{"nhtsa_id":10222987,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-17","date":"2022-01-15","document_id":"0801422","mfr_campaign":null,"replaces":null,"component":"STEERING; ENGINE AND ENGINE COOLING; EXTERIOR LIGHTING; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Drivetrain Control Module (DTCM) Updates This bulletin involves reprogramming the DTCM with the latest available software. The customer may describe one or more of the following: ?Service 4WD warning? displayed in the Instrument Panel Cluster (IPC). A binding or heavy steering feel when making sharp turns at low speeds. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DiagnosticTrouble Codes (DTCs) have been set:C1423-64 -Transfer Case Internal Performance-Signal Plausibility Failure. C149E-64 - Transfer Case Motor Position Sensor-Signal Plausibility Failure.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10222987-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10222987-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10222987","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"lighting","name":"Lighting","parent":null},{"id":"steering","name":"Steering","parent":null}],"codes":["C1423","C149E"],"topics":[],"vehicles":[{"make":"JEEP","model":"WAGONEER","year_from":2022,"year_to":2022,"match":"exact","vehicle_ids":["2022_jeep_wagoneer"]}],"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":[]}