{"nhtsa_id":11031717,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-29","date":"2026-04-20","document_id":"PIT6507","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"This PI communicates information on a SPS programming issue causing Serial Data Authentication Configuration to fail.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031717-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031717-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11031717","components":[],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"ENVISION","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_buick_envision"]},{"make":"CADILLAC","model":"CT4","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_cadillac_ct4"]},{"make":"CADILLAC","model":"CT5","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_cadillac_ct5"]},{"make":"CADILLAC","model":"ESCALADE","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE ESV","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_cadillac_escalade-esv"]},{"make":"CHEVROLET","model":"CORVETTE","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_chevrolet_corvette"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_chevrolet_suburban"]},{"make":"CHEVROLET","model":"SUBURBAN 1500","year_from":2021,"year_to":2021,"match":"base","vehicle_ids":["2021_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_chevrolet_tahoe"]},{"make":"GMC","model":"YUKON","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_gmc_yukon"]},{"make":"GMC","model":"YUKON XL","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_gmc_yukon-xl"]}],"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":[]}