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Service campaign C7263

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 id11033248
Published by NHTSA2026-06-03
Manufacturer's numberC7263
Manufacturer's date2026-05-19
Campaign id or software versionC7263
NHTSA componentFUEL/PROPULSION SYSTEM

NHTSA's summary

This Warranty Field Campaign describes the inspection and repair steps for the high voltage battery packs of the battery electric system which may feature damage to the corner brackets, damage to the lid, fasteners requiring the application of thread locker on the top coolant port, bottom coolant port, high-voltage negative PowerLok connector and high-voltage positive PowerLok connector, vent ports which require tightening and newly-designed OEM mounting brackets which need to be replaced.

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

Fuel system

Vehicles listed
CUMMINS BES

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