{"nhtsa_id":11036348,"type":"service_campaign","type_name":"Service campaign","date_added":"2026-08-26","date":"2026-08-26","document_id":"N252516700-01","mfr_campaign":"N252516700-01","replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"The Battery Energy Control Module (BECM) in certain vehicles include battery-monitoring software. An update is available for this software that improves the BECM’s ability to detect moisture inside the RESS enclosure. Dealers are to reprogram the BECM with the updated software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036348-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036348-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11036348","components":[],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"ESCALADE IQ","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_cadillac_escalade-iq","2026_cadillac_escalade-iq"]},{"make":"CHEVROLET","model":"SILVERADO 4500","year_from":2019,"year_to":2019,"match":"base","vehicle_ids":["2019_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO EV","year_from":2025,"year_to":2026,"match":"base","vehicle_ids":["2025_chevrolet_silverado","2026_chevrolet_silverado"]},{"make":"GMC","model":"HUMMER EV PICKUP","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_gmc_hummer-ev-pickup","2026_gmc_hummer-ev-pickup"]},{"make":"GMC","model":"HUMMER EV SUV","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_gmc_hummer-ev-suv","2026_gmc_hummer-ev-suv"]},{"make":"GMC","model":"SIERRA EV","year_from":2025,"year_to":2026,"match":"base","vehicle_ids":["2025_gmc_sierra","2026_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":[]}