# C103D on the 2025 Cadillac Optiq

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 C103D

- [11027868](https://open.wenmarpro.com/bulletins/11027868), 2026-01-29: This Preliminary information communicates to the technician the direction needed to address a Service headlamp message with DTC C103D sym28.
- [11017786](https://open.wenmarpro.com/bulletins/11017786), 2025-05-05: This Preliminary information communicates to the technician the direction needed to address a Service headlamp message with DTC C103D sym28.