2025 Mercedes-Benz GLC 350 E 4MATIC Electrical Problems

I own a 2025 Mercedes-Benz GLC 350e plug-in hybrid. The vehicle experienced a complete loss of both the digital instrument cluster/display in front of the driver and the center MBUX infotainment display. Both screens remained completely black even after the vehicle was started and placed in READY mode. The vehicle was still capable of being driven, but the driver instrument display was completely unavailable. As a result, I could not see critical information normally provided through the instrument cluster, including vehicle speed, warning messages, system status, and other important vehicle information. At the same time, there was recurring static/electrical-type noise coming through the vehicle’s speakers at regular intervals. The vehicle was shut down, locked, and allowed to power down before being restarted, but this did not restore either display. This is a significant safety concern because the vehicle can remain operational and driveable while the entire driver instrument display is unavailable. A driver should not have to operate a vehicle without access to the instrument cluster or critical warnings. I am reporting this issue to NHTSA because I believe a complete loss of the instrument cluster and center display while the vehicle remains driveable presents a potential safety defect. I request that NHTSA investigate whether this is a recurring problem affecting the 2025 Mercedes-Benz GLC 350e and whether a safety-related remedy or recall is warranted.

NHTSA ID

11765412

Incident

Sep 18, 2026

My 2025 Mercedes-Benz GLC 350e displayed a “48V battery malfunction” warning on or about July 1, 2026, while the vehicle was less than one year old. The vehicle was taken to an authorized Mercedes-Benz dealership and remained there until approximately July 20. Mercedes-Benz USA became involved, and the dealership ultimately stated that the malfunction had been corrected through a software update. The 48V battery was not replaced. I have not received documentation clearly identifying the specific software update, campaign, operation number, underlying failure mechanism, or pre- and post-repair diagnostic results establishing that the reported malfunction was caused and resolved by software. I am therefore unable to determine whether the battery or another component of the 48V system was defective, or whether the warning was merely cleared. In late August, I also heard a new and pronounced whirring sound near the left-front area of the vehicle after charging. A different authorized dealership charged the high-voltage battery to 100%, attempted to reproduce the sound, and found no charging-system fault codes or abnormal noise. It characterized the sound as normal post-charge cooling operation and performed no repair. I am submitting this complaint because of the original 48V malfunction, the lack of documentation identifying exactly what failed and what software remedy was performed, and the possible relevance to a previously closed NHTSA investigation involving Mercedes-Benz battery-related concerns. Please associate this complaint with any applicable closed investigation and evaluate whether this incident constitutes additional relevant field evidence.

NHTSA ID

11761658

Incident

Jul 1, 2026

The contact owns a 2025 Mercedes-Benz GLC350E 4MATIC. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 26V281000 (Electrical System); but the recall repair failed to prevent a failure. The contact stated that while starting the vehicle, the instrument panel display was inoperable. The failure was a recurring failure. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 12,540.

NHTSA ID

11747977

Incident

Apr 30, 2026

Mileage

12,540 mi

The contact owns a 2025 Mercedes-Benz GLC 350E. The contact stated that while driving approximately 60 MPH, the vehicle began decelerating, losing drive power till the vehicle stalled. The contact turned on their hazards and had the vehicle towed to the dealer. The Check Engine, Blind Assist, Exit Warning Inoperative, Towing Not permitted, with several other warning or failure lights illuminated. The failure occurred twice. The dealer diagnosed that the ignition unit had failed. The vehicle was repaired; however, the failure occurred again. The vehicle was returned to the dealer diagnosed that the motor for the instrument panel had failed and needed to be replaced. The vehicle was repaired, but the contact was not sure if the failure was resolved. The manufacturer was informed of the failure, and a case was opened. The failure mileage was approximately 10,000.

NHTSA ID

11735471

Incident

Apr 4, 2026

Mileage

10,000 mi

Screens went blank/Black on three separate occasions requiring towing to Dealership; This included no speedometer or backup camera function making it unsafe to drive; Dealer each time stated that they updated software to resolve. The third incident was Nov 21,2025

NHTSA ID

11705822

Incident

Nov 21, 2025

Hatch closes on your head while loading groceries into the vehicle. The kick sensor is activated by the movements that a person naturally makes when loading cargo into a vehicle. It happens to pretty-much everyone who has ever loaded groceries into the car. There is no way to disable it, per the dealer.

NHTSA ID

11686583

Incident

Sep 11, 2025

The contact owns a 2025 Mercedes-Benz GLC 350E 4Matic. The contact stated that while driving at various speeds, the infotainment system and the instrument panel turned black. The contact stated that the failure was intermittent. The vehicle was taken to the dealer, where it was diagnosed with a software glitch. The software was updated; however, the failure recurred. The vehicle was taken to Mercedes-Benz in Englewood (28 Grand Ave, Englewood, NJ 07631), where the assessment was confirmed. The software was updated; however, the failure persisted. The contact stated that the vehicle had been rebooted several times as per dealer instructions; however, the reboot took up to an hour. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The contact was referred to a dealer for rental vehicle assistance. The failure mileage was approximately 1,000.

NHTSA ID

11680626

Incident

Feb 22, 2025

Mileage

1,000 mi

All touch screens went black wihout any warning. Was not able to see speedometer or any of the other onscreen functions for the vehicle. Car was drivable however, the signal lights horn and basic electrical funtions did not work

NHTSA ID

11652374

Incident

Mar 18, 2025