complaints.title

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14 complaints
MERCEDES-BENZ GLC 300 2024 ENGINE
low
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 sche
NHTSAUSMay 2026Source →
MERCEDES-BENZ GLC 300 2024 POWER TRAIN
medium
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 tr
NHTSAUSMay 2026Source →
MERCEDES-BENZ GLC 300 2024 SERVICE BRAKES
low
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
NHTSAUSMar 2026Source →
MERCEDES-BENZ GLE 400 E 2024 VEHICLE SPEED CONTROL
low
My Mercedes Benz GLE450e Hybrid SUV has had a persistent but sporadic safety issue that suddenly causes the vehicle to go into "turtle mode" with a "performance extremely limited" warning when trying
NHTSAUSMar 2026Source →
MERCEDES-BENZ GLC 300 2024 VEHICLE SPEED CONTROL
medium
•Incident Details: •Both sudden shutdown incidents •“12V Battery” warning (first incident) •“Stop - Switch Off Vehicle” warning (second incident) •That it happened with children in t
NHTSAUSAug 2025Source →
MERCEDES-BENZ GLC 300 2024 POWER TRAIN
medium
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 dr
NHTSAUSMar 2025Source →
MERCEDES-BENZ GLC 300 2024 FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
high
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 dri
NHTSAUSFeb 2025Source →
MERCEDES-BENZ GLC 300 2024 ENGINE
high
Attention Assist System Suspended notification comes on randomly on vehicle while driving, rendering driver defenseless with regard to safety warnings that would otherwise be in effect, such as blind
NHTSAUSDec 2024Source →
MERCEDES-BENZ GLC 300 2024 FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
high
The reverse sensors are faulty, causing the GLC300 model to randomly auto-brake while going in reverse. My driveway is flat and long with no significant grade changes and this has occurred at another
NHTSAUSOct 2024Source →
MERCEDES-BENZ GLC 300 2024 UNKNOWN OR OTHER
low
OUR SUV IS 6 WEEKS NEW AND WAS PURCHASED NEW AT THE MERCEDES DEALERSHIP. REAR HATCH: WHEN STANDING BEHIND VEHICLE REAR DOOR HATCH CLOSES RANDOMLY WITH NO WARNING OR BEEP. CLOSES VERY QUICKLY AND HITS
NHTSAUSSept 2024Source →
MERCEDES-BENZ GLC 300 2024 SEAT BELTS
low
Passenger backseat seatbelt would not release under any circumstance. I tried turning the car off and on again. Checking settings on the screen and even releasing the seat a bit. Pushing the red butto
NHTSAUSSept 2024Source →
MERCEDES-BENZ GLC 300 2024 SERVICE BRAKES
high
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
NHTSAUSJul 2024Source →
MERCEDES-BENZ GLC 300 2024 POWER TRAIN
low
When stopped at a light or stop sign, Vehicle will Jerk forward as If hit from behind. Very surprising and dangerous. Very intermittent. The has happened many times. Vehicle will at times have rou
NHTSAUSJul 2024Source →
MERCEDES-BENZ GLC 300 2024 VISIBILITY/WIPER
medium
I purchased the car brand new from my local dealership and 3 months after purchase my windshield cracked. I had the entire windshield replaced with an OEM windshield on 5/7/2024 and yesterday I got an
NHTSAUSJun 2024Source →