{"nhtsa_id":10145172,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-10-09","date":"2018-08-09","document_id":"18237","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; POWER TRAIN","mfr_system":null,"summary":"18237 - Emission Recall - TCM Software Potential Emissions Noncompliance. - General Motors has decided to conduct a voluntary emissions recall involving certain 2017-2018 model year vehicles equipped with an 8-speed transmission (RPO MRC) that were service programmed with incorrect transmission control module, (TCM) software. Vehicles programmed with this software may, under certain downhill driving conditions, remain stuck in gear or shift up later than expected, after RPMs (Revolutions Per Minute) are already high. This condition can only be cleared by an ignition key cycle (turning the vehicle off and then back on again) or by shifting the vehicle into and out of Neutral. Dealers are to reprogram the TCM.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10145172-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10145172-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10145172","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"XT5","year_from":2017,"year_to":2018,"match":"exact","vehicle_ids":["2017_cadillac_xt5","2018_cadillac_xt5"]}],"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":[]}