{"nhtsa_id":10224301,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-17","date":"2022-09-27","document_id":"PIT5949","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; AIR BAGS","mfr_system":null,"summary":"This Preliminary information communicates an issue during start up that the following symptoms occur: - Service Safety Restraints System Message - Sunroof Inoperative - Sunshade Lights Inoperative - Dome Lights Inoperative - Power Liftgate Inoperative when using switch in overhead console - DTCs U1121 set in the BCM and B1A7A set in the Restraints Module Engineering is currently working on a fix and in the meantime a customer can cycle the dome light switch on/off to correct the condition during that ignition cycle.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10224301-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10224301-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10224301","components":[{"id":"air-bags","name":"Air bags","parent":null},{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"body-control-module","name":"Body control module","parent":"electrical"}],"codes":["B1A7A","U1121"],"topics":[],"vehicles":[{"make":"CADILLAC","model":"ESCALADE ESV","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_cadillac_escalade-esv","2022_cadillac_escalade-esv","2023_cadillac_escalade-esv"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_chevrolet_suburban","2022_chevrolet_suburban","2023_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_chevrolet_tahoe","2022_chevrolet_tahoe","2023_chevrolet_tahoe"]},{"make":"GMC","model":"YUKON","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_gmc_yukon"]},{"make":"GMC","model":"YUKON XL","year_from":2021,"year_to":2022,"match":"exact","vehicle_ids":["2021_gmc_yukon-xl","2022_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":[]}