{"nhtsa_id":11031809,"type":"over_the_air","type_name":"Over-the-air update","date_added":"2026-04-30","date":"2026-04-10","document_id":"661.21","mfr_campaign":"661.21","replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":"AMP, AOS, TCM: AMP (Amplifier), AOS (Automatic Occupant Sensing Module), TCM (Transmission Control Module)","summary":"• Improvements to audio quality when using Google Assistant. • Fixes to help ensure successful vehicle software updates. • Improvements to shifting performance and fewer check engine light activations.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031809-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031809-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11031809","components":[],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"CORVETTE CONVERTIBLE","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_chevrolet_corvette"]},{"make":"CHEVROLET","model":"CORVETTE CONVERTIBLE E-RAY","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_chevrolet_corvette"]},{"make":"CHEVROLET","model":"CORVETTE COUPE","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_chevrolet_corvette"]},{"make":"CHEVROLET","model":"CORVETTE COUPE E-RAY","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_chevrolet_corvette"]}],"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":[]}