{"nhtsa_id":10181137,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-10-19","date":"2020-09-11","document_id":"PIT5759D","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"This Preliminary information communicates an issue with the SIR MIL turning on and DTC B14DC setting. Engineering is root causing the concern.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10181137-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10181137-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10181137","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B14DC"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SUBURBAN","year_from":2021,"year_to":2021,"match":"exact","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 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":[]}