{"nhtsa_id":11032930,"type":"over_the_air","type_name":"Over-the-air update","date_added":"2026-05-26","date":"2026-05-22","document_id":"661.30","mfr_campaign":"661.30","replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":"BCM, EBCM: BCM (Body Control Module), EBCM (Electronic Brake Control Module)","summary":"• Improvements to traction and stability control on uneven terrain • Improvements to braking performance on low-traction surfaces • Improvements to assisted braking • Improvements to active cabin ventilation • Additional protection for the health of your battery • Updates to help prevent excessive battery drain and overheating • Improvements to the software update system","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11032930-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11032930-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11032930","components":[],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"BOLT EV","year_from":2027,"year_to":2027,"match":"base","vehicle_ids":["2027_chevrolet_bolt"]}],"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":[]}