{"nhtsa_id":10140172,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-11","date":"2016-04-01","document_id":"21-001-16 REV. B","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. 2.4L Engine (Sales Code ED6/ED8) Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) stored in the TCM memory: · P061B - Internal Control Module Torque Calculation Performance. In addition, some customers may experience one or more of the following conditions: · ** 5-4 coast down transmission shift quality enhancement.** · Less than desired low speed drivability and response to accelerator pedal input. · Less than desired transmission shift quality. · Transmission is slow to upshift after releasing the accelerator pedal. 3.2L Engine (Sales Code EHK) Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) stored in the TCM memory: · P061B - Internal Control Module Torque Calculation Performance. In addition, some customers may experience one or more of the following conditions: · ** 5-4 coast down transmission shift quality enhancement.** · Less than desired low speed drivability and response to accelerator pedal input. · Less than desired transmission shift quality. · Less than optimal transmission shift timing, driving up and down hills. · Less than desired Engine Stop/Start re-engagement or smoothness. · Transmission is slow to upshift after releasing the accelerator pedal.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10140172-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10140172-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10140172","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P061B"],"topics":[],"vehicles":[{"make":"JEEP","model":"CHEROKEE","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_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":[]}