{"nhtsa_id":11031128,"type":"over_the_air","type_name":"Over-the-air update","date_added":"2026-04-07","date":"2026-03-31","document_id":"661.10","mfr_campaign":"661.10","replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":"VICM: VICM (Vehicle Integration Control Module)","summary":"• Improvements to diagnostics and service messaging for battery health, particularly in humid conditions. • Improvements to transmission diagnostics used for shifting. • Improvements to charging system diagnostics. • Fixes to help protect EV adapter from overheating while charging.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031128-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031128-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11031128","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":[]}