{"nhtsa_id":10147329,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-13","date":"2018-09-13","document_id":"18248","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL","mfr_system":null,"summary":"18248 - Service Update - Certain 2018 Buick Regal vehicles with C4 clusters and RPO IOT radios do not provide a ?Speed Sign? in the cluster display. This feature needs to be calibrated onto the radio. Vehicle needs to be re-calibrated to add ?Speed Sign? to IOT radio.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10147329-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10147329-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10147329","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"instrument-cluster","name":"Instrument cluster","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"REGAL","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_buick_regal"]}],"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":[]}