2025 Mercedes-Benz GLC 300 problems
NHTSA has received 33 complaints about the 2025 Mercedes-Benz GLC 300, and 39% of them involve electrical system. After that come forward collision avoidance (12%) and engine (9%).
At a glance
- Complaints
- 33 filed with NHTSA
- Most reported
- Electrical system 39% of complaints
- Crashes and fires
- 9 and 0
- Injuries and deaths
- 2 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%.
What the data shows
Safety-related details: 9 complaints mention a crash; 2 injuries reported. Its complaints are more severe on average than those of 86% of model years in our database.
Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2025 ranks 10th 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 3 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.
In multiple incidents, the tailgate has begun to close while I am loading or unloading items from the trunk, hitting me in the head. My natural reaction is to lift up, causing injury to my neck. The dealer unsuccessfully "fixed" the problem. Additionally, and unrelated to the closing problem, on multiple occasions, upon pushing the close button on the tailgate when it was in an open position, the tailgate reaches the floor of the trunk, then without locking, opens about one (1) foot.
The brakes did not function at all. Upon trying to brake, the brake pedal was hard and the car would not stop. The car went into s storefront where the cashier is located and could have resulted in serious injury or death to anyone waiting to pay at the store. The forward collision alarm did not sound, the dashboard indicator for an impending forward collision did not illuminated. The car did not slow down or stop to avoid the collision. The car is currently at the body shop.
The contact owns a 2025 Mercedes-Benz GLC 300. The contact stated that while her husband was driving at 5 to 10 MPH attempting to park the vehilce lunged forward traveling 20 feet and crashed into the house. The air bags deployed. No warning lights were illuminated , There was no injuries or fire. A police report was filed. The gas company was on the scene due to a gas leak. Additionally the vehilce was serviced for electrical issues.