# U1146 on the 2026 Mack Anthem

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name U1146

- [11035501](https://open.wenmarpro.com/bulletins/11035501), 2026-08-03: CBR \- The purpose of this CBR is to provide guidance on fault code U114688.
- [11028049](https://open.wenmarpro.com/bulletins/11028049), 2026-02-03: CBR \- U114688 VMCU Communication Fault \- AN \(4\) \- PR \(4\).