{"nhtsa_id":11026842,"type":"over_the_air","type_name":"Over-the-air update","date_added":"2025-12-24","date":"2025-12-03","document_id":"N25-250552","mfr_campaign":"N25-250552","replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":"TCP: TCP (Telematics Communication Platform)","summary":"Improvements to OnStar functionality. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026842-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026842-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11026842","components":[],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"ENCLAVE","year_from":2022,"year_to":2024,"match":"exact","vehicle_ids":["2022_buick_enclave","2023_buick_enclave","2024_buick_enclave"]},{"make":"BUICK","model":"ENCORE","year_from":2024,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"BUICK","model":"ENCORE GX","year_from":2021,"year_to":2026,"match":"exact","vehicle_ids":["2021_buick_encore-gx","2022_buick_encore-gx","2023_buick_encore-gx","2024_buick_encore-gx","2025_buick_encore-gx","2026_buick_encore-gx"]},{"make":"BUICK","model":"ENVISTA","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_buick_envista","2025_buick_envista"]},{"make":"CADILLAC","model":"XT4","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_cadillac_xt4","2022_cadillac_xt4","2023_cadillac_xt4"]},{"make":"CADILLAC","model":"XT5","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_cadillac_xt5","2022_cadillac_xt5","2023_cadillac_xt5","2024_cadillac_xt5","2025_cadillac_xt5"]},{"make":"CADILLAC","model":"XT6","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_cadillac_xt6","2022_cadillac_xt6","2023_cadillac_xt6","2024_cadillac_xt6","2025_cadillac_xt6"]},{"make":"CHEVROLET","model":"BLAZER","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_chevrolet_blazer","2022_chevrolet_blazer","2023_chevrolet_blazer","2024_chevrolet_blazer","2025_chevrolet_blazer"]},{"make":"CHEVROLET","model":"BOLT EV","year_from":2022,"year_to":2023,"match":"exact","vehicle_ids":["2022_chevrolet_bolt-ev","2023_chevrolet_bolt-ev"]},{"make":"CHEVROLET","model":"CAMARO","year_from":2021,"year_to":2024,"match":"exact","vehicle_ids":["2021_chevrolet_camaro","2022_chevrolet_camaro","2023_chevrolet_camaro","2024_chevrolet_camaro"]},{"make":"CHEVROLET","model":"EQUINOX","year_from":2022,"year_to":2024,"match":"exact","vehicle_ids":["2022_chevrolet_equinox","2023_chevrolet_equinox","2024_chevrolet_equinox"]},{"make":"CHEVROLET","model":"MALIBU","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_chevrolet_malibu","2022_chevrolet_malibu","2023_chevrolet_malibu","2024_chevrolet_malibu","2025_chevrolet_malibu"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2021,"year_to":2023,"match":"base","vehicle_ids":["2021_chevrolet_silverado","2022_chevrolet_silverado","2023_chevrolet_silverado"]},{"make":"CHEVROLET","model":"TRAILBLAZER","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_chevrolet_trailblazer","2022_chevrolet_trailblazer","2023_chevrolet_trailblazer","2024_chevrolet_trailblazer","2025_chevrolet_trailblazer"]},{"make":"CHEVROLET","model":"TRAVERSE","year_from":2022,"year_to":2024,"match":"exact","vehicle_ids":["2022_chevrolet_traverse","2023_chevrolet_traverse","2024_chevrolet_traverse"]},{"make":"CHEVROLET","model":"TRAX","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_chevrolet_trax","2025_chevrolet_trax"]},{"make":"GMC","model":"ACADIA","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_gmc_acadia","2022_gmc_acadia","2023_gmc_acadia"]},{"make":"GMC","model":"SIERRA 1500","year_from":2021,"year_to":2023,"match":"base","vehicle_ids":["2021_gmc_sierra","2022_gmc_sierra","2023_gmc_sierra"]},{"make":"GMC","model":"TERRAIN","year_from":2022,"year_to":2024,"match":"exact","vehicle_ids":["2022_gmc_terrain","2023_gmc_terrain","2024_gmc_terrain"]}],"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":[]}