{"nhtsa_id":10125996,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-12-22","date":"2016-12-05","document_id":"GCUS-3-778","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","mfr_system":null,"summary":"16159 Service Update. On certain vehicles with an 8-speed transmission (MRC), under certain downhill driving conditions, these vehicles may inappropriately remain in a mode of delayed upshifts that can only be exited on an ignition key cycle or gear selector shift to neutral. Dealers are to reprogram the transmission control module.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10125996-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10125996-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10125996","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"LACROSSE","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_buick_lacrosse"]}],"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":[]}