{"nhtsa_id":11023484,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-10-02","date":"2025-05-16","document_id":"23-NA-151","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM","mfr_system":null,"summary":"This service bulletin and criteria within are to determine the internal state of the High Voltage Battery and core return shipping method.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11023484-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11023484-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11023484","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BRIGHTDROP","model":"EV600","year_from":2022,"year_to":2022,"match":null,"vehicle_ids":[]},{"make":"BRIGHTDROP","model":"ZEVO 400","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_brightdrop_zevo"]},{"make":"BRIGHTDROP","model":"ZEVO 600","year_from":2023,"year_to":2024,"match":"base","vehicle_ids":["2023_brightdrop_zevo","2024_brightdrop_zevo"]},{"make":"CADILLAC","model":"CELESTIQ","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_cadillac_celestiq"]},{"make":"CADILLAC","model":"ESCALADE ESV IQ","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_cadillac_escalade-esv"]},{"make":"CADILLAC","model":"ESCALADE ESV IQL","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_cadillac_escalade-esv"]},{"make":"CADILLAC","model":"ESCALADE IQ","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_cadillac_escalade-iq"]},{"make":"CADILLAC","model":"LYRIQ","year_from":2023,"year_to":2025,"match":"exact","vehicle_ids":["2023_cadillac_lyriq","2024_cadillac_lyriq","2025_cadillac_lyriq"]},{"make":"CADILLAC","model":"OPTIQ","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_cadillac_optiq"]},{"make":"CADILLAC","model":"VISTIQ","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_cadillac_vistiq"]},{"make":"CHEVROLET","model":"BLAZER EV","year_from":2024,"year_to":2025,"match":"base","vehicle_ids":["2024_chevrolet_blazer","2025_chevrolet_blazer"]},{"make":"CHEVROLET","model":"BRIGHTDROP 400","year_from":2025,"year_to":2025,"match":"base","vehicle_ids":["2025_chevrolet_brightdrop"]},{"make":"CHEVROLET","model":"BRIGHTDROP 600","year_from":2025,"year_to":2025,"match":"base","vehicle_ids":["2025_chevrolet_brightdrop"]},{"make":"CHEVROLET","model":"EQUINOX EV","year_from":2024,"year_to":2025,"match":"base","vehicle_ids":["2024_chevrolet_equinox","2025_chevrolet_equinox"]},{"make":"CHEVROLET","model":"SILVERADO EV","year_from":2024,"year_to":2025,"match":"base","vehicle_ids":["2024_chevrolet_silverado","2025_chevrolet_silverado"]},{"make":"GMC","model":"HUMMER EV PICKUP","year_from":2022,"year_to":2025,"match":"exact","vehicle_ids":["2022_gmc_hummer-ev-pickup","2023_gmc_hummer-ev-pickup","2024_gmc_hummer-ev-pickup","2025_gmc_hummer-ev-pickup"]},{"make":"GMC","model":"HUMMER EV SUV","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_gmc_hummer-ev-suv"]},{"make":"GMC","model":"SIERRA EV","year_from":2024,"year_to":2025,"match":"base","vehicle_ids":["2024_gmc_sierra","2025_gmc_sierra"]}],"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":[]}