2024 Mercedes-Benz Glc300 Reliability Data: Problems & Recalls
Caution The 2024 Mercedes-Benz Glc300 has a Complaint Index of 0, the lowest of any year, but is rated Caution because it carries 8 recall campaigns requiring a dealer visit. NHTSA lists 21 complaints, mostly electrical system issues, plus 1 crash and 2 injuries.
Based on NHTSA complaints per model-year, not a reliability rating. Methodology
YearToAvoid Scorecard
- Complaint Index
- 0/100
- #10 of 10 Glc300 years
- Verdict
- Caution
- vs. other years of this model
- Complaints
- 21
- unique NHTSA reports
- Recalls
- 8
- distinct NHTSA campaigns
- Crashes
- 1
- reported in complaints
- Fires
- 0
- Injuries
- 2
- Top issue
- Electrical System
- NHTSA overall rating
- Not rated
- EPA combined MPG
- 27
- 24 city / 32 hwy
- Injuries / deaths
- 2 / 0
Top 2024 Mercedes-Benz Glc300 problems
Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.
- Electrical System8 (38%)
- Engine7 (33%)
- Transmission & Powertrain5 (24%)
- Brakes3 (14%)
- Other3 (14%)
- Collision Avoidance & Cameras2 (10%)
- Airbags1 (5%)
- Seat Belts1 (5%)
- Visibility & Wipers1 (5%)
A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.
What owners report
- Some drivers report unintended acceleration while parking, with the brake pedal depressed and the vehicle striking objects.
- Owners describe brakes that feel like they slip near the end of stopping and require extra pedal pressure to hold.
- Digital lighting and infotainment systems have failed entirely, sometimes triggering error codes and preventing the vehicle from starting.
- Check engine lights have come on with unexplained fault codes shortly after purchase, with dealers unable to resolve the issue.
- Some owners notice a thin, moving shadow projected ahead of the vehicle at night from the headlights that follows steering input.
- A rear seat belt has become stuck in the buckle and would not release, requiring the belt to be cut.
2024 Mercedes-Benz Glc300 recalls
8 NHTSA recall campaigns list this model year.
- NHTSA 26V481000Jul 24, 2026Structure & Body310,667 vehicles
Latches/locks/linkages:doors:lock
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.
Remedy: Dealers will replace the driver's door lock, free of charge. Owner notification letters are expected to be mailed September 18, 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 July 31, 2026.
- NHTSA 25V533000Aug 20, 2025Steering3,749 vehicles
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.
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.
- NHTSA 25V379000Jun 6, 2025Structure & Body92,851 vehicles
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.
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.
2024 Mercedes-Benz Glc300 fuel economy and fuel cost
- City
- 24 MPG
- Highway
- 32 MPG
- Combined
- 27 MPG
- Annual fuel cost (EPA)
- $2,950
- 15,000 mi/yr
- Fuel
- Premium
- Current regular gas
- $4.32/gal
- national avg.
EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.
2024 compared with other Glc300 years
Frequently asked questions
- Is the 2024 Mercedes-Benz Glc300 reliable?
- NHTSA lists 21 complaints and a Complaint Index of 0 for the 2024 model, the lowest among the 10 model years with data. Its verdict is capped at Caution because it has 8 recall campaigns requiring a dealer visit.
- What are the most common problems with the 2024 Glc300?
- Electrical system issues make up 38% of complaints, followed by engine problems at 33% and transmission or powertrain issues at 24%. The median mileage at failure across all reported issues is 2,174 miles.
- Does the 2024 Glc300 have any recalls?
- Yes, NHTSA lists 8 recall campaigns for the 2024 Glc300, covering the electrical system, steering, and structure/body, including a fuse box replacement and a steering coupling bolt fix.
- How does the 2024 Glc300 compare to other years?
- The 2024 model has the lowest Complaint Index (0) of any Glc300 year with data, ranking 10th out of 10 in complaint volume among years, though its verdict is Caution due to recalls rather than complaints.