{"nhtsa_id":10139656,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-11","date":"2014-04-30","document_id":"21-016-14","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","mfr_system":null,"summary":"Flash: Transmission Shift Enhancements This bulletin involves flash reprogramming of the Transmission Control Module (TCM) with new software. The customer may indicate that they may have experienced any of the following: ? 4x4 Low Mode shift quality during a medium to heavy throttle ? MIL Illumination for DTC P215C - OUTPUT SHAFT SPEED WHEEL SPEED CORRELATION In addition, calibration changes have been made in the following areas to improve: ? Powertrain braking while in Tow/Haul mode ? Downshift response from a medium to heavy pedal ? Drivability at high altitude ? Acceleration performance during cruise control operation This calibration release also corrects a condition where DTC U11C3 may have been displayed when DTC U11E3 should have been displayed resulting in a possible misdiagnosis.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10139656-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10139656-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10139656","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P215C","U11C3","U11E3"],"topics":[],"vehicles":[{"make":"RAM","model":"1500","year_from":2014,"year_to":2014,"match":"exact","vehicle_ids":["2014_ram_1500"]}],"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":[]}