NHTSA Complaint #11634240 — 2021 MERCEDES-BENZ GLS450

ELECTRICAL SYSTEM issue reported to NHTSA

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Complaint Details

ODI Number	11634240
Vehicle	2021 MERCEDES-BENZ GLS450
Component	ELECTRICAL SYSTEM
Date of Incident	January 4, 2025
Date Filed	January 5, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	NY

Consumer Description

System malfunctioned detail: 48v battery malfunction, 12v battery malfunction. Safety concern: I was driving on [XXX] , the battery malfunction warning suddenly pop up, and I couldn't accelerate my car beyond 30 MPH, my whole family were on the car during that time. it's life threatening issue needs to be addressed. Luckily we managed to pull over to a safe border way. It's first time I encountered this issue, but on [XXX] , seems like many people encountered it. Dealer is inspecting the issue currently. orange warning msg pop up first says "48v battery malfunction", few minutes later become red warning msg, while I pulled my car to the sideway, it became red "12v battery malfunction". INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

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