Verified government source

NHTSA complaint #11536621

This page summarizes an official U.S. National Highway Traffic Safety Administration owner complaint. Use the verification links below to confirm the record directly with NHTSA.

Vehicle

2023 MERCEDES-BENZ GLC300

Manufacturer

Mercedes-Benz USA, LLC

Components

ELECTRICAL SYSTEM,ENGINE

Dates

Incident: 05/18/2023
Filed: 08/05/2023

Owner complaint summary

1 ) the car would not start several times. every error message scanned across the screen and i had to leave the car and lock it and wait 10-15 minutes and then it would start. if i had any type of emergency and this happened, it would be detrimental. the first time this happened was the day i got the car with less than 10 miles on it. this issue was recreated by service and a software update was performed and it hasn’t happened since. 2 ) all computers / screens turned off while the car was in drive and in motion. horrifying and so dangerous. i had no safety features active , as they all display on the two screens. this happened with less than 500 miles on the car. this was not duplicated by service and it happened one time. 3 ) the sunroof malfunctioned and would not close after the software update was performed. i had to bring it back the very next day. this problem was duplicated by service and was repaired. 4 ) today the camera / visibility system malfunctioned giving an error message “ system inoperative “. i drove it to service an hour after it happened. it makes me completely distrust every electronic component of the vehicle which scares me so much to even drive it not knowing if and when safety features will fail. mileage est 1350. i’m not sure if they have duplicated it, as it’s still in the shop. i have videos of the other issues but the form won’t let me upload videos. i uploaded a picture of the 4th issue in my report.

This is an owner complaint filed with NHTSA (ODI #11536621). It is not automatically an official recall, investigation outcome, or manufacturer admission unless the complaint text itself describes one.

Official record ID (ODI): 11536621. This page is the human-readable source link used across afterwarranty. The raw JSON link proxies NHTSA's public API for machine verification; prefer this page when reading the complaint.