{"nhtsa_id":11034978,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-07-13","date":"2026-07-13","document_id":"PIT6455B","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"This PI communications information that Engineering is investigating the Service Driver Assist message with current DTC B1B2F Telematics Control Module and U1624 Image Processing Control Module setting.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034978-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034978-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11034978","components":[],"codes":["B1B2F","U1624"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2025,"year_to":2026,"match":"base","vehicle_ids":["2025_chevrolet_silverado","2026_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 1500","year_from":2025,"year_to":2026,"match":"base","vehicle_ids":["2025_gmc_sierra","2026_gmc_sierra"]}],"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":[]}