2024-2025 Jeep Wrangler FOTA Update Problems (S2508000088)

Owners of 2024-2025 Jeep Wrangler vehicles may experience various issues after a recent Firmware Over The Air (FOTA) update for the Telematics Box Module (TBM). This manufacturer communication, identified as S2508000088, addresses customer complaints ranging from warning lights to driveability concerns.

The Jeep Wrangler FOTA update problems stem from improper messaging between Electronic Control Units (ECUs) following the Uconnect update. A solution has been deployed to address this.

Symptoms

Owners may notice several symptoms after the FOTA update, often displayed on the instrument cluster or affecting vehicle operation. These include:

• Illumination of the "Check Engine Lamp (CEL)".
• A prominent "Shift to Park Message With Multiple Warning Lamps on" on the instrument panel. This is also seen as a shorter "Shift to P" message.
• A "Flashing 'D' on the Shifter", indicating a transmission issue.
• The vehicle may "not Start or go Into Gear".
• If the update occurred while driving, the vehicle might enter a "limp in mode condition with limited throttle response", severely limiting power.
• Other specific instrument panel messages observed include "Performance Limited Stop Safely Shift to Park Wait for Engine to Start" and "E-Drive Mode Temporarily Unavailable".

Fault Codes / DTCs

Technicians may find specific Diagnostic Trouble Codes (DTCs) associated with these Jeep Wrangler FOTA update problems. The document lists the following codes, though specific descriptions for each are not provided in this communication:

Code	Description
P1E1D-00	(No specific description provided)
U0293-00	(No specific description provided)
U0594-00	(No specific description provided)
P0A45-00	(No specific description provided)
P24F0-00	(No specific description provided)
U0411-00	(No specific description provided)

Diagnosis and Trigger Conditions

The root cause for these issues is an improper communication flow between Electronic Control Units (ECUs) following a Uconnect FOTA update. The symptoms typically appear after the Telematics Box Module (TBM) receives this update, indicating a software-related communication error.

Repair Procedure Summary

For vehicles that have already accepted the Uconnect software update and are still exhibiting the described conditions, the following steps should be taken by a qualified technician:

1. Connect to wiTECH: The vehicle must be connected to the wiTECH diagnostic software, a specialized tool used for Stellantis vehicles, to access and manage vehicle systems.
2. Clear DTCs: All stored Diagnostic Trouble Codes (DTCs) must be cleared from the vehicle's various control modules.
3. Confirm Resolution: Drive the vehicle for approximately 30 minutes to confirm that the customer complaint, such as the Jeep Wrangler FOTA update problems, does not return. This driving period helps ensure all systems are functioning correctly and stable after the DTCs are cleared.

For vehicles that have not yet completed the Uconnect Box update and are displaying the update prompt on the radio screen, owners have an option. The screen, titled "Uconnect Box Update", provides important information: "Uconnect Box will be updated. Estimated time of update is 5min. SOS, ASSIST Call, and other features will be unavailable during the update." If the owner chooses not to install this update, they should select the red 'X' icon visible on the top right of this screen to dismiss the prompt and prevent the update from proceeding.

Important Warnings

Owners should be aware that this document, identified as S2508000088, does not authorize warranty repairs. It serves as a record of past experiences and is intended to help technicians diagnose similar issues. The communication emphasizes that it "does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be similar or related to the vehicle symptom / condition." Ultimately, the technician is considered "the expert" and is responsible for deciding on the appropriate course of action.

NHTSA ID: 11024571