{"nhtsa_id":11030934,"type":"service_campaign","type_name":"Service campaign","date_added":"2026-04-07","date":"2026-03-28","document_id":"34-100","mfr_campaign":"34-100","replaces":null,"component":"EXTERIOR LIGHTING","mfr_system":null,"summary":"Halogen Headlamp Operation -Activating the Flash to Pass system on certain [Kenworth / Peterbilt] vehicles may cause one headlamp to deactivate.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030934-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030934-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11030934","components":[{"id":"lighting","name":"Lighting","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"T380","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_kenworth_t380"]},{"make":"KENWORTH","model":"T680","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_kenworth_t680"]},{"make":"KENWORTH","model":"T880","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_kenworth_t880"]},{"make":"KENWORTH","model":"W990","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_kenworth_w990"]}],"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":[]}