{"nhtsa_id":11033006,"type":"over_the_air","type_name":"Over-the-air update","date_added":"2026-05-29","date":"2026-05-27","document_id":"661.40","mfr_campaign":"661.40","replaces":null,"component":"UNKNOWN OR OTHER; FUEL/PROPULSION SYSTEM","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. • Reduces unnecessary service messages, check engine light activations, and OnStar calls from your vehicle.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033006-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033006-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11033006","components":[{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"LYRIQ","year_from":2023,"year_to":2026,"match":"exact","vehicle_ids":["2023_cadillac_lyriq","2024_cadillac_lyriq","2025_cadillac_lyriq","2026_cadillac_lyriq"]}],"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":[]}