{"nhtsa_id":11026673,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-12-17","date":"2025-12-10","document_id":"08-396-25","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Drivetrain Control Module (DTCM) Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● C1403 - 92 Transfer Case Range Position Sensor - Performance Or Incorrect Operation. ● U0403 - 00 Implausible Data Received From Transfer Case. Customers may experience the following: ● Service 4WD Light On in Instrument Panel Control (IPC) This bulletin involves replacing the DTCM.Drivetrain Control Module (DTCM) Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● C1403 - 92 Transfer Case Range Position Sensor - Performance Or Incorrect Operation. ● U0403 - 00 Implausible Data Received From Transfer Case. Customers may experience the following: ● Service 4WD Light On in Instrument Panel Control (IPC) This bulletin involves replacing the DTCM.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026673-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026673-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11026673","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["C1403","U0403"],"topics":[],"vehicles":[{"make":"DODGE","model":"DURANGO","year_from":2018,"year_to":2025,"match":"exact","vehicle_ids":["2018_dodge_durango","2019_dodge_durango","2020_dodge_durango","2021_dodge_durango","2022_dodge_durango","2023_dodge_durango","2024_dodge_durango","2025_dodge_durango"]},{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2018,"year_to":2021,"match":"exact","vehicle_ids":["2018_jeep_grand-cherokee","2019_jeep_grand-cherokee","2020_jeep_grand-cherokee","2021_jeep_grand-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":[]}