{"nhtsa_id":11024551,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-10-29","date":"2025-10-22","document_id":"08-336-25 REV. A","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Security Gateway Module (SGW) Software Update Customers may experience **one or more of **the following: ● **Connectivity services will not work - including WIFI setup, Alexa, live traffic etc. Level 2 Plus functionality also affected/not enabling. ● SGW not responding to diagnostic and showing offline.** ● Wifi cannot be setup. The following software enhancements are also available: ● Diagnostic Trouble Code (DTC) U3033-00 - Control Module Security Certificate Missing/Invalid and **U3033-01 - Control Module Security Certificate Missing/Invalid - General Electrical Failure** are both active or stored and cannot clear. This DTC will not turn on the Malfunction Indicator Light (MIL). ● If a Firmware Over The Air (FOTA) message appears specifically directing the customer to service OR repeated FOTA events are not being completed, then a manual flash is required for the SGW update. ● SGW module is not responding to diagnostics and is showing offline. This bulletin involves **inspecting and possibly** flashing the SGW to the latest software level in the case that the FOTA did not function","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024551-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024551-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11024551","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["U3033"],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_jeep_grand-cherokee"]},{"make":"JEEP","model":"GRAND CHEROKEE 4XE","year_from":2025,"year_to":2025,"match":"base","vehicle_ids":["2025_jeep_grand-cherokee"]},{"make":"JEEP","model":"GRAND CHEROKEE L","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_jeep_grand-cherokee-l"]}],"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":[]}