{"nhtsa_id":10139601,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-11","date":"2014-09-05","document_id":"21-027-14","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","mfr_system":null,"summary":"Flash: MIL Illumination For P0733, P061B, P1DB8 This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software. The following Transmission Control Module (TCM) calibration improvements are available. ? P0733 Gear 3 Shift Incorrect Ratio ? P061B Internal Control Module Torque Calculation Performance ? P1DB8 Due to erroneous DTC ? Improved downshift response in Adaptive Cruise Control (ACC) operation when there is a driver override.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10139601-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10139601-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10139601","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P061B","P0733","P1DB8"],"topics":[],"vehicles":[{"make":"JEEP","model":"CHEROKEE","year_from":2014,"year_to":2015,"match":"exact","vehicle_ids":["2014_jeep_cherokee","2015_jeep_cherokee"]}],"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":[]}