{"nhtsa_id":10182566,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-11-16","date":"2020-10-22","document_id":"PIC6416A","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"This Preliminary information communicates to the dealer that if the service AWD (All-Wheel Drive) or AWD (All-Wheel Drive) Off messages are on and there is a history DTC of C15C9 SYM02 set then no repairs are to be made at this time, a software issue was found and Engineering is working on a permanent solution. If the DTC is setting current then published diagnosis needs to be followed.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10182566-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10182566-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10182566","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["C15C9"],"topics":[],"vehicles":[{"make":"BUICK","model":"ENCORE GX","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_buick_encore-gx"]},{"make":"CHEVROLET","model":"TRAILBLAZER","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_chevrolet_trailblazer"]}],"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":[]}