{"nhtsa_id":11034939,"type":"over_the_air","type_name":"Over-the-air update","date_added":"2026-07-08","date":"2026-06-22","document_id":"662.20","mfr_campaign":"662.20","replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":"BCM, PTM, HDLM, SRR, EBCM: BCM (Body Control Module), PTM (Power Tailgate Module), HDLM (High Definition Localization Module), SRR (Short Range Radar), EBCM (Electronic Brake Control Module)","summary":"• The active cabin ventilation feature will operate more reliably • Additional protection for the health of your battery and updates to help prevent excessive battery drain and overheating • Improvements will support successful software updates for your vehicle and allow you to access new features and fixes","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034939-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034939-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11034939","components":[],"codes":[],"topics":[],"vehicles":[{"make":"GMC","model":"HUMMER EV PICKUP","year_from":2024,"year_to":2024,"match":"exact","vehicle_ids":["2024_gmc_hummer-ev-pickup"]},{"make":"GMC","model":"HUMMER EV SUV","year_from":2024,"year_to":2024,"match":"exact","vehicle_ids":["2024_gmc_hummer-ev-suv"]}],"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":[]}