{"nhtsa_id":10183078,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-11-30","date":"2020-10-10","document_id":"08-094-20","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); EQUIPMENT","mfr_system":null,"summary":"Flash: Drivetrain Control Module (DTCM) Update This bulletin involves reprogramming the DTCM with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set::If the customer has any concerns with the transfer case or if the tech performs any repairs on the transfer case, the software must be updated.C140E - Transfer Case Motor Blocked. If DTC C140E is present, follow normal diagnostic procedures before updating the DTCM.In addition the customer may describe the following:The ?Service 4WD? message/fault is displayed in the Instrument Panel Cluster (IPC). Transfer case shift fork tabs broken during range shift. Noisy (clunking/ratcheting) transfer case range shifts. Failure to complete transfer case range shifts. The following software enhancement is available:This update will help reduce premature transfer case failure.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10183078-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10183078-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10183078","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"transfer-case","name":"Transfer case","parent":"powertrain"}],"codes":["C140E"],"topics":[],"vehicles":[{"make":"RAM","model":"1500","year_from":2016,"year_to":2020,"match":"exact","vehicle_ids":["2016_ram_1500","2017_ram_1500","2018_ram_1500","2019_ram_1500","2020_ram_1500"]},{"make":"RAM","model":"2500","year_from":2016,"year_to":2020,"match":"exact","vehicle_ids":["2016_ram_2500","2017_ram_2500","2018_ram_2500","2019_ram_2500","2020_ram_2500"]},{"make":"RAM","model":"3500","year_from":2016,"year_to":2020,"match":"exact","vehicle_ids":["2016_ram_3500","2017_ram_3500","2018_ram_3500","2019_ram_3500","2020_ram_3500"]},{"make":"RAM","model":"4500","year_from":2016,"year_to":2020,"match":"exact","vehicle_ids":["2016_ram_4500","2017_ram_4500","2018_ram_4500","2019_ram_4500","2020_ram_4500"]}],"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":[]}