{"nhtsa_id":11025459,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-11-10","date":"2025-11-07","document_id":"PIT6450","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"This preliminary information communicates an issue with a Service Brake system message and DTC C0597. Dealers are to replace the brake master cylinder.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11025459-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11025459-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11025459","components":[],"codes":["C0597"],"topics":[],"vehicles":[{"make":"CADILLAC","model":"ESCALADE","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE ESV","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_cadillac_escalade-esv"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SUBURBAN 1500","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_chevrolet_tahoe"]},{"make":"GMC","model":"SIERRA 1500","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_gmc_sierra"]},{"make":"GMC","model":"YUKON","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_gmc_yukon"]},{"make":"GMC","model":"YUKON XL","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_gmc_yukon-xl"]}],"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":[]}