Check a VIN

September 27, 2025 Service bulletin

Security Gateway Module (SGW) Software Update Customers may experience one or more of the following: ● SGW...

Ram technical service bulletin 08-322-25 for 2026 Ram 3500.

Bulletin number
08-322-25
Component
Electrical system
Summary
Security Gateway Module (SGW) Software Update Customers may experience one or more of the following: ● SGW module is not responding to diagnostics and showing offline. ● If message for FOTA apprears, then a manual flash is required for SGW update. ● Diagnostic Trouble Code (DTC) U3033 - 00 Control module security certificate Missing/Invalid is active or stored and cannot clear. This DTC will not turn on the Malfunction Indicator Light (MIL). This bulletin involves flashing the SGW to the latest software level in the case that the FOTA did not function.

Owners of these vehicles have filed 19 complaints in the electrical category.

Vehicles covered

VIN decoder

See the problems and recalls for an exact car

Buying a used Ram 3500?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history