{"nhtsa_id":10168702,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-12-04","date":"2019-11-07","document_id":"26-032","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Non-Safety Campaign: New transmission calibrations are available to reduce overspeed errors that occur during downshifts.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10168702-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10168702-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10168702","components":[{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PACCAR","model":"TRANSMISSION","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":[]}