2023 Jeep Wrangler Heated Steering Wheel Not Working TSB

Symptoms

Owners of certain 2023 Jeep Wrangler vehicles equipped with a heated steering wheel may notice that the component is not functioning as expected. The primary symptom reported is that the "Heated Steering Wheel does not get hot enough or does not work." This means the steering wheel either fails to heat up at all or does not reach an adequate temperature to provide comfort.

Cause

The root cause of the 2023 Jeep Wrangler heated steering wheel malfunction has been identified as a software issue within the Comfort Seat Wheel Module (CSWM). This module is responsible for controlling various comfort features, including the heated steering wheel, and a software glitch prevents it from operating correctly.

Important Warnings for Technicians and Owners

When addressing this issue, specific precautions must be taken during the repair process:

• Battery Voltage Management: Technicians must install a battery charger to ensure the battery voltage remains above 13.2 volts throughout the software flash process. It is equally important to prevent the charging voltage from exceeding 13.5 volts.
• Flash Interruption: If the software flash process is interrupted or aborted for any reason, it must be restarted from the beginning to ensure proper module programming.
• Failure Code Usage: Dealers are instructed to use failure code "CC" (Customer Concern) specifically with Technical Service Bulletin 08-120-26 when the customer's reported symptom matches the heated steering wheel issue. When using this code, the 3C's (customer's concern, cause, and correction) must be documented for processing flash/reprogramming conditions.

Diagnosis

To properly diagnose the issue, a technician will utilize a Scan Tool (wiTECH) in conjunction with the appropriate Diagnostic Procedures found in DealerCONNECT/Service Library. This process helps verify that all related systems are functioning as designed. If any Diagnostic Trouble Codes (DTCs) or other symptom conditions are present that are not related to the heated steering wheel issue, they must be recorded and addressed before proceeding with the software update outlined in TSB 08-120-26.

Repair Procedure Summary

The repair for the 2023 Jeep Wrangler heated steering wheel involves a straightforward software update to the Comfort Seat Wheel Module (CSWM). The procedure is as follows:

1. Reprogramming the CSWM: The technician will reprogram the CSWM with the latest available software using the wiTECH Diagnostic Application. Should any issues arise during this flashing process, a ticket must be submitted to the Helpdesk for assistance.
2. Clearing DTCs: After the reprogramming is complete, the wiTECH application will automatically display any Diagnostic Trouble Codes (DTCs) that may have been set in any module due to the reprogramming. These codes must then be cleared.

Required Tools or Parts

The primary tool required for this repair is a wiTECH or Equivalent diagnostic scan tool, which is necessary to perform the software reprogramming of the CSWM.

Owner Action

If you own a 2023 Jeep Wrangler with a heated steering wheel and are experiencing the symptom of it not getting hot enough or not working, you should schedule an appointment with an authorized Jeep dealership. The repair, which involves a software update to the Comfort Seat Wheel Module (CSWM) as detailed in TSB 08-120-26, is reimbursable under the provisions of your vehicle's warranty.

Source: NHTSA ID: 11030210