{"nhtsa_id":11035427,"type":"over_the_air","type_name":"Over-the-air update","date_added":"2026-08-01","date":"2026-07-14","document_id":"662.11","mfr_campaign":"662.11","replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":"PCM: PO2/PCM (Powertrain Control Module)","summary":"• Fixes to help ensure proper functionality for shifting. • Fixes to help protect transmission health. • Improvements to diagnostics to prevent vehicle not starting. • Fixes to help reduce instances of check engine light activation in cold weather.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11035427-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11035427-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11035427","components":[],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"ENCLAVE","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_buick_enclave","2025_buick_enclave"]},{"make":"CHEVROLET","model":"TRAVERSE","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_chevrolet_traverse","2025_chevrolet_traverse"]},{"make":"GMC","model":"ACADIA","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_gmc_acadia","2025_gmc_acadia"]}],"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":[]}