2023-2024 Tonale/Hornet Passenger Power Seat Not Operating TSB

Owners of 2023-2024 Alfa Romeo Tonale and Dodge Hornet vehicles may encounter an issue where the passenger power seat does not operate. This problem, detailed in Technical Service Bulletin (TSB) S2408000053, points to a specific electrical component as the root cause. The TSB provides a straightforward repair procedure to restore functionality to the passenger power seat.

This bulletin, released in May 2024, specifically addresses the Passenger Power Seat Does Not Operate condition, offering a clear solution for technicians and owners alike. If you are experiencing a Tonale passenger seat not operating, this information will guide you on the likely cause and resolution.

Symptoms

The primary symptom is that the passenger power seat switch does not operate, preventing the seat from moving. Owners will notice that attempts to adjust the passenger seat are unsuccessful. Importantly, technicians have observed that this issue typically presents with "no Diagnostic Trouble Codes (DTCs)" stored in the vehicle's system, meaning standard diagnostic scans may not immediately identify the problem.

Diagnosis / Trigger Conditions

The TSB identifies that the F08 20 Amp passenger power seat fuse may become open. This can occur if the power seat switch operation commands three motor seat actions simultaneously, drawing excessive current and causing the fuse to blow. This condition leads directly to the Tonale passenger seat not operating symptom.

Repair Procedure Summary

To resolve the Passenger Power Seat Does Not Operate issue, the repair involves replacing the affected fuse with a higher-rated one. The steps are as follows:

1. Locate the Fuse Box: The rear fuse box is situated on the left rear side of the vehicle.
2. Access the Fuse Box: Remove the snap-on cover of the fuse box by utilizing the two levers located on its cap.
3. Identify the Fuse: Once the cover is removed, locate the yellow 20 Amp fuse labeled F08 within the fuse box. Visual aids in the TSB help pinpoint its exact position.
4. Remove the Fuse: Use a yellow fuse extractor tool to safely remove the 20 Amp (yellow) F08 fuse.
5. Install New Fuse: Replace the removed 20 Amp fuse with a new 25 Amp (white) fuse. This upgrade ensures the fuse can handle the transient current spikes that might occur when multiple seat motors are activated simultaneously.

No further service actions are required once the fuse has been replaced.

Required Parts

The only specific part required for this repair is a 25 Amp fuse. While the TSB does not specify a part number, it indicates a standard 25 Amp fuse (typically white in color) should be used as a replacement for the original 20 Amp fuse.

Important Warnings

Owners should be aware of a critical disclaimer from the manufacturer communication: "This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate course of action."

Owner Action

If you are experiencing a Tonale passenger seat not operating in your 2023-2024 Alfa Romeo Tonale or Dodge Hornet, it is recommended to visit an authorized dealership. While the repair is straightforward, a qualified technician can ensure the correct fuse is identified and replaced safely. Since the document does not authorize warranty repairs, it is advisable to discuss potential costs with your dealership.

Source: NHTSA manufacturer communication S2408000053 (NHTSA ID 11001015)