{"nhtsa_id":11027868,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-01-29","date":"2026-01-19","document_id":"PIC6603A","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"This Preliminary information communicates to the technician the direction needed to address a Service headlamp message with DTC C103D sym28.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11027868-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11027868-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11027868","components":[],"codes":["C103D"],"topics":[],"vehicles":[{"make":"CADILLAC","model":"OPTIQ","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_cadillac_optiq"]}],"as_of":"2026-10-19","note":"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.","attribution":[]}