal failed, and the instrument cluster was black. The contact stated…
Engine
15 complaints · 27%Driver assistance
11 complaints · 20%Parts named most often: automatic emergency braking, blind spot detection, assist, warning.
The contact owns a 2023 Mercedes-Benz Glc 300. The contact stated while driving on an access road at 35 MPH, the brake pedal was not depressed; however, the vehicle came to an immediate stop. There were no warning lights illuminated. The contact restarted the vehicle and was able to continue driving normally. The…
Lights
10 complaints · 18%Other or unspecified
8 complaints · 14%Fuel system
5 complaints · 9%Brakes
5 complaints · 9%Body and structure
4 complaints · 7%Parts named most often: body.
The contact owns a 2023 Mercedes-Benz glc300. The contact stated that while the vehicle was parked, and the contact and his wife were removing groceries from the rear of the vehicle, the tailgate was independently lifted due to the design of the keyless entry feature. The contact and his wife continued to remove items…
Complaints are owner reports to NHTSA, not verified defects. One complaint can name several components, so shares add up to more than 100%.
2023 Mercedes-Benz Glc 300 recalls
Doors and locks: lock
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.
Full defect summary
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.
Steering: critical fasteners
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.
Full defect summary
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.
Lights: headlights
Risk: Improperly adjusted headlights can reduce visibility, increasing the risk of a crash.
Fix: Dealers will inspect the headlights for sealing caps and install caps as necessary, free of charge. Owner notification letters were mailed july 18, 2025. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2025060005.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2023 glc 300 and glc 300 4matic vehicles. The headlights are missing adjustment prevention caps, which can allow the headlights to be improperly adjusted. As such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard number 108, "lamps, reflective devices, and associated equipment."
Body and structure: roof and pillars
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.
Full defect summary
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 impact."
Electrical: fuses and circuit breakers
Risk: An incorrect fuse box can result in a sudden loss of drive power or a loss of critical safety functions such as the restraint systems or instrument cluster, increasing the risk of a crash or injury. Additionally, there could be an increased risk of a fire.
Fix: Dealers will inspect and replace the main fuse boxes, free of charge. Owner notification letters were mailed june 6, 2025. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2025050003/4.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2023-2024 c-class, e-class, s-class, sl, glc, eqe SUV, eqe, eqs SUV, and eqs vehicles that were incorrectly repaired under recall 24v-115. An incorrect fuse box that was not designed for the vehicle may have been installed.
Seats: critical fasteners
Risk: An incorrectly attached seat may not properly restrain the driver during a crash, increasing the risk of injury.
Fix: Dealers will inspect the bolt connection and tighten the bolts between the driver and front passenger seat rail and the vehicle body, free of charge. Owner notification letters were mailed december 4, 2024. Owners may contact mbusa customer service at 1-800-367-6372.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2023 glc 300 and glc 300 4matic vehicles. The driver's and front passenger seat rail may have been incorrectly attached to the vehicle body.
Body and structure: dashboard
Risk: An improper air bag deployment increases the risk of injury in a crash. Overheated wiring can increase the risk of a fire.
Fix: Dealers will inspect and tighten the bolts as necessary, free of charge. Owner notification letters were august 23, 2024. Owner may contact mbusa customer service at 1-877-496-3691.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2023 glc 300 4matic vehicles. Certain dashboard area bolts may have been insufficiently tightened, potentially causing improper air bag deployment or parts separation during a crash. In addition, the 12-volt electric auxiliary heater connections may be loose, possibly causing the electrical wiring to overheat.
Electrical: fuses and circuit breakers
Risk: An 80-amp fuse that fails can result in a sudden loss of drive power or a loss of critical safety functions such as the restraint systems or instrument cluster, increasing the risk of a crash or injury. Additionally, there could be an increased risk of a fire.
Fix: Dealers will replace the main fuse boxes, free of charge. Owner notification letters were mailed april 5, 2024. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2024030008.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2023-2024 c300, amg c43, s580e, s580, maybach s580, maybach s680, amg sl43, amgsl63, glc300, eqe350, eqe500, eqs450, eqs580, amg eqs, 2023 s500, amg sl55, amg eqe, 2024 e350, e450, amg c63e s, cle300 coupe, cle450 coupe, and glc300 coupe vehicles. The 80-amp fuses may have been manufactured incorrectly, which can cause the fuses to fail.
Fuel system: fuel pump
Risk: A loss of drive power can increase the risk of a crash.
Fix: Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed on june 28, 2024. Owner notification letters will be mailed in phases, on february 23, 2024, april 19, 2024, june 28, 2024, august 9, 2024, october 1, 2024, and december 2, 2024. Owners may contact mbusa customer service at 1-800-367-6372. This recall is an expansion of NHTSA recall number 23v-445.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2021-2024 gle, gls, c-class, e-class, s-class, sl, glc, cls, amg gt, and g-class vehicles. Please refer to mbusa's recall report for specific vehicle details. The fuel pump may shutdown, causing a loss of drive power.
Engine: critical fasteners
Risk: An inadequate seal can allow fuel and oil to leak onto the road, creating a hazard for other road users and increasing the risk of a crash. Additionally, a fuel and oil leak in the presence of hot engine components can increase the risk of a fire.
Fix: Dealers will replace the high-pressure fuel pump, free of charge. Owner notification letters were mailed february 9, 2024. Owners may contact mbusa customer service at 1-800-367-6372.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2023 glc300, 2024 gle350, and gle450 vehicles equipped with an m254 engine. The incorrect screws, installed on the high-pressure fuel pump, may prevent a proper seal from forming between the high-pressure fuel pump and the tandem oil pump.
Equipment: trailer hitches
Risk: A detached tow eye can separate the vehicle from the tow truck, increasing the risk of a crash or injury.
Fix: Dealers will inspect and replace the front crossmember, as necessary, free of charge. Owner notification letters were mailed january 26, 2024. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's numbers for this recall are 2023090010/120002.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2023 glc300 vehicles. The front tow eye may be inadequately threaded to the crossmember and can detach during towing.
Fuel system: fuel pump
Risk: A loss of drive power can increase the risk of a crash.
Fix: Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed on june 14, 2024. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2023070012.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2021-2023 c-class, e-class, s-class, cls, sl, gt, glc, gle, gls, and g-class vehicles. Please refer to mbusa's recall report for specific vehicle details. The fuel pump may shutdown, which can result in a loss of drive power.
Recall repairs are free at any franchised dealer. Enter your VIN at nhtsa.gov/recalls to see which recalls are still open on your car.
NHTSA defect investigations
Malfunction indicator light / no-start
Summary
In a letter dated july 2, 2023, aldelberto a. Cordova (the petitioner) submitted a petition requesting that NHTSA initiate an investigation of an alleged defect within the âisg 48-volt on-board electrical system,â which resulted in warning light illumination as well as an inability to start the vehicle in a 2023 mercedes-benz glc300. Odi reviewed the petition, complaint data in NHTSA's databases and information gathered from an information request (ir) letter sent to mercedes-benz. Examination of this information indicates that the subject component listed in the petition is not capable of causing the a loss of motive power. The alleged defect cited in the petition was caused by a softwa
Questions about the 2023 Mercedes-Benz Glc 300
- What are the most common problems with the 2023 Mercedes-Benz Glc 300?
- By NHTSA owner complaints: electrical (30 complaints); engine (15 complaints); driver assistance (11 complaints).
- How many recalls does the 2023 Mercedes-Benz Glc 300 have?
- 12 recalls listed by NHTSA, the latest from July 24, 2026 (doors and locks). Check your VIN at nhtsa.gov/recalls to see which ones are still open on your car.
- Is the 2023 a bad year for the Mercedes-Benz Glc 300?
- It is 7th of 11 Glc 300 model years by number of complaints, with 55 complaints. Complaint counts are not adjusted for how many cars were sold, so popular years collect more of them, and the newest years have had less time to.