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Service bulletin NCU-2023060007

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10238431
Published by NHTSA2023-07-03
Manufacturer's numberNCU-2023060007
Manufacturer's date2023-06-16
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; ENGINE AND ENGINE COOLING

NHTSA's summary

Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2023 GLC (254 platform) vehicles, the powertrain control unit software might not meet current specifications. Under certain conditions, it may not be possible to start the vehicle. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealership will update the powertrain control unit software in the affected vehicles.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Transmission and driveline, Automatic transmission, Transmission control module

Vehicles listed
MERCEDES-BENZ GLC 3002023

Listing a model year does not mean every vehicle of it is concerned: the document says which.