2024 Mercedes-Benz GLC 300 Problems, Complaints & Recalls
- Compared with other GLC 300 years
- Far fewer complaints than other years 9th of 11 for complaints
- Safety recalls
- 8 recalls: check your VIN
- NHTSA crash rating
- Not rated
Owners have filed 21 complaints with NHTSA about the 2024 Mercedes-Benz GLC 300. That ranks 9th out of 11 GLC 300 model years for complaints. The most reported problem area is engine (7 complaints, 33%). Complaints mention 1 crash, 2 injuries. There are 8 safety recalls covering this model year.
- 21owner complaints
- 8safety recalls
- 0NHTSA investigations
- 1complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2024 Mercedes-Benz GLC 300 problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Engine | 7 | 33% | — | — | — |
| Electrical System | 6 | 29% | 1,987 | — | — |
| Power Train | 5 | 24% | — | — | — |
| Exterior Lighting | 3 | 14% | — | — | — |
| Service Brakes | 3 | 14% | 97,000 | — | — |
| Unknown or Other | 3 | 14% | — | — | — |
| Forward Collision Avoidance | 2 | 10% | — | — | — |
| Air Bags | 1 | 5% | 97,000 | — | — |
| Seat Belts | 1 | 5% | — | — | — |
| Vehicle Speed Control | 1 | 5% | — | — | — |
| Visibility/wiper | 1 | 5% | — | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2024 Mercedes-Benz GLC 300 recalls (8)
Tap a recall to see the problem, the risk and the fix.
Latches/locks/linkages:doors:lock
Problem: 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.
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.
Steering:critical fasteners
Problem: 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.
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.
Structure:body:roof and pillars
Problem: 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.
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.
Electrical system:wiring:fuses and circuit breakers
Problem: 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.
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.
Power train:driveline:differential unit
Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024 GLC 300 4MATIC, and S 580 4MATIC vehicles. The bolts that secure the rear axle differential to the rear axle carrier may come loose, which can result in a separation of the drive shaft from the rear axle differential.
Risk: Driveshaft separation can cause a loss of drive power, increasing the risk of a crash.
Fix: Dealers will repair the rear axle differential bolt connection as necessary, free of charge. Owner notification letters were mailed January 10, 2025. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2024120005.
Structure:frame and members
Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024 GLC 300 and AMG GLC 43 vehicles. The integral carrier that supports the engine may fail due to improper welds, which can cause a loss of vehicle control.
Risk: A loss of vehicle control increases the risk of a crash.
Fix: Dealers will replace the integral carrier, free of charge. Owner notification letters were mailed October 11, 2024. Owners may contact MBUSA customer service at 1-877-496-3691. MBUSA's number for this recall is 2024090013.
Electrical system:wiring:fuses and circuit breakers
Problem: 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.
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.
Structure; visibility:windshield
Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024 GLC 300 vehicles. The front, rear, and fixed side windows may not be properly secured and can detach. In addition, the front air bags may not be properly supported by the windshield during deployment.
Risk: Detached windows may cause a road hazard and increase the risk of a crash or injury. Improperly supported air bags can increase the risk of injury during a crash.
Fix: Dealers will inspect and replace the front, rear, and fixed side windows, as necessary, free of charge. Owner notification letters were mailed December 15, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2023110003.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
While driving the vehicle the engine started running rough, check engine light illuminated and it would not accelerate above 40 mph. There are 29,100 miles on the vehicle, it's been serviced on schedule by Mercedes and is owned by me since new. It is especially concerning due to the acceleration…
While driving my 2024 Mercedes-Benz GLC 300 on California highways, the vehicle has repeatedly experienced sudden uncontrolled deceleration, unexpected transmission downshifts into 2nd gear, severe transmission jerking, and complete loss of accelerator response. The first major incident occurred on…
3/31/26 2pm After highway driving - 3 miles/35 mph tried to brake- Immediately something was wrong with the brake as and it felt spongy/mushy/unresponsive. Car did not slow until I pressed the brake fully to the floor. The car did stop &was alarmingly unresponsive. Around this time,noticed the…
â¢Incident Details: â¢Both sudden shutdown incidents â¢â12V Batteryâ warning (first incident) â¢âStop - Switch Off Vehicleâ warning (second incident) â¢That it happened with children in the car on a tollway Safety Concerns: â¢Loss of power steering/braking â¢Risk of collision…
I am writing to report a critical safety issue with my 2024 Mercedes-Benz GLC300, VIN: [XXX] , which I purchased on [XXX], from Mercedes-Benz of Walnut Creek, CA, with 9,500 miles. On [XXX], while driving on [XXX], the vehicle suddenly lost power, the transmission downshifted to 2nd gear, and the…
Other Mercedes-Benz GLC 300 years
← 2023 GLC 300 · 2025 GLC 300 →
| Year | Complaints | Recalls |
|---|---|---|
| 2026 GLC 300 | 1 | 3 |
| 2025 GLC 300 | 16 | 3 |
| 2024 | 21 | 8 |
| 2023 GLC 300 | 55 | 12 |
| 2022 GLC 300 | 61 | 2 |
| 2021 GLC 300 | 67 | 9 |
| 2020 GLC 300 | 69 | 16 |
| 2019 GLC 300 | 47 | 12 |
| 2018 GLC 300 | 87 | 12 |
| 2017 GLC 300 | 99 | 12 |
| 2016 GLC 300 | 133 | 12 |
See all Mercedes-Benz GLC 300 problems by year, every Mercedes-Benz model, or the Mercedes-Benz VIN decoder.
Similar Mercedes-Benz models
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Frequently asked questions
What are the most common problems with the 2024 Mercedes-Benz GLC 300?
Owners most often report engine, electrical system, power train problems. The top one, engine, accounts for 7 complaints.
Was there a recall on the 2024 Mercedes-Benz GLC 300?
Yes, 8 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2024 Mercedes-Benz GLC 300 a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other GLC 300 model years, the 2024 has far fewer complaints than most years. Always get a pre-purchase inspection and check the VIN for open recalls.