{"nhtsa_id":11030522,"type":"over_the_air","type_name":"Over-the-air update","date_added":"2026-04-02","date":"2026-03-26","document_id":"661.10","mfr_campaign":"661.10","replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":"TCP: TCP (Telematics Connectivity Platform)","summary":"• Fixes to help prevent false Service Driver Assist System messages. • Improvements to connectivity for OnStar.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030522-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030522-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11030522","components":[],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"ESCALADE","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_cadillac_escalade","2024_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE ESV","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_cadillac_escalade-esv","2024_cadillac_escalade-esv"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_chevrolet_suburban","2024_chevrolet_suburban"]},{"make":"CHEVROLET","model":"SUBURBAN 1500","year_from":2023,"year_to":2024,"match":"base","vehicle_ids":["2023_chevrolet_suburban","2024_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_chevrolet_tahoe","2024_chevrolet_tahoe"]},{"make":"GMC","model":"YUKON","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_gmc_yukon","2024_gmc_yukon"]},{"make":"GMC","model":"YUKON XL","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_gmc_yukon-xl","2024_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":[]}