2023 MERCEDES-BENZ GLC 300 Complaints and Recall Information
The 2023 MERCEDES-BENZ GLC 300 has 5 complaints and 65 recalls filed with NHTSA. Owners most frequently report issues with the rear hatch hands free system closing unexpectedly and the lane change assist/blind spot warning system giving false alerts. There is also a complaint regarding an engine oil leak occurring without driving the vehicle.
Common Issues- Unexpected rear hatch closure. The hands free system closes the rear hatch without foot activation, trapping the driver and causing bruising. The dealer eventually disabled the system after multiple visits.
- Faulty lane change assist. The blind spot warning system falsely detects vehicles, preventing lane changes and activating warning lights even when lanes are clear. This causes unsafe driving conditions, especially at night or in poor weather.
- Sudden unintended braking. The vehicle stopped abruptly without the brake pedal being pressed, with no warning lights illuminated. The issue was diagnosed but not repaired by the dealer.
- Engine oil leak. There is a significant engine oil leak without much driving. The electronic oil meter still shows oil in the acceptable range. The leak may relate to issues addressed in recalls affecting similar engines.
There are 65 recalls related to various safety and mechanical systems, including steering, fuel delivery, electrical components, body structure, lighting, and seat fasteners. These recalls affect thousands of vehicles and involve repairs such as tightening bolts, replacing fuel pumps, modifying trim, and inspecting fuse boxes.
Recalls- Steering coupling bolts. (NHTSA 25V533000) 3,749 vehicles have bolts that may be improperly tightened, risking loss of steering control. Dealers will tighten bolts free of charge. No do not drive advisory.
- Trailer hitch attachment. (NHTSA 23V629000) 12,118 vehicles have front tow eye mounting issues risking detachment during towing. Dealers will inspect and replace front crossmembers as needed. No do not drive advisory.
- Headlight adjustment caps. (NHTSA 25V365000) 127 vehicles lack adjustment prevention caps on headlights, allowing improper alignment that reduces visibility. Dealers will install missing caps at no cost. No do not drive advisory.
- Incorrect fuse boxes. (NHTSA 25V255000, 24V115000) Over 31,000 vehicles may have fuse boxes not designed for the vehicle, risking loss of power, safety functions, or fire. Dealers will inspect and replace fuse boxes free of charge. No do not drive advisory.
- Panoramic sunroof structure. (NHTSA 25V379000) 92,851 vehicles have C-pillars that may not absorb crash impact adequately, increasing injury risk. Dealers will modify roof lining and trim for free. No do not drive advisory.
- Dashboard bolt tightening. (NHTSA 24V520000) Seven vehicles have insufficiently tightened bolts potentially causing improper airbag deployment or wiring overheating. Dealers will inspect and tighten bolts. No do not drive advisory.
- Seat rail attachment. (NHTSA 24V808000) Seven vehicles have driver and front passenger seat rails possibly loosely attached, risking inadequate restraint during crashes. Dealers will inspect and tighten bolts free of charge. No do not drive advisory.
- Fuel pump failure. (NHTSA 23V445000, 23V880000) Over 220,000 vehicles risk fuel pump shutdown causing loss of drive power and increased crash risk. Dealers will replace fuel pumps at no charge. No do not drive advisory.
- High-pressure fuel pump seal. (NHTSA 23V878000) Seven vehicles have incorrect screws preventing proper seals between fuel and oil pumps, risking leaks that can cause crashes or fires. Dealers will replace high-pressure fuel pumps free of charge. No do not drive advisory.
Owners of 2023 MERCEDES-BENZ GLC 300 vehicles who face repeated repairs, unresolved recall issues, or safety-related defects may have rights under their state’s lemon law. It may be beneficial to consult with a consumer protection attorney specializing in lemon law cases.
2023 MERCEDES-BENZ GLC 300 Summary
2023
Model Year
5
Total Complaints
11
Total Recalls
364384
Vehicles Affected
Recalls
2023 MERCEDES-BENZ GLC 300
3749 vehicles affected
STEERING:CRITICAL FASTENERS
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.
2023 MERCEDES-BENZ GLC 300
92851 vehicles affected
STRUCTURE:BODY:ROOF AND PILLARS
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."
Risk: In the event of a crash, insufficient impact protection can increase the risk of injury.
2023 MERCEDES-BENZ GLC 300
443 vehicles affected
ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
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.
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.
2023 MERCEDES-BENZ GLC 300
127 vehicles affected
EXTERIOR LIGHTING:HEADLIGHTS
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."
Risk: Improperly adjusted headlights can reduce visibility, increasing the risk of a crash.
2023 MERCEDES-BENZ GLC 300
7 vehicles affected
SEATS:CRITICAL FASTENERS
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.
Risk: An incorrectly attached seat may not properly restrain the driver during a crash, increasing the risk of injury.
2023 MERCEDES-BENZ GLC 300
7 vehicles affected
STRUCTURE:INTERIOR PANELS:DASHBOARD
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.
Risk: An improper air bag deployment increases the risk of injury in a crash. Overheated wiring can increase the risk of a fire.
2023 MERCEDES-BENZ GLC 300
31848 vehicles affected
ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
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.
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.
2023 MERCEDES-BENZ GLC 300
12118 vehicles affected
TRAILER HITCHES
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.
Risk: A detached tow eye can separate the vehicle from the tow truck, increasing the risk of a crash or injury.
2023 MERCEDES-BENZ GLC 300
143551 vehicles affected
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
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.
Risk: A loss of drive power can increase the risk of a crash.
2023 MERCEDES-BENZ GLC 300
7 vehicles affected
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
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.
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.
2023 MERCEDES-BENZ GLC 300
79676 vehicles affected
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
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.
Risk: A loss of drive power can increase the risk of a crash.
Complaints
2023 MERCEDES-BENZ GLC 300
ID: 2127343ENGINE
Vehicle has a significant engine oil leak without being driven. Engine oil electronic meter still shows engine oil to be in "Ok" range. Vehicle is 2023 with only 19680 miles and is rarely driven till the last 2 months. Other 2023 Model Year MB GLC300's manufactured at the same Bremen Germany plant are already being recalled for engine and fuel leaks, however, this one is not on the list. This vehicle is also the 2.0L Inline 4 engine and may be the same engine as the others being recalled. The others are recalled due to an imperfect seal between the high pressure fuel pump and the tandem oil pump. My vehicle is leaking engine fluid, likely oil at a significant rate without having been driven in any unsafe manner or much use.
2023 MERCEDES-BENZ GLC 300
ID: 2081403STRUCTURE:BODY:HATCHBACK/LIFTGATE
1. Rear Hatch hands free system - closes unexpectedly while loading or unloading car without using feet to trigger system. Hatch will close down and trap driver in the rear, causing bruising on driver and requiring assistance to push hatch back up. Has been into dealer multiple times since this is HUGE risk to animals or small children exiting out of the rear. Dealer finally disabled hands free system. 2. Lane change assist/blind spot warning - Auto believes there's a vehicle in the lane to either side and will stop car from changing lanes, when actually there isn't a vehicle there. Has caused several close calls due to signaling to change lanes the car will then try to pull back into previous lane. Warning light remains on the side mirrors even when there are no vehicles in the lane. This is especially hazardous while driving at night and in less than optimal weather conditions.
2023 MERCEDES-BENZ GLC 300
ID: 2081402LANE DEPARTURE: ASSIST
1. Rear Hatch hands free system - closes unexpectedly while loading or unloading car without using feet to trigger system. Hatch will close down and trap driver in the rear, causing bruising on driver and requiring assistance to push hatch back up. Has been into dealer multiple times since this is HUGE risk to animals or small children exiting out of the rear. Dealer finally disabled hands free system. 2. Lane change assist/blind spot warning - Auto believes there's a vehicle in the lane to either side and will stop car from changing lanes, when actually there isn't a vehicle there. Has caused several close calls due to signaling to change lanes the car will then try to pull back into previous lane. Warning light remains on the side mirrors even when there are no vehicles in the lane. This is especially hazardous while driving at night and in less than optimal weather conditions.
2023 MERCEDES-BENZ GLC 300
ID: 2081401LANE DEPARTURE: BLIND SPOT DETECTION
1. Rear Hatch hands free system - closes unexpectedly while loading or unloading car without using feet to trigger system. Hatch will close down and trap driver in the rear, causing bruising on driver and requiring assistance to push hatch back up. Has been into dealer multiple times since this is HUGE risk to animals or small children exiting out of the rear. Dealer finally disabled hands free system. 2. Lane change assist/blind spot warning - Auto believes there's a vehicle in the lane to either side and will stop car from changing lanes, when actually there isn't a vehicle there. Has caused several close calls due to signaling to change lanes the car will then try to pull back into previous lane. Warning light remains on the side mirrors even when there are no vehicles in the lane. This is especially hazardous while driving at night and in less than optimal weather conditions.
2023 MERCEDES-BENZ GLC 300
ID: 2068163FORWARD COLLISION AVOIDANCE
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 local dealer was contacted and sent a tow truck to pick up the vehicle from the residence for diagnostic testing. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 12,000.