Service bulletins for the 2025 Cadillac Optiq
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.
299 on file from NHTSA, as of 2026-10-19.
About C103D on the 2025 Cadillac Optiq: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: C103D are shown. Show all
| PIC6603A | 2026-01-29. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the technician the direction needed to address a Service headlamp message with DTC C103D sym28. |
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| PIC6603 | 2025-05-05. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the technician the direction needed to address a Service headlamp message with DTC C103D sym28. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.