The Used Car Index

2023 Mercedes-Benz GLC 300 problems

NHTSA lists 55 complaints for the 2023 Mercedes-Benz GLC 300, 2 of them mention a crash and 0 mention a fire. 2 complaints mention an injury, with 2 injuries and 1 deaths reported.

Data build 2026-10-09.

NHTSA lists this vehicle as MERCEDES-BENZ GLC 300.

At a glance

Complaints
55
With crash
2
With fire
0
With injury (complaints)
2
Injuries
2
Deaths
1
Recalls
12
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
310,667
Investigations
1
Open investigations
0
Manufacturer communications
336

Complaints per 100k sold unavailable. No sales source is available for this record.

Where the complaints are

Top systems
SystemComplaintsShare of this vehicle's complaints
ELECTRICAL SYSTEM3054.5%
ENGINE1527.3%
EXTERIOR LIGHTING1018.2%
UNKNOWN OR OTHER814.5%
FORWARD COLLISION AVOIDANCE712.7%
LANE DEPARTURE610.9%
FUEL/PROPULSION SYSTEM59.1%
SERVICE BRAKES59.1%
STRUCTURE47.3%
POWER TRAIN35.5%
Top subsystems
SystemSubsystemComplaints
FORWARD COLLISION AVOIDANCEAUTOMATIC EMERGENCY BRAKING6
LANE DEPARTUREBLIND SPOT DETECTION4
STRUCTUREBODY4
LANE DEPARTUREASSIST2
LANE DEPARTUREWARNING1

One complaint can name several systems, so shares can add to more than 100 percent.

Model-generated complaint tags

These labels are model-generated, not NHTSA data.

Failure modes
LabelCountShare of taggedMean confidence
electrical electronic3360.0%0.92
visibility or lighting712.7%0.86
loss of control59.1%0.73
structural or corrosion47.3%0.55
mechanical failure35.5%0.74
fluid or fuel leak11.8%1.00
restraint or airbag11.8%0.76
unclear11.8%1.00
Severities
LabelCountShare of taggedMean confidence
moderate2850.9%0.85
low1730.9%0.69
high814.5%0.92
none23.6%0.92

Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 55 tagged complaints of 55 complaints (100.0%).

Confidence is the model's own probability for the label it chose (0 to 1), not accuracy.

Model-generated labels on tagged complaints only. Model years 2013 and newer are tagged in full; 2012 in part (see tagged_share); earlier model years have no tags. NHTSA's own flags remain separate in the complaints block.

Recalls

See new recalls and investigations this week.

12 recalls. Showing the latest 10 of 12.

26V481000

Date: 2026-07-24. Systems: LATCHES/LOCKS/LINKAGES.

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 aut (excerpt)

Consequence: A vehicle rollaway increases the risk of a crash or injury. (excerpt)

Remedy: 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 NH (excerpt)

Do not drive: No. Park outside: No.

25V533000

Date: 2025-08-20. Systems: STEERING.

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.

Consequence: A loose steering coupling can cause a loss of steering control, increasing the risk of a crash.

Remedy: 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.

Do not drive: No. Park outside: No.

25V365000

Date: 2025-06-11. Systems: EXTERIOR LIGHTING.

Defect: 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."

Consequence: Improperly adjusted headlights can reduce visibility, increasing the risk of a crash.

Remedy: 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.

Do not drive: No. Park outside: No.

25V379000

Date: 2025-06-06. Systems: STRUCTURE.

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 requireme (excerpt)

Consequence: In the event of a crash, insufficient impact protection can increase the risk of injury. (excerpt)

Remedy: 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. (excerpt)

Do not drive: No. Park outside: No.

25V255000

Date: 2025-05-12. Systems: ELECTRICAL SYSTEM.

Defect: 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.

Consequence: 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.

Remedy: 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.

Do not drive: No. Park outside: No.

24V808000

Date: 2024-10-25. Systems: SEATS.

Defect: 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.

Consequence: An incorrectly attached seat may not properly restrain the driver during a crash, increasing the risk of injury.

Remedy: 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.

Do not drive: No. Park outside: No.

24V520000

Date: 2024-07-08. Systems: STRUCTURE.

Defect: 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.

Consequence: An improper air bag deployment increases the risk of injury in a crash. Overheated wiring can increase the risk of a fire.

Remedy: 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.

Do not drive: No. Park outside: No.

24V115000

Date: 2024-02-16. Systems: ELECTRICAL SYSTEM.

Defect: 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.

Consequence: 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.

Remedy: 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.

Do not drive: No. Park outside: No.

23V880000

Date: 2023-12-21. Systems: FUEL SYSTEM, GASOLINE.

Defect: 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.

Consequence: A loss of drive power can increase the risk of a crash.

Remedy: 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.

Do not drive: No. Park outside: No.

23V878000

Date: 2023-12-21. Systems: ENGINE AND ENGINE COOLING, FUEL SYSTEM, GASOLINE.

Defect: 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.

Consequence: 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.

Remedy: 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.

Do not drive: No. Park outside: No.

Investigations

1 investigations; 0 open.

DP23003

Opened: 2023-07-25. Closed: 2024-05-20.

Malfunction Indicator Light / No-Start

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 a ISG 48-volt on-board electrical system,a 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 databas

Systems: POWER TRAIN.

Linked campaign numbers: None listed.

Manufacturer communications

336 manufacturer communications.

Communications by system
SystemCount
ELECTRICAL SYSTEM181
POWER TRAIN26
STRUCTURE26
EXTERIOR LIGHTING24
VISIBILITY/WIPER22
STEERING21
SUSPENSION17
ENGINE16

11038187

Date: 2026-09-26. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.

Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic /9Ga TRONIC automatic transmission) and 725.1 (NAG3 facelift/9Ga TRONIC automatic transmission facelift) For faster, more effective and more targeted diagnosis, Intelligent Predictive Repair (IPR) has been develop

11038188

Date: 2026-09-26. Type: Service Bulletin/Repair Instructions. Systems: STEERING.

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.

11037484

Date: 2026-09-25. Type: Service Bulletin/Repair Instructions. Systems: VISIBILITY/WIPER.

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

11038186

Date: 2026-09-22. Type: Service Bulletin/Repair Instructions. Systems: SERVICE BRAKES.

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

11038175

Date: 2026-09-17. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

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

11038174

Date: 2026-09-15. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

Complaint Radio station cover art does not refresh when switching stations. The UI continues to show the old stationa 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

11037834

Date: 2026-09-14. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.

Complaint Whining / humming noises (described as foghorna like) from the drivetrain in the rear axle area during cornering. (figure 1) On the abovea mentioned vehicles with a mileage up to 15,000 km (about 9,300 mi), noises can occur from the rear axle differential. Cause Drivetrain resonance caus

11037987

Date: 2026-09-14. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.

Complaint Only vehicles with a variable transfer case are affected. This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with light load, vibrations or jolting sensation may come from the drivetrain. It may be mistaken for a harsh shift. Cause Modified oil qu

11037806

Date: 2026-09-11. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the following scenarios: a ? Flashing without a speed limit ("a a "). a ? Flashing when current vehicle speed is under speed limit. a ? Flashing between US speed lim

11037616

Date: 2026-09-04. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.

Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9Ga TRONIC automatic transmission) and 725.1 (NAG3 facelift/9Ga TRONIC automatic transmission facelift) For faster, more effective and more targeted diagnosis, Intelligent Predictive Repair (IPR) has been develo

Notes on this record

  • Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
  • System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
  • Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
  • A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.

Other names NHTSA uses

None listed.

Matched NHTSA models

Matched labels and complaints
NHTSA model labelComplaints
GLC 30055

Same model, other years

All model years | All Mercedes-Benz models

Other Mercedes-Benz models, 2023

Sources

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