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Service bulletin 23111

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 id10248304
Published by NHTSA2024-01-04
Manufacturer's number23111
Manufacturer's date2023-12-19
NHTSA componentLANE DEPARTURE; ELECTRICAL SYSTEM

NHTSA's summary

Certain LT and RH series trucks with Lane Keep Assist (LKA) may have outdated software in the LKA Electronic Control Unit (ECU), resulting in false positive fault codes. A software update will resolve this issue.

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

Driver assistance, Electrical system

Vehicles listed
INTERNATIONAL LT2021 to 2024
INTERNATIONAL RH2021 to 2024

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