Technical Service Bulletin 08-326-25 — 2025 RAM 4500
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | 08-326-25 |
| Manufacturer | |
| Vehicle | 2025 RAM 4500 |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin 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.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2025 RAM 4500
08-017-26 REV.A
ELECTRICAL SYSTEM
08-021-26
SERVICE BRAKES
76C Combo
ELECTRICAL SYSTEM
S2610000001
SEAT BELTS
21-002-26
POWER TRAIN
S2508000096
ELECTRICAL SYSTEM
08-326-25 REV. A
ELECTRICAL SYSTEM
08-343-25
ELECTRICAL SYSTEM
21-039-25
POWER TRAIN
08-166-25 REV. A
ELECTRICAL SYSTEM