{"nhtsa_id":10230923,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-02-02","date":"2023-01-11","document_id":"KC-2107","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL","mfr_system":null,"summary":"\"Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer\"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10230923-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10230923-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10230923","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"MACK","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"VOLVO","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"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":[]}