{"nhtsa_id":10116601,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-31","date":"2017-02-22","document_id":"16-NA-177","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"This informational bulletin explains DTC U0121 sets due to a software anomaly and does not turn the MIL on or change performance of the vehicle.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10116601-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10116601-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10116601","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":["U0121"],"topics":[],"vehicles":[{"make":"CADILLAC","model":"XT5","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_cadillac_xt5"]},{"make":"CHEVROLET","model":"BOLT EV","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_chevrolet_bolt-ev"]},{"make":"GMC","model":"ACADIA","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_gmc_acadia"]}],"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":[]}