{"nhtsa_id":11027623,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-01-14","date":"2026-01-07","document_id":"08-002-26","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Drivetrain Control Module (DTCM) Updates Customers may experience one or more of the following: ● Rear axle bind during slow speed turning. Feels like the 4WD is active. ● While moving above 5 kph (3.1 mph) transmission goes into limp mode This bulletin involves reprogramming the DTCM with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11027623-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11027623-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11027623","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND WAGONEER","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_jeep_grand-wagoneer"]},{"make":"JEEP","model":"WAGONEER","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_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":[]}