2025 Jeep Wrangler DASM Update for MIL and ACC/FCW Issues

Owners of the 2025 Jeep Wrangler may experience a Malfunction Indicator Lamp (MIL) illumination or an intermittent "ACC/FCW Unavailable Service Required" message in the instrument panel cluster. These symptoms are often accompanied by specific diagnostic trouble codes (DTCs). This 2025 Jeep Wrangler manufacturer_communication outlines a software update designed to correct these conditions.

Symptoms You Might Experience

If your 2025 Jeep Wrangler is affected, you might notice the Malfunction Indicator Lamp (MIL) illuminating on your dashboard. Additionally, an intermittent message stating "ACC/FCW Unavailable Service Required" may appear in the Instrument Panel Cluster (IPC), indicating a problem with the Adaptive Cruise Control (ACC) or Forward Collision Warning (FCW) systems.

Fault Codes (DTCs)

The issues described are typically associated with one or more of the following Diagnostic Trouble Codes (DTCs) being set:

• C2206-00 Vehicle Configuration Mismatch: This DTC can be triggered after a recent aftermarket tire installation or other tire modifications.
• C2318-49 - Front Camera - Internal Electronic Failure: This code indicates an internal issue with the front camera system.

Diagnosis and Trigger Conditions

A dealership technician will confirm the presence of a Malfunction Indicator Lamp (MIL) illumination and check for the specific DTCs mentioned. This 2025 Jeep Wrangler manufacturer_communication specifically highlights that DTC C2206-00, "Vehicle Configuration Mismatch," has been observed to set after aftermarket tire installations or modifications. The software update specifically addresses this condition when it causes the DTC.

Repair Procedure Summary

The resolution for these issues involves reprogramming the Driver Assistant System Module (DASM) with the latest available software. This update is designed to correctly address the conditions that cause the MIL illumination, the "ACC/FCW Unavailable Service Required" message, and the associated DTCs, including C2206-00 and C2318-49.

Important Warnings

Owners should be aware that the DTC C2206-00, "Vehicle Configuration Mismatch," can be triggered by aftermarket tire installations or modifications. The updated software is specifically designed to address this DTC when it arises from such conditions. This aims to prevent unnecessary component replacements by providing a software solution for these scenarios.

What Owners Should Do

If your 2025 Jeep Wrangler is exhibiting a Malfunction Indicator Lamp (MIL) or the "ACC/FCW Unavailable Service Required" message, especially if you've recently changed tires, you should contact your authorized Jeep dealer. Inform them of the symptoms and mention the possibility of a software update for the Driver Assistant System Module (DASM) as per NHTSA ID 11026544. The dealer will diagnose the vehicle and apply the necessary software update.

Source: NHTSA ID 11026544