{"nhtsa_id":11033766,"type":"over_the_air","type_name":"Over-the-air update","date_added":"2026-06-09","date":"2026-06-02","document_id":"654.40","mfr_campaign":"654.40","replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":"ICCM: ICCM (Integrated Chassis Control Module)","summary":"• Fixes to help protect battery health. • Improvements to traction while driving on difficult terrain and using Four-Wheel Drive Low.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033766-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033766-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11033766","components":[],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SUBURBAN 1500","year_from":2025,"year_to":2025,"match":"base","vehicle_ids":["2025_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_chevrolet_tahoe"]},{"make":"GMC","model":"YUKON","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_gmc_yukon"]},{"make":"GMC","model":"YUKON XL","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_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":[]}