WenmarOpen by Wenmar Pro

Service campaign NCU - 2024120012

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 campaign
NHTSA id11012132
Published by NHTSA2025-01-02
Manufacturer's numberNCU - 2024120012
Manufacturer's date2024-12-20
NHTSA componentPOWER TRAIN

NHTSA's summary

Replace automatic transmission. For basic data of model 254 with M254, see AR27.10-P-0005MRW For basic data on transmission oil level test routine, see AR27.00-P-0270EWN.

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

Transmission and driveline

Vehicles listed
MERCEDES-BENZ AMG GLC432024
MERCEDES-BENZ AMG GLC63 S E2024
MERCEDES-BENZ GLC 3002024
MERCEDES-BENZ GLC 300 COUPE2024

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