# Service bulletin T7303

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.

- Type: Service bulletin
- NHTSA id: 11037915
- Published by NHTSA: 2026\-10\-05
- Manufacturer's number: T7303
- Manufacturer's date: 2026\-09\-23
- NHTSA component: ENGINE

## NHTSA's summary

This Temporary Repair Practice is being issued to address failures related to fault code 1894 and 5177 caused by Turbocharger \(VGT\) Actuator Calibration on certain B6.7, X12 and X15 MY2024 certified engines. This field action authorizes certified repair locations to update calibration to the Turbocharger \(VGT\) Actuator.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037915-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037915-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- CUMMINS B6.7
- CUMMINS X12
- CUMMINS X15

JSON: [/v1/bulletins/11037915](/v1/bulletins/11037915)

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