2024 Jeep Wrangler Heated Steering Wheel Not Working TSB

Owners of certain 2024 Jeep Wrangler vehicles may find that their heated steering wheel is not functioning correctly. Specifically, the symptom reported is that the "Heated Steering Wheel does not get hot enough or does not work." This problem affects vehicles equipped with the Heated Steering Wheel option, identified by Sales Code NHS. Stellantis has issued Technical Service Bulletin (TSB) 08-121-26 to address this concern, providing a software update for the Comfort Seat Wheel Module (CSWM).

This TSB, dated March 21, 2026, applies to vehicles sold in North America markets. If you are experiencing your Jeep Wrangler heated steering wheel not working, this bulletin outlines the necessary repair.

Symptoms

The primary symptom owners may experience is that the "Heated Steering Wheel does not get hot enough or does not work." This indicates a malfunction in the heating capability of the steering wheel, impacting comfort, especially in colder climates.

Cause of the Issue

The root cause of the Jeep Wrangler heated steering wheel not working or not heating sufficiently has been identified as an issue with the Comfort Seat Wheel Module (CSWM) software. An outdated or faulty software version within this module prevents the heated steering wheel from operating as intended.

Diagnosis

When a customer reports the symptom of the heated steering wheel not working, technicians are instructed to use a Scan Tool, such as wiTECH, in conjunction with diagnostic procedures available in DealerCONNECT/Service Library. The purpose is to verify that all related systems are functioning correctly. If any Diagnostic Trouble Codes (DTCs) or other symptom conditions are present that are not directly related to the heated steering wheel issue, these must be recorded and addressed separately before proceeding with the TSB's repair procedure.

Repair Procedure Summary

The repair for the Jeep Wrangler heated steering wheel not working involves reprogramming the Comfort Seat Wheel Module (CSWM) with the latest available software. This process is critical for restoring proper functionality to the heated steering wheel.

Before beginning the reprogramming, technicians must install a battery charger to maintain a stable voltage. It is crucial to ensure the battery voltage does not drop below 13.2 volts and does not exceed 13.5 volts during the entire flash process. If the flash process is interrupted or aborted for any reason, it must be restarted from the beginning to ensure the software is installed correctly. After the reprogramming is complete, technicians must use the wiTECH application to clear any Diagnostic Trouble Codes (DTCs) that may have been set in any module due to the reprogramming process. The wiTECH application is designed to automatically present all such DTCs for clearing.

Important Warnings

For technicians performing the software update outlined in TSB 08-121-26, it is critical to observe the following:

• Battery Voltage: Install a battery charger to ensure battery voltage does not drop below 13.2 volts. Do not allow the charging voltage to climb above 13.5 volts during the flash process.
• Interruption: If this flash process is interrupted or aborted, the flash should be restarted.

Owner Action

If your 2024 Jeep Wrangler is experiencing the symptom of the "Heated Steering Wheel does not get hot enough or does not work," you should schedule an appointment with an authorized Stellantis dealer. The dealer will diagnose the issue and perform the necessary software update for the Comfort Seat Wheel Module (CSWM) as per TSB 08-121-26. This repair is reimbursable under the provisions of your vehicle's warranty.

Claims Data

For dealer claims related to this bulletin, the labor operation number is 18-52-34-9E, with a labor description of "Module, Comfort Seat Wheel (CSWM) - Reprogram (0 - Introduction)." The skill category is 6 - Electrical and Body Systems, and the estimated labor time is 0.2 hours. The failure code to be used is CC, indicating a customer concern.

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Source: NHTSA ID: 11030236