2021-2025 Jeep/RAM Rear Defogger Solder Terminals Detached

Owners of certain 2021-2025 Jeep and RAM vehicles might experience issues with their rear window defogger. Manufacturer communication TSB S2523000024, released in April 2025, addresses instances where the rear defogger solder terminals have detached, leading to the system not functioning correctly. This can result in "all or part of the rear window glass will not clear using the defogger / heated glass function sales code GFA."

Symptoms

The most direct and noticeable symptom for owners is the failure of the rear window defogger to clear the glass. This can manifest as "all or part of the rear window glass will not clear using the defogger / heated glass function sales code GFA." This means that when the defogger is activated, sections of the rear window, or even the entire window, remain fogged or iced over. This condition significantly reduces rearward visibility, posing a safety concern, particularly in adverse weather conditions like rain, snow, or high humidity. If you observe your Jeep Wrangler rear defogger not working, or only partially working, this TSB may offer insight into the underlying cause.

What Owners Should Know

This manufacturer communication, TSB S2523000024, is an informational document for technicians and does not authorize warranty repairs. It serves as a record of past experiences and known conditions. The document explicitly states: "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." This means that while the TSB identifies a common issue, the decision for repair and any associated costs are at the discretion of the technician and dealership, as it's not a recall or a warranty authorization.

Diagnosis and Repair Information

For technicians, this manufacturer communication, TSB S2523000024, directs them to the Service Library for comprehensive repair instructions. The specific section to reference is "08 - Electrical / 8G - Heated/Cooled Systems / Heated Glass / GRID, Defogger / Standard Procedure." This detailed procedure provides guidance on how to properly diagnose and address issues related to the rear defogger grid or solder button, including cases where the solder terminals have detached. Technicians will follow these steps to ensure a correct and lasting repair, restoring full functionality to the heated glass system (identified by sales code GFA). This ensures that the rear window can be effectively cleared, enhancing safety and driver comfort. If your Jeep Wrangler rear defogger not working, your service technician should consult this resource.

Source: NHTSA ID 11016617