2025 Jeep Wrangler RFHM Update Prevents Key Fob Theft

Jeep has released Technical Service Bulletin (TSB) 08-162-25 for the 2025 Jeep Wrangler to enhance vehicle security. This TSB specifically targets the Radio Frequency Hub Module (RFHM) with a software update designed to prevent unauthorized key fob programming. The 2025 Jeep Wrangler RFHM update aims to protect owners from potential vehicle theft.

Symptoms and Owner Concerns

Owners of the 2025 Jeep Wrangler may express concerns about vehicle security. The primary symptom addressed by this TSB is that "Customers may be concerned about vehicle theft due to ability of key FOBs to be programmed through RFHM." This concern highlights a potential vulnerability where unauthorized individuals could program new key fobs to the vehicle without the owner's knowledge, potentially leading to an unwanted drive-off.

The Role of the Radio Frequency Hub Module (RFHM)

The Radio Frequency Hub Module (RFHM) is a critical component in your Jeep Wrangler's electrical system. It manages various functions related to remote access and security, including communication with your vehicle's key fobs. The RFHM is responsible for recognizing and validating the unique codes from your key fob, allowing you to lock, unlock, and start your vehicle. A vulnerability in its software could compromise these security measures.

Why This Update is Necessary

The core issue identified is a vulnerability within the RFHM software itself. This vulnerability could potentially allow unauthorized programming of new key fobs, which in turn could facilitate vehicle theft. The 2025 Jeep Wrangler RFHM update is a software enhancement specifically designed to prevent hackers from programming their own key fobs to the vehicle. This measure is intended to deter an unwanted drive-off of the vehicle without the customer's knowledge, significantly improving the vehicle's anti-theft capabilities.

Repair Procedure Summary

The repair outlined in TSB 08-162-25 involves updating the RFHM module with the latest available software. This process requires the use of a wiTECH diagnostic tool and adherence to specific steps to ensure a successful update:

1. Preparation: Before beginning the reprogramming process, a battery charger must be installed. This is crucial to maintain stable voltage during the update.
2. Reprogramming: The RFHM module is then reprogrammed using the latest software available through the wiTECH Diagnostic Application.
3. DTC Clearing: After the reprogramming is complete, any Diagnostic Trouble Codes (DTCs) that may have been set in any module during the process must be cleared. The wiTECH application will automatically present these DTCs and allow for their clearing.

This 2025 Jeep Wrangler RFHM update is a straightforward software flash that takes approximately 0.3 hours of labor (Labor Operation No: 18-19-12-BB).

Important Notes for the Repair

Technicians performing this update must observe the following critical instructions:

• Battery Voltage: Install a battery charger to ensure battery voltage does not drop below 13.2 volts. It is equally important not to allow the charging voltage to climb above 13.5 volts during the flash process.
• Interrupted Flash: If the flash process is interrupted or aborted for any reason, the flash should be restarted from the beginning.
• Technical Issues: Should any issues arise when flashing a module using the wiTECH Diagnostic Application, technicians are instructed to submit a ticket to the Helpdesk for assistance.

Warranty Coverage

This software update for the 2025 Jeep Wrangler RFHM is reimbursable under the provisions of the vehicle's warranty. When processing the claim, dealers must use Failure Code CC (Customer Concern) if the customer's concern matches the symptom identified in this Technical Service Bulletin.

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Source: NHTSA ID: 11018683