2025 Jeep Compass ACC Module Update TSB 08-162-26

Owners of the 2025 Jeep Compass (MP) equipped with Adaptive Cruise Control W/Stop & Go (Sales Code NHZ) may encounter issues with their Adaptive Cruise Control (ACC) system. This technical service bulletin, TSB 08-162-26, addresses these concerns by outlining a procedure to update the ACC module software.

Symptoms

If your 2025 Jeep Compass is affected, you might notice a Malfunction Indicator Lamp (MIL) illuminating on your dashboard. This indicates a problem with one of the vehicle's systems. Additionally, the Instrument Panel Cluster (IPC) may display a specific warning message. These symptoms point towards a potential issue with the Adaptive Cruise Control system.

Fault Codes / DTCs

Customers experiencing these symptoms will likely find a specific Diagnostic Trouble Code (DTC) stored in the vehicle's system. This code helps technicians identify the root cause of the problem.

Code	Description
C14A4-00	Sensor Adjustment Required

In addition to the DTC, the Instrument Panel Cluster (IPC) may display the verbatim message: "ACC/FCW Unavailable, Service Required". This message directly informs the driver about the ACC and Forward Collision Warning (FCW) system's status.

Diagnosis / Trigger Conditions

To diagnose the issue, a technician will use a Scan Tool, such as wiTECH, along with the Diagnostic Procedures available in the DealerCONNECT/Service Library. It is crucial to verify that all related systems are functioning correctly. If any other DTCs or symptom conditions are present beyond those listed in TSB 08-162-26, they must be addressed and repaired before proceeding with the ACC module update. If the customer describes the symptoms mentioned above, the repair procedure should be initiated.

Repair Procedure Summary

The repair for the 2025 Jeep Compass ACC module update involves a three-step process to ensure the system functions correctly. The primary step is to reprogram the Adaptive Cruise Control (ACC) module with the latest available software. This is performed using the wiTECH Diagnostic Application. If any issues arise during the flashing process, technicians are instructed to submit a ticket to the Helpdesk for assistance.

Following the software reprogramming, any Diagnostic Trouble Codes (DTCs) that may have been set in any modules due to the reprogramming must be cleared. The wiTECH application is designed to automatically present all DTCs after the flash, allowing for easy clearing. The final step involves performing an ACC DASM Calibration. Detailed service procedures for this calibration can be found in the DealerCONNECT/Service Library under the path: Service Info> 08 - Electrical / 8E - Electronic Control Modules / Module, Adaptive Cruise Control (ACC) / Module Programming.

Required Tools or Parts

The primary tool required for this service action is the wiTECH diagnostic system or an equivalent tool. This system is essential for reprogramming the ACC module and performing the necessary calibrations.

Important Warnings

This bulletin, TSB 08-162-26, is provided as technical information only and does not automatically authorize a repair. It is important to note that no part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means without written permission of FCA US LLC.

Owner Action

If your 2025 Jeep Compass is exhibiting a Malfunction Indicator Lamp (MIL) illumination, displaying DTC C14A4-00, or showing the "ACC/FCW Unavailable, Service Required" message, you should schedule an appointment with an authorized Jeep dealership. The repair, which involves reprogramming the ACC module and performing a calibration, is reimbursable within the provisions of your vehicle's warranty. The labor time for this procedure is estimated at 0.8 hours, identified by Labor Operation No: 18-80-95-9C and Failure Code: ZZ (Service Action).

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Source: NHTSA ID: 11031442