Vehicle Data Hub

2024 Mercedes-Benz GLC 300 problems

NHTSA has received 33 complaints about the 2024 Mercedes-Benz GLC 300, and 21% of them involve engine. After that come electrical system (18%) and drivetrain & axles (15%).

At a glance

Complaints
33 filed with NHTSA
Most reported
Engine 21% of complaints
Crashes and fires
2 and 0
Injuries and deaths
3 and 0

Source: NHTSA owner complaints

Where the complaints are

Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.

  • Engine 21%
  • Electrical system 18%
  • Drivetrain & axles 15%
  • Brakes 9%
  • Lighting 9%
  • Forward collision avoidance 6%
  • Air bags 3%
  • Cruise control 3%
  • Seat belts 3%
  • Wipers, windshield & visibility 3%

What the data shows

Safety-related details: 2 complaints mention a crash; 3 injuries reported.

Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2024 ranks 9th most-complained-about out of 10 model years of the Mercedes-Benz GLC 300 with enough data (33 complaints in that window). It is also covered by 8 safety recall campaigns.

What owners wrote

A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.

The contact owns a 2024 Mercedes Benz GLC 300. The contact stated that while attempting to park, the vehicle experienced unintended acceleration causing the contact to lose control of the vehicle and crash into a wall, another vehicle, and two poles where it came to stop when crashing into the second pole. During the unintended acceleration, the contact depressed the brake pedal to control the vehicle however it failed to respond. No air bags deployed.

Reported at 97,000 miles, July 2024 CrashInjury

I am experiencing auto braking when there are no obstructions near or around the vehicle. The auto braking is random but occurs fairly often. It is very unsettling and makes me very nervous while driving my brand new vehicle. This happens without warning and can definitely put myself and my passengers as well as passengers in the vehicles around me at great risks of collisions.

February 2025 Injury

The contact owns a 2024 Mercedes-Benz GLC300. The contact stated that upon starting the vehicle, the check engine warning light illuminated. The vehicle was taken to a dealer and the contact was informed that the 48V bolt battery had caused the check engine warning light to illuminate. The contact was informed by the dealer that the temporary fix would be to reduce the battery charge to 25% then charge the battery to 75%.

Reported at 1,800 miles, January 2024

The contact owns a 2024 Mercedes-Benz GLC300. The contact stated that while driving at an undisclosed speed, the audible alarm activated and several warning lights illuminated. The contact stated that all the warning lights went off except the check engine and the low-battery warning lights. The vehicle was taken to the dealer. The vehicle had not been diagnosed or repaired. The contact stated that the vehicle was previously taken to the dealer on three occasions because of electrical or software failure.

Reported at 2,174 miles, March 2024

Other model years of the GLC 300

Best and worst years for the Mercedes-Benz GLC 300