{"nhtsa_id":11030538,"type":"over_the_air","type_name":"Over-the-air update","date_added":"2026-04-02","date":"2026-03-21","document_id":"661.20","mfr_campaign":"661.20","replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":"ACP: ACP (ADAS Compute Platform)","summary":"• Improvements to accuracy of Park Assist messaging. • Fixes to improve performance of driver assistance systems and rear view camera. • Improvements to responsiveness of rear view camera. • Fixes to address Super Cruise disengaging erroneously.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030538-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030538-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11030538","components":[],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO EV","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA EV","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["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":[]}