2024 Mercedes-Benz Glc300 Problems, Recalls & Reliability
Verdict
BestComplaint Index
11/100
#9 most-complained of 10 Glc300 years
Based on NHTSA complaints per model-year, not a reliability rating. Methodology
The 2024 Mercedes-Benz Glc300 ranks 9th out of 10 model years, with a complaint index of 11 and verdict of Best. NHTSA lists 21 complaints, 1 crash, 2 injuries, and 8 recalls for this year.
- Complaints
- 21
- Recalls
- 8
- Crashes / fires
- 1 / 0
- Injuries / deaths
- 2 / 0
- NHTSA overall rating
- Not rated
- EPA combined MPG
- 27
- 24 city / 32 hwy
Top 2024 Mercedes-Benz Glc300 problems
NHTSA owner 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%)
What owners report
- Owners report the vehicle experienced unintended acceleration while parking, leading to a crash into a wall, another vehicle, and poles.
- Drivers describe the brakes feeling like they slip near the end of a stop, requiring extra pedal pressure to fully stop.
- Digital lighting and full electrical systems have failed shortly after purchase, sometimes leaving the vehicle unable to start.
- Check engine lights have illuminated with fault codes that dealers could not resolve, with some owners told to keep driving anyway.
- A rear passenger seatbelt buckle became stuck and would not release, requiring the belt to be cut to free the passenger.
- At stops, some vehicles jerk forward unexpectedly and show rough downshifts between 9th and 8th gear.
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?
- Based on NHTSA owner complaints and recalls, the 2024 Glc300 has a complaint index of 11 and ranks 9th out of 10 model years, earning a Best verdict relative to other Glc300 years.
- What problems does the 2024 Glc300 have?
- NHTSA complaints point mainly to the electrical system, which accounts for 8 of 21 complaints (38%), followed by engine issues (7 complaints, 33%) and transmission/powertrain issues (5 complaints, 24%).
- Does the 2024 Glc300 have recalls?
- Yes, NHTSA lists 8 recalls for the 2024 Glc300, covering areas including the electrical system, structure and body, steering, and transmission and powertrain. None are do-not-drive recalls.
- How does the 2024 Glc300 compare to other years?
- With a complaint index of 11, the 2024 model has far fewer reported problems than the 2023 model, which has a complaint index of 100 and an Avoid verdict.
- What is the top problem area for the 2024 Glc300?
- The top problem area is the Electrical System, accounting for 38% of complaints, with a median mileage at failure of 1,987 miles for that category.