2021-2026 Ram, Jeep, Dodge Uconnect Box Service DTCs

Owners of various 2021-2026 Ram, Jeep, and Dodge vehicles may encounter a "Uconnect Box Requires Service, Please Visit an Authorized Dealer" message displayed on their vehicle's infotainment screen. This Uconnect Box Service message is often accompanied by specific Diagnostic Trouble Codes (DTCs) and can lead to a loss of functionality for features like SOS or call assist. This issue is addressed in Stellantis STAR Online Publication S268A000008, released in February 2026.

This bulletin clarifies that the problem stems from a communication fault between the Radio and the Telematics Box Module (TBM), rather than the media hub itself. Understanding this distinction is crucial for proper diagnosis and repair.

Symptoms

If your vehicle is affected, you will typically see the "Uconnect Box Requires Service, Please Visit an Authorized Dealer" message on the display. An example of this is shown in Figure 1 of the original document, where the message "Uconnect Box Error" is also visible. Along with this Uconnect Box Service message, you might also experience a loss of functionality for critical services such as SOS or call assist.

Fault Codes / Diagnostic Trouble Codes (DTCs)

Technicians diagnosing this issue will likely find one or more of the following DTCs stored in the vehicle's system:

• B1498-13: USB Hub-Circuit Open
• B1498-19: USB Hub Overcurrent
• B1570-93: USB Communication No Operation

These codes specifically point to issues with the USB communication pathway involving the Uconnect Box system.

Important Warnings for Owners

It is critical for owners and technicians to understand that the media hub should not be replaced to resolve this issue. The bulletin explicitly states, "Do not replace Media Hub, check the USB wiring between TBM and Radio for a possible open or short." The current service procedure may misguide technicians into replacing the media hub, which will not resolve the underlying communication fault between the Radio and the Telematics Box Module (TBM).

Diagnosis and Trigger Conditions

The Uconnect Box Service message and associated DTCs are triggered by a communication fault. This fault occurs between the vehicle's Radio and the Telematics Box Module (TBM). The USB wiring connecting these components, which also branches to the Media Hub, is the key area of concern.

To diagnose the issue, a technician will first verify the presence of DTCs B1498-13, B1498-19, and/or B1570-93. After clearing these codes, the system will be retested after an ignition cycle to see if they return. Additionally, technicians will scan for any other related communication or network codes that might indicate broader harness or module problems.

Repair Procedure Summary

The repair outlined in Stellantis STAR Online Publication S268A000008 focuses on inspecting and verifying the integrity of the communication circuit, rather than replacing components prematurely. The steps involve:

1. Verify DTCs: Confirm the presence of B1498-13, B1498-19, and/or B1570-93. Clear the codes and retest after an ignition cycle to ensure they are active. This helps confirm the Uconnect Box Service message is due to these specific issues.
2. Check for Related DTCs: Scan the vehicle for any additional communication or network codes. These might indicate a more extensive problem with the wiring harness or other modules.
3. Inspect Circuit Integrity: Thoroughly inspect the wiring harness connections at both the Radio and the Telematics Box Module (TBM). Technicians will look for any signs of damage, pinched wires, bent pins, corrosion, or loose fit. Continuity and voltage checks will be performed on the communication lines to ensure proper electrical flow.
4. Module Reset: Power cycle the vehicle to reset both the Radio and TBM modules. After the reset, the technician will verify if the DTCs return, indicating whether the communication fault has been resolved.

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NHTSA ID: 11029704 Source: manufacturer_communication